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refactor: use vdb instance's cosine threshold instead of global constant

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• Remove global COSINE_THRESHOLD
• Use instance-level threshold config
• Update logging statements
• Reference vdb threshold directly
This commit is contained in:
yangdx
2025-02-13 03:34:31 +08:00
parent f01f57d0da
commit 11c7af7fd8
1 changed files with 2 additions and 4 deletions
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6
lightrag/operate.py
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@@ -35,8 +35,6 @@ from .prompt import GRAPH_FIELD_SEP, PROMPTS
import time
COSINE_THRESHOLD = float(os.getenv("COSINE_THRESHOLD", "0.2"))
def chunking_by_token_size(
content: str,
@@ -1059,7 +1057,7 @@ async def _get_node_data(
query_param: QueryParam,
):
# get similar entities
logger.info(f"Query nodes: {query}, top_k: {query_param.top_k}, cosine: {COSINE_THRESHOLD}")
logger.info(f"Query nodes: {query}, top_k: {query_param.top_k}, cosine: {entities_vdb.cosine_better_than_threshold}")
results = await entities_vdb.query(query, top_k=query_param.top_k)
if not len(results):
return "", "", ""
@@ -1275,7 +1273,7 @@ async def _get_edge_data(
text_chunks_db: BaseKVStorage,
query_param: QueryParam,
):
logger.info(f"Query edges: {keywords}, top_k: {query_param.top_k}, cosine: {COSINE_THRESHOLD}")
logger.info(f"Query edges: {keywords}, top_k: {query_param.top_k}, cosine: {relationships_vdb.cosine_better_than_threshold}")
results = await relationships_vdb.query(keywords, top_k=query_param.top_k)
if not len(results):