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Delete indexer.py
Browse files- indexer.py +0 -64
indexer.py
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import pickle
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import faiss
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import numpy as np
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# from grammar import remove_verbs, clean_text
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from utils import *
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from sentence_transformers import SentenceTransformer
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class FAISS:
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def __init__(self, dimensions: int):
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self.dimensions = dimensions
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self.index = faiss.IndexFlatL2(dimensions)
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self.vectors = {}
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self.counter = 0
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self.model_name = 'paraphrase-multilingual-MiniLM-L12-v2'
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self.sentence_encoder = SentenceTransformer(self.model_name)
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def init_vectors(self, path):
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with open(path, 'rb') as pkl_file:
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self.vectors = pickle.load(pkl_file)
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def init_index(self, path):
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self.index = faiss.read_index(path)
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def add(self, text, idx, pop, emb=None):
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if emb is None:
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text_vec = self.sentence_encoder.encode([text])
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else:
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text_vec = emb
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self.index.add(text_vec)
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self.vectors[self.counter] = (idx, text, pop, text_vec)
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self.counter += 1
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def search(self, v: list, k: int = 10):
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result = []
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distance, item_index = self.index.search(v, k)
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for dist, i in zip(distance[0], item_index[0]):
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if i == -1:
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break
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else:
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result.append((self.vectors[i][0], self.vectors[i][1], self.vectors[i][2], dist))
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return result
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def suggest_tags(self, query, top_n=10, k=30) -> list:
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emb = self.sentence_encoder.encode([query.lower()])
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r = self.search(emb, k)
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result = []
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for i in r:
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if check(query, i[1]):
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result.append(i)
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# надо добавить вес относительно длины
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result = sorted(result, key=lambda x: x[0] * 0.3 - x[-1], reverse=True)
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total_result = []
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for i in range(len(result)):
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flag = True
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for j in result[i + 1:]:
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flag &= sweet_check(result[i][1], j[1])
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if flag:
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total_result.append(result[i][1])
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return total_result[:top_n]
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