Reserve a data! O Google I / O retorna de 18 a 20 de maio

# tf.slice

Extracts a slice from a tensor.

This operation extracts a slice of size `size` from a tensor `input_` starting at the location specified by `begin`. The slice `size` is represented as a tensor shape, where `size[i]` is the number of elements of the 'i'th dimension of `input_` that you want to slice. The starting location (`begin`) for the slice is represented as an offset in each dimension of `input_`. In other words, `begin[i]` is the offset into the i'th dimension of `input_` that you want to slice from.

Note that `tf.Tensor.getitem` is typically a more pythonic way to perform slices, as it allows you to write `foo[3:7, :-2]` instead of `tf.slice(foo, [3, 0], [4, foo.get_shape()[1]-2])`.

`begin` is zero-based; `size` is one-based. If `size[i]` is -1, all remaining elements in dimension i are included in the slice. In other words, this is equivalent to setting:

`size[i] = input_.dim_size(i) - begin[i]`

This operation requires that:

`0 <= begin[i] <= begin[i] + size[i] <= Di for i in [0, n]`

#### For example:

``````t = tf.constant([[[1, 1, 1], [2, 2, 2]],
[[3, 3, 3], [4, 4, 4]],
[[5, 5, 5], [6, 6, 6]]])
tf.slice(t, [1, 0, 0], [1, 1, 3])  # [[[3, 3, 3]]]
tf.slice(t, [1, 0, 0], [1, 2, 3])  # [[[3, 3, 3],
#   [4, 4, 4]]]
tf.slice(t, [1, 0, 0], [2, 1, 3])  # [[[3, 3, 3]],
#  [[5, 5, 5]]]
``````

`input_` A `Tensor`.
`begin` An `int32` or `int64` `Tensor`.
`size` An `int32` or `int64` `Tensor`.
`name` A name for the operation (optional).

A `Tensor` the same type as `input_`.

[{ "type": "thumb-down", "id": "missingTheInformationINeed", "label":"Não contém as informações de que eu preciso" },{ "type": "thumb-down", "id": "tooComplicatedTooManySteps", "label":"Muito complicado / etapas demais" },{ "type": "thumb-down", "id": "outOfDate", "label":"Desatualizado" },{ "type": "thumb-down", "id": "samplesCodeIssue", "label":"Samples / code issue" },{ "type": "thumb-down", "id": "otherDown", "label":"Outro" }]
[{ "type": "thumb-up", "id": "easyToUnderstand", "label":"Fácil de entender" },{ "type": "thumb-up", "id": "solvedMyProblem", "label":"Meu problema foi resolvido" },{ "type": "thumb-up", "id": "otherUp", "label":"Outro" }]