How to Build a Matryoshka-Optimized Sentence Embedding Model for Ultra-Fast Retrieval with 64-Dimension Truncation
In this tutorial, we fine-tune a Sentence-Transformers embedding model using Matryoshka Representation Learning so that the earliest dimensions of the vector carry the most useful semantic signal. We train with MatryoshkaLoss on triplet data and then validate the key promise of MRL by benchmarking retrieval quality after truncating embeddings to 64, 128, and 256 dimensions. At the end, we save the tuned model and demonstrate how to load it with a small truncate_dim setting for fast and memory-efficient vector search. Check out the FULL CODES here . Copy Code Copied Use a different Browser !pip -q install -U sentence-transformers datasets accelerate import math import random import numpy as np import torch from datasets import load_dataset from torch.utils.data import DataLoader from sentence_transformers import SentenceTransformer, InputExample from sentence_transformers import losses from sentence_transformers.util import cos_sim def set_seed(seed=42): ran...
