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体验新版 GitCode,发现更多精彩内容 >>
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3c84ebec
编写于
11月 10, 2017
作者:
Y
yangyaming
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电子邮件补丁
差异文件
IndicateDataType --> GetKernelType
上级
40367d18
变更
1
隐藏空白更改
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1 changed file
with
15 addition
and
14 deletion
+15
-14
paddle/operators/chunk_eval_op.cc
paddle/operators/chunk_eval_op.cc
+15
-14
未找到文件。
paddle/operators/chunk_eval_op.cc
浏览文件 @
3c84ebec
...
...
@@ -45,9 +45,10 @@ class ChunkEvalOp : public framework::OperatorWithKernel {
}
protected:
framework
::
DataType
IndicateData
Type
(
framework
::
OpKernelType
GetKernel
Type
(
const
framework
::
ExecutionContext
&
ctx
)
const
override
{
return
framework
::
DataType
::
FP32
;
return
framework
::
OpKernelType
(
framework
::
DataType
::
FP32
,
ctx
.
device_context
());
}
};
...
...
@@ -82,12 +83,12 @@ class ChunkEvalOpMaker : public framework::OpProtoAndCheckerMaker {
"See below for details."
)
.
SetDefault
(
std
::
vector
<
int
>
{});
AddComment
(
R"DOC(
For some basics of chunking, please refer to
For some basics of chunking, please refer to
‘Chunking with Support Vector Mechines <https://aclanthology.info/pdf/N/N01/N01-1025.pdf>’.
CheckEvalOp computes the precision, recall, and F1-score of chunk detection,
and supports IOB, IOE, IOBES and IO (also known as plain) tagging schemes.
CheckEvalOp computes the precision, recall, and F1-score of chunk detection,
and supports IOB, IOE, IOBES and IO (also known as plain) tagging schemes.
Here is a NER example of labeling for these tagging schemes:
Li Ming works at Agricultural Bank of China in Beijing.
...
...
@@ -96,17 +97,17 @@ Here is a NER example of labeling for these tagging schemes:
IOE: I-PER E-PER O O I-ORG I-ORG I-ORG E-ORG O E-LOC
IOBES: B-PER E-PER O O I-ORG I-ORG I-ORG E-ORG O S-LOC
There are three chunk types(named entity types) including PER(person), ORG(orgnazation)
There are three chunk types(named entity types) including PER(person), ORG(orgnazation)
and LOC(LOCATION), and we can see that the labels have the form <tag type>-<chunk type>.
Since the calculations actually use label ids rather than labels, extra attention
should be paid when mapping labels to ids to make CheckEvalOp work. The key point
is that the listed equations are satisfied by ids.
Since the calculations actually use label ids rather than labels, extra attention
should be paid when mapping labels to ids to make CheckEvalOp work. The key point
is that the listed equations are satisfied by ids.
tag_type = label % num_tag_type
chunk_type = label / num_tag_type
where `num_tag_type` is the num of tag types in the tagging scheme, `num_chunk_type`
where `num_tag_type` is the num of tag types in the tagging scheme, `num_chunk_type`
is the num of chunk types, and `tag_type` get its value from the following table.
Scheme Begin Inside End Single
...
...
@@ -115,7 +116,7 @@ is the num of chunk types, and `tag_type` get its value from the following table
IOE - 0 1 -
IOBES 0 1 2 3
Still use NER as example, assuming the tagging scheme is IOB while chunk types are ORG,
Still use NER as example, assuming the tagging scheme is IOB while chunk types are ORG,
PER and LOC. To satisfy the above equations, the label map can be like this:
B-ORG 0
...
...
@@ -126,9 +127,9 @@ PER and LOC. To satisfy the above equations, the label map can be like this:
I-LOC 5
O 6
It’s not hard to verify the equations noting that the num of chunk types
is 3 and the num of tag types in IOB scheme is 2. For example, the label
id of I-LOC is 5, the tag type id of I-LOC is 1, and the chunk type id of
It’s not hard to verify the equations noting that the num of chunk types
is 3 and the num of tag types in IOB scheme is 2. For example, the label
id of I-LOC is 5, the tag type id of I-LOC is 1, and the chunk type id of
I-LOC is 2, which consistent with the results from the equations.
)DOC"
);
}
...
...
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