File size: 1,055 Bytes
3bc0a9f |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 |
from langchain_community.embeddings import HuggingFaceEmbeddings
from langchain_community.vectorstores import FAISS
from langchain_community.document_loaders import PyPDFLoader, DirectoryLoader
from langchain.text_splitter import RecursiveCharacterTextSplitter
DATA_PATH = 'data/'
DB_FAISS_PATH = 'vectorstore/db_faiss'
# Create vector database
def create_vector_db():
loader = DirectoryLoader(DATA_PATH,
glob='*.pdf',
loader_cls=PyPDFLoader)
documents = loader.load()
text_splitter = RecursiveCharacterTextSplitter(chunk_size=500,
chunk_overlap=50)
texts = text_splitter.split_documents(documents)
embeddings = HuggingFaceEmbeddings(model_name='sentence-transformers/all-MiniLM-L6-v2',
model_kwargs={'device': 'cpu'})
db = FAISS.from_documents(texts, embeddings)
db.save_local(DB_FAISS_PATH)
if __name__ == "__main__":
create_vector_db()
|