arabic-RAG / backend /semantic_search.py
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derek-thomas HF staff
Minor fixes
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import logging
import time
from pathlib import Path
import lancedb
from sentence_transformers import SentenceTransformer
import spaces
# Setting up the logging
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)
# Start the timer for loading the QdrantDocumentStore
start_time = time.perf_counter()
proj_dir = Path(__file__).parents[1]
# Log the time taken to load the QdrantDocumentStore
db = lancedb.connect(proj_dir / "lancedb")
tbl = db.open_table('arabic-wiki')
lancedb_loading_time = time.perf_counter() - start_time
logger.info(f"Time taken to load LanceDB: {lancedb_loading_time:.6f} seconds")
# Start the timer for loading the EmbeddingRetriever
start_time = time.perf_counter()
name = "sentence-transformers/paraphrase-multilingual-minilm-l12-v2"
st_model_gpu = SentenceTransformer(name, device='mps')
st_model_cpu = SentenceTransformer(name, device='cpu')
# used for both training and querying
def call_embed_func(query):
try:
return embed_func(query)
except:
logger.warning(f'Using CPU')
return st_model_cpu.encode(query)
@spaces.GPU
def embed_func(query):
return st_model_gpu.encode(query)
def vector_search(query_vector, top_k):
return tbl.search(query_vector).limit(top_k).to_list()
def retriever(query, top_k=3):
query_vector = call_embed_func(query)
documents = vector_search(query_vector, top_k)
return documents
# Log the time taken to load the EmbeddingRetriever
retriever_loading_time = time.perf_counter() - start_time
logger.info(f"Time taken to load EmbeddingRetriever: {retriever_loading_time:.6f} seconds")