wehub-resource-sync
105 lines
3.4 KiB
Python
105 lines
3.4 KiB
Python
# Copyright (c) 2021 PaddlePaddle Authors. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from __future__ import annotations
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from typing import Any
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from paddle.base import core
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__all__ = []
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class Index:
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def __init__(self, name: str) -> None:
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self._name = name
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class TreeIndex(Index):
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def __init__(self, name: str, path: str) -> None:
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super().__init__(name)
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self._wrapper = core.IndexWrapper()
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self._wrapper.insert_tree_index(name, path)
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self._tree = self._wrapper.get_tree_index(name)
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self._height = self._tree.height()
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self._branch = self._tree.branch()
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self._total_node_nums = self._tree.total_node_nums()
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self._emb_size = self._tree.emb_size()
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self._layerwise_sampler = None
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def height(self) -> int:
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return self._height
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def branch(self) -> int:
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return self._branch
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def total_node_nums(self) -> int:
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return self._total_node_nums
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def emb_size(self) -> int:
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return self._emb_size
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def get_all_leaves(self) -> list[Any]:
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return self._tree.get_all_leaves()
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def get_nodes(self, codes: list[int]) -> list[Any]:
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return self._tree.get_nodes(codes)
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def get_layer_codes(self, level: int) -> list[int]:
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return self._tree.get_layer_codes(level)
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def get_travel_codes(self, id: int, start_level: int = 0) -> list[int]:
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return self._tree.get_travel_codes(id, start_level)
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def get_ancestor_codes(self, ids: list[int], level: int) -> list[int]:
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return self._tree.get_ancestor_codes(ids, level)
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def get_children_codes(self, ancestor: int, level: int) -> list[int]:
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return self._tree.get_children_codes(ancestor, level)
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def get_travel_path(self, child: int, ancestor: int) -> list[int]:
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res = []
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while child > ancestor:
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res.append(child)
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child = int((child - 1) / self._branch)
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return res
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def get_pi_relation(self, ids: list[int], level: int) -> dict[int, int]:
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codes = self.get_ancestor_codes(ids, level)
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return dict(zip(ids, codes))
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def init_layerwise_sampler(
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self,
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layer_sample_counts: list[int],
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start_sample_layer: int = 1,
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seed: int = 0,
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) -> None:
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assert self._layerwise_sampler is None
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self._layerwise_sampler = core.IndexSampler("by_layerwise", self._name)
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self._layerwise_sampler.init_layerwise_conf(
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layer_sample_counts, start_sample_layer, seed
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)
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def layerwise_sample(
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self,
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user_input: list[list[int]],
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index_input: list[int],
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with_hierarchy: bool = False,
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) -> list[list[int]]:
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if self._layerwise_sampler is None:
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raise ValueError("please init layerwise_sampler first.")
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return self._layerwise_sampler.sample(
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user_input, index_input, with_hierarchy
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)
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