Merge pull request !5188 from tony_liu2/alt

Merge pull request !4477 from tony_liu2/staging

Merge pull request !4901 from EricZ/md_helper

Merge pull request !5385 from cathwong/ckw_dataset_ut_cleanup8

Merge pull request !5094 from h.farahat/master

Merge pull request !5480 from zhengjun10/master

Merge pull request !5607 from guozhijian/fix_model_zoo_format

Merge pull request !5438 from wangqiuliang/support-parameter-tuple-input

Merge pull request !5354 from xiefangqi/fix_randomdata_columnlist

Merge pull request !5576 from fary86/simplify_context_implementation

Merge pull request !4877 from MahdiRahmaniHanzaki/bucket_batch_by_length_c

Merge pull request !5600 from chenjianping/lite_dev2

Merge pull request !5573 from fanglei/graphclone

Merge pull request !5602 from XunDeng/pp_issue_branch

Merge pull request !5582 from yangzhenzhang/update-check-strategy-value

Merge pull request !5584 from shibeiji/master

Merge pull request !5586 from BowenK/performance

Merge pull request !5601 from panfengfeng/fix_shufflenet_scripts

Merge pull request !5590 from ZPaC/master-fix-server-shard-method

Merge pull request !5585 from YuJianfeng/depend_valid_input

Merge pull request !5545 from 徐安越/master

Merge pull request !5588 from liuzhongkai/activation1_fp16

Merge pull request !5488 from zhangbuxue/add_check_tensor_before_compile_graph

Merge pull request !5593 from liuwenhao/master

Merge pull request !5553 from zhouyaqiang0/master

Merge pull request !5314 from liuxiao93/implicit-conversion-api

Merge pull request !5574 from lihongkang/lhk_master

Merge pull request !5583 from sunsuodong/fix_concat_slice