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Original file line number | Diff line number | Diff line change |
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import asyncio | ||
import logging | ||
from datetime import datetime | ||
|
||
from neo4j import AsyncDriver | ||
from pydantic import BaseModel | ||
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||
from core.edges import EntityEdge | ||
from core.llm_client.config import EMBEDDING_DIM | ||
from core.search.search_utils import ( | ||
edge_similarity_search, | ||
edge_fulltext_search, | ||
get_mentioned_nodes, | ||
rrf, | ||
) | ||
from core.utils import retrieve_episodes | ||
from core.utils.maintenance.graph_data_operations import EPISODE_WINDOW_LEN | ||
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logger = logging.getLogger(__name__) | ||
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class SearchConfig(BaseModel): | ||
num_results: int = 10 | ||
num_episodes: int = EPISODE_WINDOW_LEN | ||
similarity_search: str = "cosine" | ||
text_search: str = "BM25" | ||
reranker: str = "rrf" | ||
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async def search( | ||
driver: AsyncDriver, embedder, query: str, timestamp: datetime, config: SearchConfig | ||
): | ||
episodes = [] | ||
nodes = [] | ||
edges = [] | ||
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search_results = [] | ||
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if config.num_episodes > 0: | ||
episodes.extend(await retrieve_episodes(driver, timestamp)) | ||
nodes.extend(await get_mentioned_nodes(driver, episodes)) | ||
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if config.text_search: | ||
text_search = await edge_fulltext_search(query, driver) | ||
search_results.append(text_search) | ||
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if config.similarity_search: | ||
query_text = query.replace("\n", " ") | ||
search_vector = ( | ||
(await embedder.create(input=[query_text], model="text-embedding-3-small")) | ||
.data[0] | ||
.embedding[:EMBEDDING_DIM] | ||
) | ||
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similarity_search = await edge_similarity_search(search_vector, driver) | ||
search_results.append(similarity_search) | ||
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if len(search_results) == 1: | ||
edges = search_results[0] | ||
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elif len(search_results) > 1 and not config.reranker: | ||
logger.exception("Multiple searches enabled without a reranker") | ||
raise Exception("Multiple searches enabled without a reranker") | ||
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elif config.reranker: | ||
search_result_uuids = [ | ||
[edge.uuid for edge in result] for result in search_results | ||
] | ||
edges.extend(rrf(search_result_uuids)) | ||
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context = { | ||
"episodes": episodes, | ||
"nodes": nodes, | ||
"edges": edges, | ||
} | ||
|
||
return context |
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