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[Bugfix][Frontend][TF] Fix incorrect calculations in tf SLICE - #4518
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inadob
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Dec 13, 2019
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@kevinthesun@FrozenGene can you please review this patch |
| def test_forward_slice(): | ||
| _test_forward_slice_operation_input([1, 1], 0, 2) | ||
| _test_forward_slice_operation_input([1, 1], [0], [2]) |
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Is it better to add below lines inside _test_forward_slice_operation_input to also accept begin_value, size_value input as a single int?
begin_value = [begin_value] if isinstance(begin_value, int) else begin_value
size_value = [size_value] if isinstance(size_value, int) else size_value
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Well, in the TF documentation is said that tf.slice() arguments begin & size both should be tensors. I am aware that the scalars are 0D tensors but if the TF function, in general, doesn't accept scalars, then from my point of view, it doesn't make sense to test something that is not supposed to work like this.
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* fix formula for calculating end indices when size[i] == -1 * add a test case for size[i] == -1 * discard expanding dimension of begin_value & end_value since it is needed only if you pass them as scalars not as tensors. * discard 'slice_tensor' variable so that implementation matches the tf parser pattern
kevinthesun
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Jan 24, 2020
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Thanks @optima2005@inadob |
alexwong pushed a commit
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Feb 26, 2020
…#4518) * fix formula for calculating end indices when size[i] == -1 * add a test case for size[i] == -1 * discard expanding dimension of begin_value & end_value since it is needed only if you pass them as scalars not as tensors. * discard 'slice_tensor' variable so that implementation matches the tf parser pattern
alexwong pushed a commit
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Feb 28, 2020
…#4518) * fix formula for calculating end indices when size[i] == -1 * add a test case for size[i] == -1 * discard expanding dimension of begin_value & end_value since it is needed only if you pass them as scalars not as tensors. * discard 'slice_tensor' variable so that implementation matches the tf parser pattern
zhiics pushed a commit
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Mar 2, 2020
…#4518) * fix formula for calculating end indices when size[i] == -1 * add a test case for size[i] == -1 * discard expanding dimension of begin_value & end_value since it is needed only if you pass them as scalars not as tensors. * discard 'slice_tensor' variable so that implementation matches the tf parser pattern
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it is needed only if you pass them as scalars, not as tensors. [Relay][Frontend][TF] Fix slice when begin or size is not Const #4372
the TF parser pattern