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################################## | |
# Data functions | |
################################## | |
import re | |
from datasets import load_dataset | |
def clean(text): | |
text = text.replace("\n", " ").strip() | |
return re.sub(r"\s{2,}", " ", text) | |
def stream(): | |
arxiv = load_dataset("arxiv_dataset", split="train[:1600000]") | |
for result in arxiv: | |
yield f"{clean(result['title'])}\n{clean(result['abstract'])}" | |
def batch(size): | |
data = [] | |
for result in stream(): | |
data.append(result) | |
if len(data) == size: | |
yield data | |
data = [] | |
if data: | |
yield data | |
def queries(size): | |
for text in next(batch(size)): | |
# Get first 5 terms in title as query | |
title = text.split("\n")[0] | |
yield " ".join(title.split()[:5]) | |
################################## | |
# LangChain | |
################################## | |
import time | |
from langchain_community.retrievers import BM25Retriever | |
from psutil import Process | |
start = time.time() | |
retriever = BM25Retriever.from_texts(list(stream()), k=3) | |
index = time.time() - start | |
start = time.time() | |
for query in queries(100): | |
retriever.invoke(query) | |
memory = int(Process().memory_info().rss / (1024 * 1024)) | |
print(f"INDEX TIME = {index:.2f}s") | |
print(f"SEARCH TIME = {time.time() - start:.2f}s") | |
print(f"MEMORY = {memory} MB") | |
################################## | |
# txtai | |
################################## | |
import time | |
from psutil import Process | |
from txtai import Embeddings | |
start = time.time() | |
embeddings = Embeddings(content=True, keyword=True) | |
embeddings.index(stream()) | |
index = time.time() - start | |
start = time.time() | |
for query in queries(100): | |
embeddings.search(query, 3) | |
memory = int(Process().memory_info().rss / (1024 * 1024)) | |
print(f"INDEX TIME = {index:.2f}s") | |
print(f"SEARCH TIME = {time.time() - start:.2f}s") | |
print(f"MEMORY = {memory} MB") |
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