Merge pull request !1807 from ZiruiWu/ngram_dev

Merge pull request !1808 from Jamie/numsamples

Merge pull request !1823 from jiangjinsheng/vm_ConfusionMatrix

Merge pull request !1819 from zhangbuxue/restricting_modify_non-Parameter_class_members

updates

more update

more work

more fixin

post rebase updates

clang formatting

code review recovery

ci fixes

updates

update

update

update

Merge pull request !1806 from Tinazhang/random-crop-error-msg

Merge pull request !1804 from wangqiuliang/add-tensor-compare-len-consexpr-feature

Merge pull request !1713 from luoyang/pylint

Merge pull request !1769 from lichen/gatherv2_support_host_and_device

Merge pull request !1766 from vlne-v1/I1J0M0-amp-do-auto-cast-failed

Merge pull request !1697 from chenhaozhe/bert-optimization

Merge pull request !1762 from zhangbuxue/support_convert_bool_scalar_and_tensor_to_number_tensor

Merge pull request !1685 from Xiaoda/fix-the-embeddinglookup-bug

Merge pull request !1750 from zhouneng/add_vm_support_for_expm1

Merge pull request !1695 from liuwenhao/master

Merge pull request !1682 from liuxiao/SparseApplyProximalAdagradD-SparseApplyFtrlD-ApplyProximalAdagradD

Merge pull request !1518 from zhouneng/add_vm_support_Atan_AtanGrad_Atanh

Merge pull request !1712 from yihuaijie/master

Merge pull request !1631 from yangjie159/fix_reviewbot_of_mem_reuse

Merge pull request !1528 from jiangjinsheng/vm_bessel

Merge pull request !1532 from jinyaohui/pylint1

Merge pull request !1501 from zhouneng/add_vm_support

Merge pull request !1638 from Peilin/splitOp-after-testing

Merge pull request !1703 from EricZ/master

Merge pull request !1704 from Peilin/fix-random-sampler-bug

Added broken test case for cv

Fixed error handling in sync_wait

Merge pull request !1544 from MahdiRahmaniHanzaki/I1IHNG-ten-crop

Merge pull request !1636 from Tinazhang/randomGray