Ms Marco MiniLM L2 V2

🚀 Cross-Encoder for MS Marco

This model is designed for the MS Marco Passage Ranking task, offering effective solutions for information retrieval.

🚀 Quick Start

This model was trained on the MS Marco Passage Ranking task.

The model can be used for Information Retrieval: Given a query, encode the query with all possible passages (e.g., retrieved with ElasticSearch). Then sort the passages in a decreasing order. See SBERT.net Retrieve & Re-rank for more details. The training code is available here: SBERT.net Training MS Marco

✨ Features

• Trained on MS Marco: Specifically designed for the MS Marco Passage Ranking task.
• Useful for Information Retrieval: Can effectively sort passages based on a given query.

📦 Installation

No specific installation steps are provided in the original README. However, to use the model, you need to install relevant libraries such as sentence-transformers or transformers.

💻 Usage Examples

Basic Usage

Usage with SentenceTransformers

The usage is easy when you have SentenceTransformers installed. Then you can use the pre-trained models like this:

from sentence_transformers import CrossEncoder

model = CrossEncoder('cross-encoder/ms-marco-MiniLM-L2-v2')
scores = model.predict([
    ("How many people live in Berlin?", "Berlin had a population of 3,520,031 registered inhabitants in an area of 891.82 square kilometers."),
    ("How many people live in Berlin?", "Berlin is well known for its museums."),
])
print(scores)
# [ 8.510401 -4.860082]

Usage with Transformers

from transformers import AutoTokenizer, AutoModelForSequenceClassification
import torch

model = AutoModelForSequenceClassification.from_pretrained('cross-encoder/ms-marco-MiniLM-L2-v2')
tokenizer = AutoTokenizer.from_pretrained('cross-encoder/ms-marco-MiniLM-L2-v2')

features = tokenizer(['How many people live in Berlin?', 'How many people live in Berlin?'], ['Berlin has a population of 3,520,031 registered inhabitants in an area of 891.82 square kilometers.', 'New York City is famous for the Metropolitan Museum of Art.'],  padding=True, truncation=True, return_tensors="pt")

model.eval()
with torch.no_grad():
    scores = model(**features).logits
    print(scores)

📚 Documentation

In the following table, we provide various pre-trained Cross-Encoders together with their performance on the TREC Deep Learning 2019 and the MS Marco Passage Reranking dataset.

Note: Runtime was computed on a V100 GPU.

📄 License

This project is licensed under the Apache-2.0 license.