diff --git a/core/model.py b/core/model.py
index b4150155db9677124eabab079f003743fc6c4d8b..212db44c8dc60a20f6e5ed3f7c338b5336f41e2a 100755
--- a/core/model.py
+++ b/core/model.py
@@ -38,6 +38,34 @@ class Model(object):
         self._namespace = "train.model"
         self._platform = envs.get_platform()
 
+    def _init_slots(self):
+        sparse_slots = envs.get_global_env("sparse_slots", None, "train.reader")
+        dense_slots = envs.get_global_env("dense_slots", None, "train.reader")
+
+        if sparse_slots is not None or dense_slots is not None:
+            sparse_slots = sparse_slots.strip().split(" ")
+            dense_slots = dense_slots.strip().split(" ")
+            dense_slots_shape = [[int(j) for j in i.split(":")[1].strip("[]").split(",")] for i in dense_slots]
+            dense_slots = [i.split(":")[0] for i in dense_slots]
+            self._dense_data_var = []
+            for i in range(len(dense_slots)):
+                l = fluid.layers.data(name=dense_slots[i], shape=dense_slots_shape[i], dtype="float32")
+                self._data_var.append(l)
+                self._dense_data_var.append(l)
+            self._sparse_data_var = []
+            for name in sparse_slots:
+                l = fluid.layers.data(name=name, shape=[1], lod_level=1, dtype="int64")
+                self._data_var.append(l)
+                self._sparse_data_var.append(l)
+
+        dataset_class = envs.get_global_env("dataset_class", None, "train.reader")
+        if dataset_class == "DataLoader":
+            self._init_dataloader()
+
+    def _init_dataloader(self):
+        self._data_loader = fluid.io.DataLoader.from_generator(
+            feed_list=self._data_var, capacity=64, use_double_buffer=False, iterable=False)
+
     def get_inputs(self):
         return self._data_var
 
diff --git a/core/reader.py b/core/reader.py
index 955afa5e2f9a4d430912ad798de95df3160a3a69..01502761e30a7215c0c916dcde1825a4836280db 100755
--- a/core/reader.py
+++ b/core/reader.py
@@ -13,6 +13,7 @@
 # limitations under the License.
 from __future__ import print_function
 
+import sys
 import abc
 import os
 
@@ -44,3 +45,58 @@ class Reader(dg.MultiSlotDataGenerator):
     @abc.abstractmethod
     def generate_sample(self, line):
         pass
+
+
+class SlotReader(dg.MultiSlotDataGenerator):
+    __metaclass__ = abc.ABCMeta
+
+    def __init__(self, config):
+        dg.MultiSlotDataGenerator.__init__(self)
+        if os.path.isfile(config):
+            with open(config, 'r') as rb:
+                _config = yaml.load(rb.read(), Loader=yaml.FullLoader)
+        else:
+            raise ValueError("reader config only support yaml")
+        envs.set_global_envs(_config)
+        envs.update_workspace()
+
+    def init(self, sparse_slots, dense_slots, padding=0):
+        from operator import mul
+        self.sparse_slots = sparse_slots.strip().split(" ")
+        self.dense_slots = dense_slots.strip().split(" ")
+        self.dense_slots_shape = [reduce(mul, [int(j) for j in i.split(":")[1].strip("[]").split(",")]) for i in self.dense_slots]
+        self.dense_slots = [i.split(":")[0] for i in self.dense_slots]
+        self.slots = self.dense_slots + self.sparse_slots
+        self.slot2index = {}
+        self.visit = {}
+        for i in range(len(self.slots)):
+            self.slot2index[self.slots[i]] = i
+            self.visit[self.slots[i]] = False
+        self.padding = padding
+
+    def generate_sample(self, l):
+        def reader():
+            line = l.strip().split(" ")
+            output = [(i, []) for i in self.slots]
+            for i in line:
+                slot_feasign = i.split(":")
+                slot = slot_feasign[0]
+                if slot not in self.slots:
+                    continue
+                if slot in self.sparse_slots:
+                    feasign = int(slot_feasign[1])
+                else:
+                    feasign = float(slot_feasign[1])
+                output[self.slot2index[slot]][1].append(feasign)
+                self.visit[slot] = True
+            for i in self.visit:
+                slot = i
+                if not self.visit[slot]:
+                    if i in self.dense_slots:
+                        output[self.slot2index[i]][1].extend([self.padding] * self.dense_slots_shape[self.slot2index[i]])
+                    else:
+                        output[self.slot2index[i]][1].extend([self.padding])
+                else:
+                    self.visit[slot] = False
+            yield output
+        return reader
diff --git a/core/trainers/transpiler_trainer.py b/core/trainers/transpiler_trainer.py
index 81591056c94dc414fdeeba12d449f18aaaa0e216..a67d4759be7ae27c4a8c57eb43409102a8400c53 100755
--- a/core/trainers/transpiler_trainer.py
+++ b/core/trainers/transpiler_trainer.py
@@ -23,6 +23,7 @@ from paddle.fluid.incubate.fleet.parameter_server.distribute_transpiler import f
 from paddlerec.core.trainer import Trainer
 from paddlerec.core.utils import envs
 from paddlerec.core.utils import dataloader_instance
+from paddlerec.core.reader import SlotReader
 
 
 class TranspileTrainer(Trainer):
@@ -50,14 +51,22 @@ class TranspileTrainer(Trainer):
             namespace = "evaluate.reader"
             class_name = "EvaluateReader"
 
+        sparse_slots = envs.get_global_env("sparse_slots", None, namespace)
+        dense_slots = envs.get_global_env("dense_slots", None, namespace)
+
         batch_size = envs.get_global_env("batch_size", None, namespace)
-        reader_class = envs.get_global_env("class", None, namespace)
         print("batch_size: {}".format(batch_size))
-        reader = dataloader_instance.dataloader(
-            reader_class, state, self._config_yaml)
 
-        reader_class = envs.lazy_instance_by_fliename(reader_class, class_name)
-        reader_ins = reader_class(self._config_yaml)
+        if sparse_slots is None and dense_slots is None:
+            reader_class = envs.get_global_env("class", None, namespace)
+            reader = dataloader_instance.dataloader(
+                reader_class, state, self._config_yaml)
+            reader_class = envs.lazy_instance_by_fliename(reader_class, class_name)
+            reader_ins = reader_class(self._config_yaml)
+        else:
+            reader = dataloader_instance.slotdataloader("", state, self._config_yaml)
+            reader_ins = SlotReader(self._config_yaml)
+
         if hasattr(reader_ins, 'generate_batch_from_trainfiles'):
             dataloader.set_sample_list_generator(reader)
         else:
@@ -93,13 +102,23 @@ class TranspileTrainer(Trainer):
             train_data_path = envs.get_global_env(
                 "test_data_path", None, namespace)
 
+        sparse_slots = envs.get_global_env("sparse_slots", None, namespace)
+        dense_slots = envs.get_global_env("dense_slots", None, namespace)
+
         threads = int(envs.get_runtime_environ("train.trainer.threads"))
         batch_size = envs.get_global_env("batch_size", None, namespace)
         reader_class = envs.get_global_env("class", None, namespace)
         abs_dir = os.path.dirname(os.path.abspath(__file__))
         reader = os.path.join(abs_dir, '../utils', 'dataset_instance.py')
-        pipe_cmd = "python {} {} {} {}".format(
-            reader, reader_class, state, self._config_yaml)
+
+        if sparse_slots is None and dense_slots is None:
+            pipe_cmd = "python {} {} {} {}".format(
+                reader, reader_class, state, self._config_yaml)
+        else:
+            padding = envs.get_global_env("padding", 0, namespace)
+            pipe_cmd = "python {} {} {} {} {} {} {} {}".format(
+                reader, "slot", "slot", self._config_yaml, namespace, \
+                sparse_slots.replace(" ", "#"), dense_slots.replace(" ", "#"), str(padding))
 
         if train_data_path.startswith("paddlerec::"):
             package_base = envs.get_runtime_environ("PACKAGE_BASE")
@@ -147,9 +166,6 @@ class TranspileTrainer(Trainer):
             if not need_save(epoch_id, save_interval, False):
                 return
 
-            #  print("save inference model is not supported now.")
-            #  return
-
             feed_varnames = envs.get_global_env(
                 "save.inference.feed_varnames", None, namespace)
             fetch_varnames = envs.get_global_env(
diff --git a/core/utils/dataloader_instance.py b/core/utils/dataloader_instance.py
index 6234882f4d49191d3b55770078863910a356e9cd..8d4db6f82c05a41a0945f2c882caefd2a3c83d36 100755
--- a/core/utils/dataloader_instance.py
+++ b/core/utils/dataloader_instance.py
@@ -18,6 +18,7 @@ import os
 from paddlerec.core.utils.envs import lazy_instance_by_fliename
 from paddlerec.core.utils.envs import get_global_env
 from paddlerec.core.utils.envs import get_runtime_environ
+from paddlerec.core.reader import SlotReader
 
 
 def dataloader(readerclass, train, yaml_file):
@@ -62,3 +63,49 @@ def dataloader(readerclass, train, yaml_file):
     if hasattr(reader, 'generate_batch_from_trainfiles'):
         return gen_batch_reader()
     return gen_reader
+
+
+def slotdataloader(readerclass, train, yaml_file):
+    if train == "TRAIN":
+        reader_name = "SlotReader"
+        namespace = "train.reader"
+        data_path = get_global_env("train_data_path", None, namespace)
+    else:
+        reader_name = "SlotReader"
+        namespace = "evaluate.reader"
+        data_path = get_global_env("test_data_path", None, namespace)
+
+    if data_path.startswith("paddlerec::"):
+        package_base = get_runtime_environ("PACKAGE_BASE")
+        assert package_base is not None
+        data_path = os.path.join(package_base, data_path.split("::")[1])
+
+    files = [str(data_path) + "/%s" % x for x in os.listdir(data_path)]
+
+    sparse = get_global_env("sparse_slots", None, namespace)
+    dense = get_global_env("dense_slots", None, namespace)
+    padding = get_global_env("padding", 0, namespace)
+    reader = SlotReader(yaml_file)
+    reader.init(sparse, dense, int(padding))
+
+    def gen_reader():
+        for file in files:
+            with open(file, 'r') as f:
+                for line in f:
+                    line = line.rstrip('\n')
+                    iter = reader.generate_sample(line)
+                    for parsed_line in iter():
+                        if parsed_line is None:
+                            continue
+                        else:
+                            values = []
+                            for pased in parsed_line:
+                                values.append(pased[1])
+                            yield values
+
+    def gen_batch_reader():
+        return reader.generate_batch_from_trainfiles(files)
+
+    if hasattr(reader, 'generate_batch_from_trainfiles'):
+        return gen_batch_reader()
+    return gen_reader
diff --git a/core/utils/dataset_instance.py b/core/utils/dataset_instance.py
index 731b3b47169d9e67735953c8488469d4d60cb296..f5175c48df978919c51519d027561011bd3ceb44 100755
--- a/core/utils/dataset_instance.py
+++ b/core/utils/dataset_instance.py
@@ -16,19 +16,33 @@ from __future__ import print_function
 import sys
 
 from paddlerec.core.utils.envs import lazy_instance_by_fliename
+from paddlerec.core.reader import SlotReader
+from paddlerec.core.utils import envs
 
-if len(sys.argv) != 4:
-    raise ValueError("reader only accept 3 argument: 1. reader_class 2.train/evaluate 3.yaml_abs_path")
+if len(sys.argv) < 4:
+    raise ValueError("reader only accept 3 argument: 1. reader_class 2.train/evaluate/slotreader 3.yaml_abs_path")
 
 reader_package = sys.argv[1]
 
-if sys.argv[2] == "TRAIN":
+if sys.argv[2].upper() == "TRAIN":
     reader_name = "TrainReader"
-else:
+elif sys.argv[2].upper() == "EVALUATE":
     reader_name = "EvaluateReader"
+else:
+    reader_name = "SlotReader"
+    namespace = sys.argv[4]
+    sparse_slots = sys.argv[5].replace("#", " ")
+    dense_slots = sys.argv[6].replace("#", " ")
+    padding = int(sys.argv[7])
 
 yaml_abs_path = sys.argv[3]
-reader_class = lazy_instance_by_fliename(reader_package, reader_name)
-reader = reader_class(yaml_abs_path)
-reader.init()
-reader.run_from_stdin()
+
+if reader_name != "SlotReader":
+    reader_class = lazy_instance_by_fliename(reader_package, reader_name)
+    reader = reader_class(yaml_abs_path)
+    reader.init()
+    reader.run_from_stdin()
+else:
+    reader = SlotReader(yaml_abs_path)
+    reader.init(sparse_slots, dense_slots, padding)
+    reader.run_from_stdin()
diff --git a/doc/custom_dataset_reader.md b/doc/custom_dataset_reader.md
index 7f29c21c3a32e2cf17b775741707e4ba83e90373..82b0fd12d4f52fe83155fd371f6041be52c8bcba 100644
--- a/doc/custom_dataset_reader.md
+++ b/doc/custom_dataset_reader.md
@@ -1,3 +1,73 @@
+# PaddleRec 推荐数据集格式
+
+当你的数据集格式为[slot:feasign]*这种模式，或者可以预处理为这种格式时，可以直接使用PaddleRec内置的Reader。
+好处是不用自己写Reader了，各个model之间的数据格式也都可以统一成一样的格式。
+
+## 数据格式说明
+
+假如你的原始数据格式为
+
+```bash
+<label> <integer feature 1> ... <integer feature 13> <categorical feature 1> ... <categorical feature 26>
+```
+
+其中```<label>```表示广告是否被点击，点击用1表示，未点击用0表示。```<integer feature>```代表数值特征（连续特征），共有13个连续特征。
+并且每个特征有一个特征值。
+```<categorical feature>```代表分类特征（离散特征），共有26个离散特征。相邻两个特征用```\t```分隔。
+
+假设这13个连续特征（dense slot）的name如下：
+
+```
+D1 D2 D3 D4 D4 D6 D7 D8 D9 D10 D11 D12 D13
+```
+
+这26个离散特征（sparse slot）的name如下：
+```
+S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 S11 S12 S13 S14 S15 S16 S17 S18 S19 S20 S21 S22 S23 S24 S25 S26
+```
+
+那么下面这条样本（1个label + 13个dense值 + 26个feasign）
+```
+1 0.1 0.4 0.2 0.3 0.5 0.8 0.3 0.2 0.1 0.5 0.6 0.3 0.9 60 16 91 50 52 52 28 69 63 33 87 69 48 59 27 12 95 36 37 41 17 3 86 19 88 60
+```
+
+可以转换成：
+```
+label:1 D1:0.1 D2:0.4 D3:0.2 D4:0.3 D5:0.5 D6:0.8 D7:0.3 D8:0.2 D9:0.1 D10:0.5 D11:0.6 D12:0.3 D13:0.9 S14:60 S15:16 S16:91 S17:50 S18:52 S19:52 S20:28 S21:69 S22:63 S23:33 S24:87 S25:69 S26:48 S27:59 S28:27 S29:12 S30:95 S31:36 S32:37 S33:41 S34:17 S35:3 S36:86 S37:19 S38:88 S39:60
+```
+
+注意：上面各个slot:feasign字段之间的顺序没有要求，比如```D1:0.1 D2:0.4```改成```D2:0.4 D1:0.1```也可以。
+
+
+## 配置
+
+reader中需要配置```sparse_slots```与```dense_slots```，例如
+
+```
+  workspace: xxxx
+
+  reader:
+    batch_size: 2
+    train_data_path: "{workspace}/data/train_data"
+    sparse_slots: "label S1 S2 S3 S4 S5 S6 S7 S8 S9 S10 S11 S12 S13 S14 S15 S16 S17 S18 S19 S20 S21 S22 S23 S24 S25 S26"
+    dense_slots: "D1:1 D2:1 D3:1 D4:1 D4:1 D6:1 D7:1 D8:1 D9:1 D10:1 D11:1 D12:1 D13:1"
+
+  model:
+    xxxxx
+```
+
+sparse_slots表示稀疏特征的列表，以空格分开。
+
+dense_slots表示稠密特征的列表，以空格分开。每个字段的格式是```[dense_slot_name]:[dim1,dim2,dim3...]```，其中```dim1,dim2,dim3...```表示shape
+
+
+配置好了之后，这些slot对应的variable就可以在model中的如下变量啦：
+```
+self._sparse_data_var
+
+self._dense_data_var
+```
+
 # PaddleRec 自定义数据集及Reader
 
 用户自定义数据集及配置异步Reader，需要关注以下几个步骤：
diff --git a/models/contentunderstanding/readme.md b/models/contentunderstanding/readme.md
index 06be7106b287149d24b56773689dad08708a064f..07ec96f2414881998617f048c1e82a3f0d9cda75 100644
--- a/models/contentunderstanding/readme.md
+++ b/models/contentunderstanding/readme.md
@@ -71,13 +71,13 @@ python text2paddle.py raw_big_train_data/ raw_big_test_data/ train_big_data test
 ### 训练
 
 ```
-python -m paddlerec.run -m paddlerec.models.contentunderstanding.classification -d cpu -e single
+python -m paddlerec.run -m paddlerec.models.contentunderstanding.classification
 ```
 
 ### 预测
 
 ```
-python -m paddlerec.run -m paddlerec.models.contentunderstanding.classification -d cpu -e single
+python -m paddlerec.run -m paddlerec.models.contentunderstanding.classification
 ```
 
 ## 效果对比
@@ -88,18 +88,3 @@ python -m paddlerec.run -m paddlerec.models.contentunderstanding.classification
 |       ag news dataset        |       TagSpace       |       --        |       --          |       --          |       --          |
 |       --        |       Classification       |       --        |       --          |       --          |       --          |
 
-
-## 分布式
-### 模型训练性能 (样本/s)
-|       数据集        |       模型       |       单机        |       同步 (4节点)          |       同步 (8节点)          |  同步 (16节点)          |  同步 (32节点)          |
-| :------------------: | :--------------------: | :---------: |:---------: |:---------: |:---------: |:---------: |
-|       --        |       TagSpace       |       --        |       --          |       --          |  --          |  --          |
-|       --        |       Classification       |       --        |       --          |       --          |   --          |   --          |
-
-
-----
-
-|       数据集        |       模型       |       单机        |       异步 (4节点)          |       异步 (8节点)          |  异步 (16节点)          |  异步 (32节点)          |
-| :------------------: | :--------------------: | :---------: |:---------: |:---------: |:---------: |:---------: |
-|       --        |       TagSpace       |       --        |       --          |       --          |  --          |  --          |
-|       --        |       Classification       |       --        |       --          |       --          |   --          |   --          |
diff --git a/models/rank/dcn/config.yaml b/models/rank/dcn/config.yaml
index 3ba01f89d82bab93ac8176788134802b911cc645..6cd89d6aab9a1abba14d9fe7e3b737b76fb2221d 100755
--- a/models/rank/dcn/config.yaml
+++ b/models/rank/dcn/config.yaml
@@ -22,9 +22,10 @@ train:
 
   reader:
     batch_size: 2
-    class: "{workspace}/criteo_reader.py"
-    train_data_path: "{workspace}/data/train"
+    train_data_path: "{workspace}/data/slot_train"
     feat_dict_name: "{workspace}/data/vocab"
+    sparse_slots: "label C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 C14 C15 C16 C17 C18 C19 C20 C21 C22 C23 C24 C25 C26"
+    dense_slots: "I1:1 I2:1 I3:1 I4:1 I5:1 I6:1 I7:1 I8:1 I9:1 I10:1 I11:1 I12:1 I13:1"
 
   model:
     models: "{workspace}/model.py"
diff --git a/models/rank/dcn/criteo_reader.py b/models/rank/dcn/data/get_slot_data.py
similarity index 79%
rename from models/rank/dcn/criteo_reader.py
rename to models/rank/dcn/data/get_slot_data.py
index f136f6d933ed510e33cb645b365e7b68d1206237..77b30296ab9ba99757039f053c6133fd175c2811 100755
--- a/models/rank/dcn/criteo_reader.py
+++ b/models/rank/dcn/data/get_slot_data.py
@@ -11,21 +11,32 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-
-from __future__ import print_function
+import math
+import sys
+import yaml
+from paddlerec.core.reader import Reader
+from paddlerec.core.utils import envs
 import math
 import os
-
 try:
     import cPickle as pickle
 except ImportError:
     import pickle
+from collections import Counter
+import os
+import paddle.fluid.incubate.data_generator as dg
 
-from paddlerec.core.reader import Reader
-from paddlerec.core.utils import envs
+class TrainReader(dg.MultiSlotDataGenerator):
 
+    def __init__(self, config):
+        dg.MultiSlotDataGenerator.__init__(self)
+
+        if os.path.isfile(config):
+            with open(config, 'r') as rb:
+                _config = yaml.load(rb.read(), Loader=yaml.FullLoader)
+        else:
+            raise ValueError("reader config only support yaml")
 
-class TrainReader(Reader):
     def init(self):
         self.cont_min_ = [0, -3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
         self.cont_max_ = [
@@ -48,7 +59,7 @@ class TrainReader(Reader):
         self.cat_feat_idx_dict_list = [{} for _ in range(26)]
 
         # TODO: set vocabulary dictionary
-        vocab_dir = envs.get_global_env("feat_dict_name", None, "train.reader")
+        vocab_dir = "./vocab/"
         for i in range(26):
             lookup_idx = 1  # remain 0 for default value
             for line in open(
@@ -87,6 +98,17 @@ class TrainReader(Reader):
 
         def data_iter():
             label_feat_list = self._process_line(line)
-            yield list(zip(self.label_feat_names, label_feat_list))
+            s = ""
+            for i in list(zip(self.label_feat_names, label_feat_list)):
+                k = i[0]
+                v = i[1]
+                for j in v:
+                    s += " " + k + ":" + str(j)
+            print s.strip()
+            yield None
 
         return data_iter
+
+reader = TrainReader("../config.yaml")
+reader.init()
+reader.run_from_stdin()
diff --git a/models/rank/dcn/data/run.sh b/models/rank/dcn/data/run.sh
new file mode 100644
index 0000000000000000000000000000000000000000..32d653dc4113514740a9ff6de9ec1902aea4eeb1
--- /dev/null
+++ b/models/rank/dcn/data/run.sh
@@ -0,0 +1,14 @@
+python download.py
+python preprocess.py
+
+mkdir slot_train
+for i in `ls ./train`
+do
+    cat train/$i | python get_slot_data.py > slot_train/$i
+done
+
+mkdir slot_test_valid
+for i in `ls ./test_valid`
+do
+    cat test_valid/$i | python get_slot_data.py > slot_test_valid/$i
+done
diff --git a/models/rank/dcn/model.py b/models/rank/dcn/model.py
index 23968503147c1effd6b5d492b85f0536f0c45951..bf3e3051ca3ac92d1e354c6f59313ce496ff2921 100755
--- a/models/rank/dcn/model.py
+++ b/models/rank/dcn/model.py
@@ -31,6 +31,11 @@ class Model(ModelBase):
         self.dnn_use_bn = envs.get_global_env("hyper_parameters.dnn_use_bn", None, self._namespace)
         self.clip_by_norm = envs.get_global_env("hyper_parameters.clip_by_norm", None, self._namespace)
         cat_feat_num = envs.get_global_env("hyper_parameters.cat_feat_num", None, self._namespace)
+
+        self.sparse_inputs = self._sparse_data_var[1:]
+        self.dense_inputs = self._dense_data_var
+        self.target_input = self._sparse_data_var[0]
+
         cat_feat_dims_dict = OrderedDict()
         for line in open(cat_feat_num):
             spls = line.strip().split()
@@ -40,8 +45,8 @@ class Model(ModelBase):
         )
         self.is_sparse = envs.get_global_env("hyper_parameters.is_sparse", None, self._namespace)
 
-        self.dense_feat_names = ['I' + str(i) for i in range(1, 14)]
-        self.sparse_feat_names = ['C' + str(i) for i in range(1, 27)]
+        self.dense_feat_names = [i.name for i in self.dense_inputs]
+        self.sparse_feat_names = [i.name for i in self.sparse_inputs]
 
         # {feat_name: dims}
         self.feat_dims_dict = OrderedDict(
@@ -50,22 +55,18 @@ class Model(ModelBase):
 
         self.net_input = None
         self.loss = None
-
-    def _create_embedding_input(self, data_dict):
+    
+    def _create_embedding_input(self):
         # sparse embedding
-        sparse_emb_dict = OrderedDict((name, fluid.embedding(
-            input=fluid.layers.cast(
-                data_dict[name], dtype='int64'),
-            size=[
-                self.feat_dims_dict[name] + 1,
-                6 * int(pow(self.feat_dims_dict[name], 0.25))
-            ],
-            is_sparse=self.is_sparse)) for name in self.sparse_feat_names)
-
+        sparse_emb_dict = OrderedDict()
+        for var in self.sparse_inputs:
+            sparse_emb_dict[var.name] = fluid.embedding(input=var,
+                size=[self.feat_dims_dict[var.name] + 1,
+                6 * int(pow(self.feat_dims_dict[var.name], 0.25))
+                ],is_sparse=self.is_sparse)
+            
         # combine dense and sparse_emb
-        dense_input_list = [
-            data_dict[name] for name in data_dict if name.startswith('I')
-        ]
+        dense_input_list = self.dense_inputs
         sparse_emb_list = list(sparse_emb_dict.values())
 
         sparse_input = fluid.layers.concat(sparse_emb_list, axis=-1)
@@ -111,16 +112,11 @@ class Model(ModelBase):
         return fluid.layers.reduce_sum(fluid.layers.square(w))
 
     def train_net(self):
+        self.model._init_slots()
         self.init_network()
-        self.target_input = fluid.data(
-            name='label', shape=[None, 1], dtype='float32')
-        data_dict = OrderedDict()
-        for feat_name in self.feat_dims_dict:
-            data_dict[feat_name] = fluid.data(
-                name=feat_name, shape=[None, 1], dtype='float32')
-
-        self.net_input = self._create_embedding_input(data_dict)
-
+        
+        self.net_input = self._create_embedding_input()
+        
         deep_out = self._deep_net(self.net_input, self.dnn_hidden_units, self.dnn_use_bn, False)
 
         cross_out, l2_reg_cross_loss = self._cross_net(self.net_input,
@@ -130,9 +126,6 @@ class Model(ModelBase):
         logit = fluid.layers.fc(last_out, 1)
 
         self.prob = fluid.layers.sigmoid(logit)
-        self._data_var = [self.target_input] + [
-            data_dict[dense_name] for dense_name in self.dense_feat_names
-        ] + [data_dict[sparse_name] for sparse_name in self.sparse_feat_names]
 
         # auc
         prob_2d = fluid.layers.concat([1 - self.prob, self.prob], 1)
@@ -141,9 +134,9 @@ class Model(ModelBase):
             input=prob_2d, label=label_int, slide_steps=0)
         self._metrics["AUC"] = auc_var
         self._metrics["BATCH_AUC"] = batch_auc_var
-
+        
         # logloss
-        logloss = fluid.layers.log_loss(self.prob, self.target_input)
+        logloss = fluid.layers.log_loss(self.prob, fluid.layers.cast(self.target_input, dtype='float32'))
         self.avg_logloss = fluid.layers.reduce_mean(logloss)
 
         # reg_coeff * l2_reg_cross
@@ -157,4 +150,5 @@ class Model(ModelBase):
         return optimizer
 
     def infer_net(self, parameter_list):
+        self.model._init_slots()
         self.deepfm_net()
diff --git a/models/rank/deepfm/config.yaml b/models/rank/deepfm/config.yaml
index debaf2f0c3f5af5bd406661cfeb0137c46cb64c6..21c6039ca65d092c899de560f6f47ff350cb14e7 100755
--- a/models/rank/deepfm/config.yaml
+++ b/models/rank/deepfm/config.yaml
@@ -22,9 +22,10 @@ train:
 
   reader:
     batch_size: 2
-    class: "{workspace}/criteo_reader.py"
-    train_data_path: "{workspace}/data/train_data"
-    feat_dict_name: "{workspace}/data/aid_data/feat_dict_10.pkl2"
+    train_data_path: "{workspace}/data/slot_train_data"
+    feat_dict_name: "{workspace}/data/feat_dict_10.pkl2"
+    sparse_slots: "label feat_idx"
+    dense_slots: "feat_value:39"
 
   model:
     models: "{workspace}/model.py"
diff --git a/models/rank/deepfm/criteo_reader.py b/models/rank/deepfm/data/get_slot_data.py
similarity index 75%
rename from models/rank/deepfm/criteo_reader.py
rename to models/rank/deepfm/data/get_slot_data.py
index 7ed215bd763283076c66f6bd6ef0e66e132ef5d4..59dc33b0d7b6aa1b2087134c9952fc160ca6cd04 100755
--- a/models/rank/deepfm/criteo_reader.py
+++ b/models/rank/deepfm/data/get_slot_data.py
@@ -12,18 +12,24 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from __future__ import print_function
-
+import yaml
+from paddlerec.core.reader import Reader
+from paddlerec.core.utils import envs
 try:
     import cPickle as pickle
 except ImportError:
     import pickle
+class TrainReader(dg.MultiSlotDataGenerator):
 
-from paddlerec.core.reader import Reader
-from paddlerec.core.utils import envs
+    def __init__(self, config):
+        dg.MultiSlotDataGenerator.__init__(self)
 
+        if os.path.isfile(config):
+            with open(config, 'r') as rb:
+                _config = yaml.load(rb.read(), Loader=yaml.FullLoader)
+        else:
+            raise ValueError("reader config only support yaml")
 
-class TrainReader(Reader):
     def init(self):
         self.cont_min_ = [0, -3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
         self.cont_max_ = [
@@ -37,8 +43,8 @@ class TrainReader(Reader):
         self.continuous_range_ = range(1, 14)
         self.categorical_range_ = range(14, 40)
         # load preprocessed feature dict 
-        self.feat_dict_name = envs.get_global_env("feat_dict_name", None, "train.reader")
-        self.feat_dict_ = pickle.load(open(self.feat_dict_name, 'rb'))
+        self.feat_dict_name = "aid_data/feat_dict_10.pkl2"
+        self.feat_dict_ = pickle.load(open(self.feat_dict_name, 'rb')) 
 
     def _process_line(self, line):
         features = line.rstrip('\n').split('\t')
@@ -70,6 +76,16 @@ class TrainReader(Reader):
 
         def data_iter():
             feat_idx, feat_value, label = self._process_line(line)
-            yield [('feat_idx', feat_idx), ('feat_value', feat_value), ('label', label)]
-
+            s = ""
+            for i in [('feat_idx', feat_idx), ('feat_value', feat_value), ('label', label)]:
+                k = i[0]
+                v = i[1]
+                for j in v:
+                    s += " " + k + ":" + str(j)
+            print s.strip()
+            yield None
         return data_iter
+
+reader = TrainReader("../config.yaml")
+reader.init()
+reader.run_from_stdin()
diff --git a/models/rank/deepfm/data/run.sh b/models/rank/deepfm/data/run.sh
new file mode 100644
index 0000000000000000000000000000000000000000..c2bc4ae8ce1d7ad7c89ebd48f993ab920fba0ba2
--- /dev/null
+++ b/models/rank/deepfm/data/run.sh
@@ -0,0 +1,13 @@
+python download_preprocess.py 
+
+mkdir slot_train_data
+for i in `ls ./train_data`
+do
+    cat train_data/$i | python get_slot_data.py > slot_train_data/$i
+done
+
+mkdir slot_test_data
+for i in `ls ./test_data`
+do
+    cat test_data/$i | python get_slot_data.py > slot_test_data/$i
+done
diff --git a/models/rank/deepfm/model.py b/models/rank/deepfm/model.py
index 3c5b128044ef050d745df9380cade04f1a88bf5c..bfda02a21dcc7949b487ef074a783d2f24bcd1f5 100755
--- a/models/rank/deepfm/model.py
+++ b/models/rank/deepfm/model.py
@@ -33,24 +33,14 @@ class Model(ModelBase):
         # ------------------------- network input --------------------------
 
         num_field = envs.get_global_env("hyper_parameters.num_field", None, self._namespace)
-        raw_feat_idx = fluid.data(name='feat_idx', shape=[None, num_field],
-                                  dtype='int64')  # None * num_field(defalut:39)
-        raw_feat_value = fluid.data(name='feat_value', shape=[None, num_field], dtype='float32')  # None * num_field
-        self.label = fluid.data(name='label', shape=[None, 1], dtype='float32')  # None * 1
-        feat_idx = fluid.layers.reshape(raw_feat_idx, [-1, 1])  # (None * num_field) * 1
+        
+        raw_feat_idx = self._sparse_data_var[1]
+        raw_feat_value = self._dense_data_var[0]
+        self.label = self._sparse_data_var[0]
+        
+        feat_idx = raw_feat_idx
         feat_value = fluid.layers.reshape(raw_feat_value, [-1, num_field, 1])  # None * num_field * 1
-
-        # ------------------------- set _data_var --------------------------
-
-        self._data_var.append(raw_feat_idx)
-        self._data_var.append(raw_feat_value)
-        self._data_var.append(self.label)
-        if self._platform != "LINUX":
-            self._data_loader = fluid.io.DataLoader.from_generator(
-                feed_list=self._data_var, capacity=64, use_double_buffer=False, iterable=False)
-
-        # ------------------------- first order term --------------------------
-
+       
         reg = envs.get_global_env("hyper_parameters.reg", 1e-4, self._namespace)
         first_weights_re = fluid.embedding(
             input=feat_idx,
@@ -134,11 +124,12 @@ class Model(ModelBase):
         self.predict = fluid.layers.sigmoid(y_first_order + y_second_order + y_dnn)
 
     def train_net(self):
+        self.model._init_slots()
         self.deepfm_net()
 
         # ------------------------- Cost(logloss) --------------------------
 
-        cost = fluid.layers.log_loss(input=self.predict, label=self.label)
+        cost = fluid.layers.log_loss(input=self.predict, label=fluid.layers.cast(self.label, "float32"))
         avg_cost = fluid.layers.reduce_sum(cost)
 
         self._cost = avg_cost
@@ -159,4 +150,5 @@ class Model(ModelBase):
         return optimizer
 
     def infer_net(self, parameter_list):
+        self.model._init_slots()
         self.deepfm_net()
diff --git a/models/rank/dnn/config.yaml b/models/rank/dnn/config.yaml
index c44b3407795a934e4dcc74296e77524181d8cdaa..16e0be0b8fb5535d495e9278879081b77b127fa0 100755
--- a/models/rank/dnn/config.yaml
+++ b/models/rank/dnn/config.yaml
@@ -23,9 +23,10 @@ train:
 
   reader:
     batch_size: 2
-    class: "{workspace}/../criteo_reader.py"
-    train_data_path: "{workspace}/data/train"
+    train_data_path: "{workspace}/data/slot_train_data"
     reader_debug_mode: False
+    sparse_slots: "click 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26"
+    dense_slots: "dense_var:13"
 
   model:
     models: "{workspace}/model.py"
diff --git a/models/rank/dnn/data/download.sh b/models/rank/dnn/data/download.sh
new file mode 100644
index 0000000000000000000000000000000000000000..56816f7d6be2227fbddafe49d3e24b1ef585a40c
--- /dev/null
+++ b/models/rank/dnn/data/download.sh
@@ -0,0 +1,13 @@
+wget --no-check-certificate https://fleet.bj.bcebos.com/ctr_data.tar.gz
+tar -zxvf ctr_data.tar.gz
+mv ./raw_data ./train_data_full
+mkdir train_data && cd train_data
+cp ../train_data_full/part-0 ../train_data_full/part-1 ./ && cd ..
+mv ./test_data ./test_data_full
+mkdir test_data && cd test_data
+cp ../test_data_full/part-220 ./  && cd ..
+echo "Complete data download."
+echo "Full Train data stored in ./train_data_full "
+echo "Full Test data stored in ./test_data_full "
+echo "Rapid Verification train data stored in ./train_data "
+echo "Rapid Verification test data stored in ./test_data "
diff --git a/models/rank/dnn/data/get_slot_data.py b/models/rank/dnn/data/get_slot_data.py
new file mode 100755
index 0000000000000000000000000000000000000000..30ad9884e5b3c4cd600e8273b9d061bfe1398c9e
--- /dev/null
+++ b/models/rank/dnn/data/get_slot_data.py
@@ -0,0 +1,69 @@
+#   Copyright (c) 2019 PaddlePaddle Authors. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import paddle.fluid.incubate.data_generator as dg
+
+cont_min_ = [0, -3, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]
+cont_max_ = [20, 600, 100, 50, 64000, 500, 100, 50, 500, 10, 10, 10, 50]
+cont_diff_ = [20, 603, 100, 50, 64000, 500, 100, 50, 500, 10, 10, 10, 50]
+hash_dim_ = 1000001
+continuous_range_ = range(1, 14)
+categorical_range_ = range(14, 40)
+
+
+class CriteoDataset(dg.MultiSlotDataGenerator):
+    """
+    DacDataset: inheritance MultiSlotDataGeneratior, Implement data reading
+    Help document: http://wiki.baidu.com/pages/viewpage.action?pageId=728820675
+    """
+
+    def generate_sample(self, line):
+        """
+        Read the data line by line and process it as a dictionary
+        """
+        def reader():
+            """
+            This function needs to be implemented by the user, based on data format
+            """
+            features = line.rstrip('\n').split('\t')
+            dense_feature = []
+            sparse_feature = []
+            for idx in continuous_range_:
+                if features[idx] == "":
+                    dense_feature.append(0.0)
+                else:
+                    dense_feature.append(
+                        (float(features[idx]) - cont_min_[idx - 1]) /
+                        cont_diff_[idx - 1])
+            for idx in categorical_range_:
+                sparse_feature.append(
+                    [hash(str(idx) + features[idx]) % hash_dim_])
+            label = [int(features[0])]
+            process_line = dense_feature, sparse_feature, label
+            feature_name = ["dense_feature"]
+            for idx in categorical_range_:
+                feature_name.append("C" + str(idx - 13))
+            feature_name.append("label")
+            s = "click:" + str(label[0])
+            for i in dense_feature:
+                s += " dense_feature:" + str(i) 
+            for i in range(1, 1 + len(categorical_range_)):
+                s += " " + str(i) + ":" + str(sparse_feature[i-1][0])
+            print s.strip()
+            yield None
+        return reader
+
+
+d = CriteoDataset()
+d.run_from_stdin()
diff --git a/models/rank/dnn/data/run.sh b/models/rank/dnn/data/run.sh
new file mode 100644
index 0000000000000000000000000000000000000000..f2d1fc9210d65e521cb7fa19cadab3ec95d95a31
--- /dev/null
+++ b/models/rank/dnn/data/run.sh
@@ -0,0 +1,25 @@
+sh download.sh
+
+mkdir slot_train_data_full
+for i in `ls ./train_data_full`
+do
+    cat train_data_full/$i | python get_slot_data.py > slot_train_data_full/$i
+done
+
+mkdir slot_test_data_full
+for i in `ls ./test_data_full`
+do
+    cat test_data_full/$i | python get_slot_data.py > slot_test_data_full/$i
+done
+
+mkdir slot_train_data
+for i in `ls ./train_data`
+do
+    cat train_data/$i | python get_slot_data.py > slot_train_data/$i
+done
+
+mkdir slot_test_data
+for i in `ls ./test_data`
+do
+    cat test_data/$i | python get_slot_data.py > slot_test_data/$i
+done
diff --git a/models/rank/dnn/data/test/sample_test.txt b/models/rank/dnn/data/test/sample_test.txt
deleted file mode 100755
index 3957a7ff04df61a450a8907d6f60e4f7d1ac2862..0000000000000000000000000000000000000000
--- a/models/rank/dnn/data/test/sample_test.txt
+++ /dev/null
@@ -1,100 +0,0 @@
-0	1	1	26	30	0	4	2	37	152	1	2		2	05db9164	38d50e09	ed5e4936	612ccfd4	25c83c98		38eb9cf4	1f89b562	a73ee510	2462946f	7f8ffe57	1d5d5b6e	46f42a63	b28479f6	7501d6be	6083e1d5	07c540c4	f855e3f0	21ddcdc9	5840adea	782e846e		32c7478e	b2f178a3	001f3601	c4304c4b
-0		20	3	4	40479	444	0	1	157		0		4	68fd1e64	09e68b86	aa8c1539	85dd697c	25c83c98	fe6b92e5	e56a4862	5b392875	a73ee510	3b08e48b	5e183c58	d8c29807	1eb0f8f0	8ceecbc8	d2f03b75	c64d548f	07c540c4	63cdbb21	cf99e5de	5840adea	5f957280		55dd3565	1793a828	e8b83407	b7d9c3bc
-0	6	70	1	22	312	25	52	44	144	1	3	1	22	05db9164	04e09220	b1ecc6c4	5dff9b29	4cf72387	7e0ccccf	d5f62b87	1f89b562	a73ee510	ce92c282	434d6c13	2436ff75	7301027a	07d13a8f	f6b23a53	f4ead43c	3486227d	6fc84bfb			4f1aa25f	c9d4222a	55dd3565	ded4aac9
-0	0	0	110	7	3251	44	1	32	39	0	1		31	05db9164	80e26c9b	ba1947d0	85dd697c	25c83c98		85f287b3	0b153874	a73ee510	89270478	7c53dc69	34a238e0	4fd35e8f	1adce6ef	0f942372	da441c7e	d4bb7bd8	005c6740	21ddcdc9	5840adea	8717ea07		423fab69	1793a828	e8b83407	9904c656
-0		0	29		19490			0						68fd1e64	287130e0	ba4559ea	33a72095	25c83c98	fbad5c96	ffdbd799	5b392875	a73ee510	60badee3	c72ca7a4	ebfb225c	b9be5035	cfef1c29	655fad18	a9dcda12	d4bb7bd8	891589e7	419b4cef	5840adea	76ef8858		32c7478e	135c8b41	ea9a246c	e3a60438
-0		2	2	20	43197		0	26	23		0		25	05db9164	9b6b8959	9c1c85e7	fd4d6dc3	25c83c98	7e0ccccf	d2d741ca	0b153874	a73ee510	4e2d1b78	ea4adb47	cc239583	05781932	64c94865	de781d57	efd92064	e5ba7672	cac48684			4b0ac19f	c9d4222a	3a171ecb	22dd4e42
-1	5	12			871	0	27	1	21	1	4	0		05db9164	e112a9de	29bb7bea	d3e15e1a	25c83c98	7e0ccccf	fd3483f3	0b153874	a73ee510	880e2781	9d7e66c3	bd5829ab	df957573	07d13a8f	290e3042	390b7737	8efede7f	808e7bc3			af16dda0	ad3062eb	423fab69	a0ab2ce0
-0		6	263	41	53		0	44	42		0		42	05db9164	71ca0a25	ad876a43	0481f0ba	4cf72387	7e0ccccf	bb0f47fb	5b392875	a73ee510	3b08e48b	da3f45ff	fde18531	a9fda8f5	07d13a8f	a8e0f0c6	06f4ae56	776ce399	9bf8ffef	21ddcdc9	5840adea	f5f07930		be7c41b4	62aa24c6	001f3601	1d5d3a57
-0		14			4301	48	2	3	51		2			68fd1e64	95e2d337	95c48c52	30b862e7	25c83c98	7e0ccccf	b06857f8	0b153874	a73ee510	8228dde1	e4eb05d4	f0d5cc59	a4c5d6dd	1adce6ef	559cd202	e9194f3c	07c540c4	7b06fafe	21ddcdc9	a458ea53	cb105f80		423fab69	16bb3de8	2bf691b1	d3b2f8c3
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\ No newline at end of file
diff --git a/models/rank/dnn/data/train/sample_train.txt b/models/rank/dnn/data/train/sample_train.txt
deleted file mode 100755
index 508e1ce997ea508dc5919a708140d36f803c6d1c..0000000000000000000000000000000000000000
--- a/models/rank/dnn/data/train/sample_train.txt
+++ /dev/null
@@ -1,100 +0,0 @@
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-0	0	2		1	1540	44	4	4	268	0	4		5	05db9164	68b3edbf	77f2f2e5	d16679b9	25c83c98	7e0ccccf	fcf0132a	1f89b562	a73ee510	aed3d80e	d650f1bd	9f32b866	863f8f8a	b28479f6	f511c49f	31ca40b6	e5ba7672	752d8b8a			dfcfc3fa		c7dc6720	aee52b6f		
-0	7	31		1	239	1	8	9	49	1	2	0	1	68fd1e64	8084ee93	d032c263	c18be181	43b19349	fe6b92e5	cee47266	0b153874	a73ee510	14781fa9	87fe3e10	dfbb09fb	3bd6c21d	b28479f6	16d2748c	84898b2a	27c07bd6	003d4f4f			0014c32a		32c7478e	3b183c5c		
-0		-1			12674	4	26	0	73		2			05db9164	09e68b86	eecaacb9	d268ac84	25c83c98	13718bbd	33cca6fa	0b153874	a73ee510	401ced54	683e14e9	ce76d69d	2b9fb512	b28479f6	52baadf5	7bf10350	e5ba7672	5aed7436	55dd3565	b1252a9d	3d7cfd1b		3a171ecb	3fdb382b	3d2bedd7	49d68486
-0		259	4		103468		0	0	14		0			05db9164	8947f767	d8ec4c68	ac1667dd	4cf72387	7e0ccccf	3527bb7c	0b153874	7cc72ec2	3b08e48b	2b9f131d	2a63b3ee	aca10c14	07d13a8f	2c14c412	11b43c2e	8efede7f	bd17c3da	21ddcdc9	a458ea53	79a05ba5		32c7478e	4fb9fee0	010f6491	004f1180
-1	3	145		4	108	6	4	4	31	1	2		4	8cf07265	6c2cbbdc	a42bd759	8b3b6b2e	25c83c98		f00bddf8	062b5529	a73ee510	0d538fca	55795b33	6bb7b021	39795005	64c94865	af094307	c3815fe3	e5ba7672	fb299884			987d0b7a		32c7478e	145ae095		
-1		147		1	159966		0	1	1		0		1	68fd1e64	38d50e09	c86b2d8d	657dc3b9	25c83c98	7e0ccccf	bc324536	1f89b562	7cc72ec2	474773a7	2bcfb78f	1ca7a526	e6fc496d	b28479f6	06373944	ba46c3a1	e5ba7672	fffe2a63	21ddcdc9	b1252a9d	eb0fc6f8	ad3062eb	32c7478e	df487a73	001f3601	c27f155b
\ No newline at end of file
diff --git a/models/rank/dnn/model.py b/models/rank/dnn/model.py
index 67bf61a04f0e93067f7a23fa3699ad08e6ce137f..3a61d288b40545619a49e81df1f6160670a6a0c1 100755
--- a/models/rank/dnn/model.py
+++ b/models/rank/dnn/model.py
@@ -25,43 +25,9 @@ class Model(ModelBase):
         ModelBase.__init__(self, config)
 
     def input(self):
-        def sparse_inputs():
-            ids = envs.get_global_env("hyper_parameters.sparse_inputs_slots", None, self._namespace)
-
-            sparse_input_ids = [
-                fluid.layers.data(name="S" + str(i),
-                                  shape=[1],
-                                  lod_level=1,
-                                  dtype="int64") for i in range(1, ids)
-            ]
-            return sparse_input_ids
-
-        def dense_input():
-            dim = envs.get_global_env("hyper_parameters.dense_input_dim", None, self._namespace)
-
-            dense_input_var = fluid.layers.data(name="D",
-                                                shape=[dim],
-                                                dtype="float32")
-            return dense_input_var
-
-        def label_input():
-            label = fluid.layers.data(name="click", shape=[1], dtype="int64")
-            return label
-
-        self.sparse_inputs = sparse_inputs()
-        self.dense_input = dense_input()
-        self.label_input = label_input()
-
-        self._data_var.append(self.dense_input)
-
-        for input in self.sparse_inputs:
-            self._data_var.append(input)
-
-        self._data_var.append(self.label_input)
-
-        if self._platform != "LINUX":
-            self._data_loader = fluid.io.DataLoader.from_generator(
-                feed_list=self._data_var, capacity=64, use_double_buffer=False, iterable=False)
+        self.sparse_inputs = self._sparse_data_var[1:]
+        self.dense_input = self._dense_data_var[0]
+        self.label_input = self._sparse_data_var[0]
 
     def net(self):
         is_distributed = True if envs.get_trainer() == "CtrTrainer" else False
@@ -122,6 +88,7 @@ class Model(ModelBase):
         self._metrics["BATCH_AUC"] = batch_auc
 
     def train_net(self):
+        self.model._init_slots()
         self.input()
         self.net()
         self.avg_loss()
@@ -133,5 +100,6 @@ class Model(ModelBase):
         return optimizer
 
     def infer_net(self):
+        self.model._init_slots()
         self.input()
         self.net()
diff --git a/models/rank/readme.md b/models/rank/readme.md
index ac75c89fdd6b2d734aec8c8e8408f9036753d4ec..31b08d36a8fbd82a668d63ff21b2e9c77179c000 100755
--- a/models/rank/readme.md
+++ b/models/rank/readme.md
@@ -59,6 +59,11 @@
 ## 使用教程
 ### 数据处理
 参考每个模型目录数据下载&预处理脚本
+
+```
+sh run.sh
+```
+
 ### 训练
 ```
 python -m paddlerec.run -m paddlerec.models.rank.dnn # 以DNN为例
diff --git a/models/rank/wide_deep/config.yaml b/models/rank/wide_deep/config.yaml
index 916561dadf610e42462b007462506e6b4f9108e4..3babdddb3ab777a6f48a33894bf3ef2a79311cf9 100755
--- a/models/rank/wide_deep/config.yaml
+++ b/models/rank/wide_deep/config.yaml
@@ -22,8 +22,9 @@ train:
 
   reader:
     batch_size: 2
-    class: "{workspace}/reader.py"
-    train_data_path: "{workspace}/data/train_data"
+    train_data_path: "{workspace}/data/slot_train_data"
+    sparse_slots: "label"
+    dense_slots: "wide_input:8 deep_input:58"
 
   model:
     models: "{workspace}/model.py"
diff --git a/models/rank/wide_deep/create_data.sh b/models/rank/wide_deep/create_data.sh
deleted file mode 100755
index 3e5e2f4ef3ea38652302d81ef3441ce5e6f0e838..0000000000000000000000000000000000000000
--- a/models/rank/wide_deep/create_data.sh
+++ /dev/null
@@ -1,17 +0,0 @@
-mkdir train_data
-mkdir test_data
-mkdir data
-train_path="/home/yaoxuefeng/repos/models/models/PaddleRec/ctr/wide_deep/data/adult.data"
-test_path="/home/yaoxuefeng/repos/models/models/PaddleRec/ctr/wide_deep/data/adult.test"
-train_data_path="/home/yaoxuefeng/repos/models/models/PaddleRec/ctr/wide_deep/train_data/train_data.csv"
-test_data_path="/home/yaoxuefeng/repos/models/models/PaddleRec/ctr/wide_deep/test_data/test_data.csv"
-
-#pip install -r requirements.txt
-
-#wget -P data/ https://archive.ics.uci.edu/ml/machine-learning-databases/adult/adult.data
-#wget -P data/ https://archive.ics.uci.edu/ml/machine-learning-databases/adult/adult.test
-
-python data_preparation.py --train_path ${train_path} \
-                           --test_path ${test_path} \
-                           --train_data_path ${train_data_path}\
-                           --test_data_path ${test_data_path}
diff --git a/models/rank/wide_deep/data/create_data.sh b/models/rank/wide_deep/data/create_data.sh
new file mode 100755
index 0000000000000000000000000000000000000000..daf60cea46562a3d910177f509d51d261d69cf1d
--- /dev/null
+++ b/models/rank/wide_deep/data/create_data.sh
@@ -0,0 +1,16 @@
+mkdir train_data
+mkdir test_data
+train_path="adult.data"
+test_path="adult.test"
+train_data_path="./train_data/train_data.csv"
+test_data_path="./test_data/test_data.csv"
+
+pip install -r requirements.txt
+
+wget -P data/ https://archive.ics.uci.edu/ml/machine-learning-databases/adult/adult.data
+wget -P data/ https://archive.ics.uci.edu/ml/machine-learning-databases/adult/adult.test
+
+python data_preparation.py --train_path ${train_path} \
+                           --test_path ${test_path} \
+                           --train_data_path ${train_data_path}\
+                           --test_data_path ${test_data_path}
diff --git a/models/rank/wide_deep/data/data_preparation.py b/models/rank/wide_deep/data/data_preparation.py
new file mode 100644
index 0000000000000000000000000000000000000000..cdd8d4d7817e8312fe76f4038c6554eb557a2ff1
--- /dev/null
+++ b/models/rank/wide_deep/data/data_preparation.py
@@ -0,0 +1,104 @@
+import os
+import io
+import args
+import pandas as pd
+from sklearn import  preprocessing
+
+def _clean_file(source_path,target_path):
+    """makes changes to match the CSV format."""
+    with io.open(source_path, 'r') as temp_eval_file:
+        with io.open(target_path, 'w') as eval_file:
+            for line in temp_eval_file:
+                line = line.strip()
+                line = line.replace(', ', ',')
+                if not line or ',' not in line:
+                    continue
+                if line[-1] == '.':
+                    line = line[:-1]
+                line += '\n'
+                eval_file.write(line)
+                    
+def build_model_columns(train_data_path, test_data_path):
+    # The column names are from
+    # https://www2.1010data.com/documentationcenter/prod/Tutorials/MachineLearningExamples/CensusIncomeDataSet.html
+    column_names = [
+    'age', 'workclass', 'fnlwgt', 'education', 'education_num',
+    'marital_status', 'occupation', 'relationship', 'race', 'gender',
+    'capital_gain', 'capital_loss', 'hours_per_week', 'native_country',
+    'income_bracket'
+    ]
+
+    # Load the dataset in Pandas
+    train_df = pd.read_csv(
+        train_data_path,
+        delimiter=',',
+        header=None,
+        index_col=None,
+        names=column_names)
+    test_df = pd.read_csv(
+        test_data_path,
+        delimiter=',',
+        header=None,
+        index_col=None,
+        names=column_names)
+
+    # First group of tasks according to the paper
+    #label_columns = ['income_50k', 'marital_stat']
+    categorical_columns = ['education','marital_status','relationship','workclass','occupation']
+    for col in categorical_columns:
+        label_train = preprocessing.LabelEncoder()
+        train_df[col]= label_train.fit_transform(train_df[col])
+        label_test = preprocessing.LabelEncoder()
+        test_df[col]= label_test.fit_transform(test_df[col])
+    
+    bins = [18, 25, 30, 35, 40, 45, 50, 55, 60, 65]  
+    train_df['age_buckets'] = pd.cut(train_df['age'].values.tolist(), bins,labels=False)
+    test_df['age_buckets'] = pd.cut(test_df['age'].values.tolist(), bins,labels=False)
+    
+    base_columns = ['education', 'marital_status', 'relationship', 'workclass', 'occupation', 'age_buckets']
+    
+    train_df['education_occupation'] = train_df['education'].astype(str) + '_' + train_df['occupation'].astype(str)    
+    test_df['education_occupation'] = test_df['education'].astype(str) + '_' + test_df['occupation'].astype(str)
+    train_df['age_buckets_education_occupation'] = train_df['age_buckets'].astype(str) + '_' + train_df['education'].astype(str) + '_' + train_df['occupation'].astype(str)
+    test_df['age_buckets_education_occupation'] = test_df['age_buckets'].astype(str) + '_' + test_df['education'].astype(str) + '_' + test_df['occupation'].astype(str)
+    crossed_columns = ['education_occupation','age_buckets_education_occupation']
+    
+    for col in crossed_columns:
+        label_train = preprocessing.LabelEncoder()
+        train_df[col]= label_train.fit_transform(train_df[col])
+        label_test = preprocessing.LabelEncoder()
+        test_df[col]= label_test.fit_transform(test_df[col])
+        
+    wide_columns = base_columns + crossed_columns
+    
+    train_df_temp = pd.get_dummies(train_df[categorical_columns],columns=categorical_columns)
+    test_df_temp = pd.get_dummies(test_df[categorical_columns], columns=categorical_columns)
+    train_df = train_df.join(train_df_temp)
+    test_df = test_df.join(test_df_temp)
+    
+    deep_columns = list(train_df_temp.columns)+ ['age','education_num','capital_gain','capital_loss','hours_per_week']
+    
+    train_df['label'] = train_df['income_bracket'].apply(lambda x : 1 if x == '>50K' else 0)
+    test_df['label'] = test_df['income_bracket'].apply(lambda x : 1 if x == '>50K' else 0)
+    
+    with io.open('train_data/columns.txt','w') as f:
+        write_str = str(len(wide_columns)) + '\n' + str(len(deep_columns)) + '\n'
+        f.write(write_str)
+        f.close()
+    with io.open('test_data/columns.txt','w') as f:
+        write_str = str(len(wide_columns)) + '\n' + str(len(deep_columns)) + '\n'
+        f.write(write_str)
+        f.close()
+    
+    train_df[wide_columns + deep_columns + ['label']].fillna(0).to_csv(train_data_path,index=False)
+    test_df[wide_columns + deep_columns + ['label']].fillna(0).to_csv(test_data_path,index=False)
+
+
+def clean_file(train_path, test_path, train_data_path, test_data_path):
+    _clean_file(train_path, train_data_path)
+    _clean_file(test_path, test_data_path)
+
+if __name__ == '__main__':
+    args = args.parse_args()
+    clean_file(args.train_path, args.test_path, args.train_data_path, args.test_data_path)  
+    build_model_columns(args.train_data_path, args.test_data_path)
diff --git a/models/rank/wide_deep/reader.py b/models/rank/wide_deep/data/get_slot_data.py
similarity index 60%
rename from models/rank/wide_deep/reader.py
rename to models/rank/wide_deep/data/get_slot_data.py
index f783ad2fb7f386e48af569062286a9afaa9dbe90..b928ae1267113215aa2b71f8dccffddc0db048fb 100755
--- a/models/rank/wide_deep/reader.py
+++ b/models/rank/wide_deep/data/get_slot_data.py
@@ -11,18 +11,25 @@
 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 # See the License for the specific language governing permissions and
 # limitations under the License.
-
-from __future__ import print_function
-
+import yaml
+from paddlerec.core.reader import Reader
+from paddlerec.core.utils import envs
 try:
     import cPickle as pickle
 except ImportError:
     import pickle
+import paddle.fluid.incubate.data_generator as dg
 
-from paddlerec.core.reader import Reader
+class TrainReader(dg.MultiSlotDataGenerator):
+    def __init__(self, config):
+        dg.MultiSlotDataGenerator.__init__(self)
 
+        if os.path.isfile(config):
+            with open(config, 'r') as rb:
+                _config = yaml.load(rb.read(), Loader=yaml.FullLoader)
+        else:
+            raise ValueError("reader config only support yaml")
 
-class TrainReader(Reader):
     def init(self):
         pass
 
@@ -41,6 +48,18 @@ class TrainReader(Reader):
 
         def data_iter():
             wide_feat, deep_deat, label = self._process_line(line)
-            yield [('wide_input', wide_feat), ('deep_input', deep_deat), ('label', label)]
+
+            s = ""
+            for i in [('wide_input', wide_feat), ('deep_input', deep_deat), ('label', label)]:
+                k = i[0]
+                v = i[1]
+                for j in v:
+                    s += " " + k + ":" + str(j)
+            print s.strip()
+            yield None
 
         return data_iter
+
+reader = TrainReader("../config.yaml")
+reader.init()
+reader.run_from_stdin()
diff --git a/models/rank/wide_deep/data/run.sh b/models/rank/wide_deep/data/run.sh
new file mode 100644
index 0000000000000000000000000000000000000000..7b4fb8492a05769377f388faece9e0dc0a82c6c0
--- /dev/null
+++ b/models/rank/wide_deep/data/run.sh
@@ -0,0 +1,13 @@
+sh create_data.sh
+
+mkdir slot_train_data
+for i in `ls ./train_data`
+do
+    cat train_data/$i | python get_slot_data.py > slot_train_data/$i
+done
+
+mkdir slot_test_data
+for i in `ls ./test_data`
+do
+    cat test_data/$i | python get_slot_data.py > slot_test_data/$i
+done
diff --git a/models/rank/wide_deep/model.py b/models/rank/wide_deep/model.py
index 2e932023b157d4a20f13b5e6637960e399a7d235..27eb5e1f0c1588d7634407a3dcd250726dea28bb 100755
--- a/models/rank/wide_deep/model.py
+++ b/models/rank/wide_deep/model.py
@@ -57,12 +57,10 @@ class Model(ModelBase):
         return l3
 
     def train_net(self):
-        wide_input = fluid.data(name='wide_input', shape=[None, 8], dtype='float32')
-        deep_input = fluid.data(name='deep_input', shape=[None, 58], dtype='float32')
-        label = fluid.data(name='label', shape=[None, 1], dtype='float32')
-        self._data_var.append(wide_input)
-        self._data_var.append(deep_input)
-        self._data_var.append(label)
+        self.model._init_slots()
+        wide_input = self._dense_data_var[0]
+        deep_input = self._dense_data_var[1]
+        label = self._sparse_data_var[0]
 
         hidden1_units = envs.get_global_env("hyper_parameters.hidden1_units", 75, self._namespace)
         hidden2_units = envs.get_global_env("hyper_parameters.hidden2_units", 50, self._namespace)
@@ -95,7 +93,7 @@ class Model(ModelBase):
         self._metrics["BATCH_AUC"] = batch_auc
         self._metrics["ACC"] = acc
 
-        cost = fluid.layers.sigmoid_cross_entropy_with_logits(x=prediction, label=label)
+        cost = fluid.layers.sigmoid_cross_entropy_with_logits(x=prediction, label=fluid.layers.cast(label, dtype='float32')) 
         avg_cost = fluid.layers.mean(cost)
         self._cost = avg_cost
 
@@ -105,4 +103,5 @@ class Model(ModelBase):
         return optimizer
 
     def infer_net(self, parameter_list):
+        self.model._init_slots()
         self.deepfm_net()
diff --git a/models/rank/xdeepfm/config.yaml b/models/rank/xdeepfm/config.yaml
index 029ef394adc69717e6ad5579a7f95848035d7b71..5f60a141a38ab388688a24da2ea153c2b576ccaa 100755
--- a/models/rank/xdeepfm/config.yaml
+++ b/models/rank/xdeepfm/config.yaml
@@ -22,8 +22,9 @@ train:
 
   reader:
     batch_size: 2
-    class: "{workspace}/criteo_reader.py"
-    train_data_path: "{workspace}/data/train_data"
+    train_data_path: "{workspace}/data/slot_train_data"
+    sparse_slots: "label feat_idx"
+    dense_slots: "feat_value:39"
 
   model:
     models: "{workspace}/model.py"
diff --git a/models/rank/xdeepfm/criteo_reader.py b/models/rank/xdeepfm/data/get_slot_data.py
similarity index 60%
rename from models/rank/xdeepfm/criteo_reader.py
rename to models/rank/xdeepfm/data/get_slot_data.py
index fe4542d5d46227a0b6eaa4a96737216bd68628a4..d71444135c2198b426638bc4b2665ec053acb2aa 100755
--- a/models/rank/xdeepfm/criteo_reader.py
+++ b/models/rank/xdeepfm/data/get_slot_data.py
@@ -12,17 +12,24 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from __future__ import print_function
-
+import yaml
+from paddlerec.core.reader import Reader
+from paddlerec.core.utils import envs
 try:
     import cPickle as pickle
 except ImportError:
     import pickle
+import paddle.fluid.incubate.data_generator as dg
 
-from paddlerec.core.reader import Reader
-
+class TrainReader(dg.MultiSlotDataGenerator):
+    def __init__(self, config):
+        dg.MultiSlotDataGenerator.__init__(self)
+        if os.path.isfile(config):
+            with open(config, 'r') as rb:
+                _config = yaml.load(rb.read(), Loader=yaml.FullLoader)
+        else:
+            raise ValueError("reader config only support yaml")
 
-class TrainReader(Reader):
     def init(self):
         pass
 
@@ -39,7 +46,18 @@ class TrainReader(Reader):
     def generate_sample(self, line):
         def data_iter():
             feat_idx, feat_value, label = self._process_line(line)
-            yield [('feat_idx', feat_idx), ('feat_value', feat_value), ('label',
-                                                                        label)]
+
+            s = ""
+            for i in [('feat_idx', feat_idx), ('feat_value', feat_value), ('label', label)]:
+                k = i[0]
+                v = i[1]
+                for j in v:
+                    s += " " + k + ":" + str(j)
+            print s.strip()
+            yield None
 
         return data_iter
+
+reader = TrainReader("../config.yaml")
+reader.init()
+reader.run_from_stdin()
diff --git a/models/rank/xdeepfm/data/run.sh b/models/rank/xdeepfm/data/run.sh
new file mode 100644
index 0000000000000000000000000000000000000000..e0e6780632153cd53b4de329b5500f944035b70a
--- /dev/null
+++ b/models/rank/xdeepfm/data/run.sh
@@ -0,0 +1,13 @@
+python download.py
+
+mkdir -p slot_train_data/tr
+for i in `ls ./train_data/tr`
+do
+    cat train_data/tr/$i | python get_slot_data.py > slot_train_data/tr/$i
+done
+
+mkdir slot_test_data/ev
+for i in `ls ./test_data/ev`
+do
+    cat test_data/ev/$i | python get_slot_data.py > slot_test_data/ev/$i
+done
diff --git a/models/rank/xdeepfm/model.py b/models/rank/xdeepfm/model.py
index 213c29b5acdcdb0dd26303b52858e1a8e28073e7..059e83d40290d713e9bc5f25f59fbb285e5a855a 100755
--- a/models/rank/xdeepfm/model.py
+++ b/models/rank/xdeepfm/model.py
@@ -34,10 +34,11 @@ class Model(ModelBase):
         # ------------------------- network input --------------------------
 
         num_field = envs.get_global_env("hyper_parameters.num_field", None, self._namespace)
-        raw_feat_idx = fluid.data(name='feat_idx', shape=[None, num_field], dtype='int64')
-        raw_feat_value = fluid.data(name='feat_value', shape=[None, num_field], dtype='float32')
-        self.label = fluid.data(name='label', shape=[None, 1], dtype='float32')  # None * 1
-        feat_idx = fluid.layers.reshape(raw_feat_idx, [-1, 1])  # (None * num_field) * 1
+        raw_feat_idx = self._sparse_data_var[1]
+        raw_feat_value = self._dense_data_var[0]
+        self.label = self._sparse_data_var[0]
+
+        feat_idx = raw_feat_idx
         feat_value = fluid.layers.reshape(raw_feat_value, [-1, num_field, 1])  # None * num_field * 1
 
         feat_embeddings = fluid.embedding(
@@ -52,15 +53,6 @@ class Model(ModelBase):
             [-1, num_field, sparse_feature_dim])  # None * num_field * embedding_size
         feat_embeddings = feat_embeddings * feat_value  # None * num_field * embedding_size
 
-        # ------------------------- set _data_var --------------------------
-
-        self._data_var.append(raw_feat_idx)
-        self._data_var.append(raw_feat_value)
-        self._data_var.append(self.label)
-        if self._platform != "LINUX":
-            self._data_loader = fluid.io.DataLoader.from_generator(
-                feed_list=self._data_var, capacity=64, use_double_buffer=False, iterable=False)
-
         # -------------------- linear  --------------------
 
         weights_linear = fluid.embedding(
@@ -153,9 +145,10 @@ class Model(ModelBase):
         self.predict = fluid.layers.sigmoid(y_linear + y_cin + y_dnn)
 
     def train_net(self):
+        self.model._init_slots()
         self.xdeepfm_net()
 
-        cost = fluid.layers.log_loss(input=self.predict, label=self.label, epsilon=0.0000001)
+        cost = fluid.layers.log_loss(input=self.predict, label=fluid.layers.cast(self.label, "float32"), epsilon=0.0000001)
         batch_cost = fluid.layers.reduce_mean(cost)
         self._cost = batch_cost
 
@@ -174,4 +167,5 @@ class Model(ModelBase):
         return optimizer
 
     def infer_net(self, parameter_list):
+        self.model._init_slots()
         self.xdeepfm_net()