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20242026
most citedEffective Inference-Free Retrieval for Learned Sparse Representations

7 citations · 7 across the 9 of their papers we have counts for

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cs.IR2026

Sparton: Fast and Memory-Efficient Triton Kernel for Learned Sparse Retrieval

Thong Nguyen, Cosimo Rulli, Franco Maria Nardini +2

State-of-the-art Learned Sparse Retrieval (LSR) models, such as Splade, typically employ a Language Modeling (LM) head to project latent hidden states into a lexically-anchored log…

cs.IR2025

Milco: Learned Sparse Retrieval Across Languages via a Multilingual Connector

Thong Nguyen, Yibin Lei, Jia-Huei Ju +2

Learned Sparse Retrieval (LSR) combines the efficiency of bi-encoders with the transparency of lexical matching, but existing approaches struggle to scale beyond English. We introd…

cs.IR2025

SERVAL: Surprisingly Effective Zero-Shot Visual Document Retrieval Powered by Large Vision and Language Models

Thong Nguyen, Yibin Lei, Jia-Huei Ju +1

Visual Document Retrieval (VDR) typically operates as text-to-image retrieval using specialized bi-encoders trained to directly embed document images. We revisit a zero-shot genera…

cs.IR2025★ 7 cited

Effective Inference-Free Retrieval for Learned Sparse Representations

Franco Maria Nardini, Thong Nguyen, Cosimo Rulli +2

Learned Sparse Retrieval (LSR) is an effective IR approach that exploits pre-trained language models for encoding text into a learned bag of words. Several efforts in the literatur…

cs.IR2025

Leveraging Decoder Architectures for Learned Sparse Retrieval

Jingfen Qiao, Thong Nguyen, Evangelos Kanoulas +1

Learned Sparse Retrieval (LSR) has traditionally focused on small-scale encoder-only transformer architectures. With the advent of large-scale pre-trained language models, their ca…

cs.IR2024

DyVo: Dynamic Vocabularies for Learned Sparse Retrieval with Entities

Thong Nguyen, Shubham Chatterjee, Sean MacAvaney +3

Learned Sparse Retrieval (LSR) models use vocabularies from pre-trained transformers, which often split entities into nonsensical fragments. Splitting entities can reduce retrieval…

cs.IR2024

Multimodal Learned Sparse Retrieval with Probabilistic Expansion Control

Thong Nguyen, Mariya Hendriksen, Andrew Yates +1

Learned sparse retrieval (LSR) is a family of neural methods that encode queries and documents into sparse lexical vectors that can be indexed and retrieved efficiently with an inv…

cs.IR2024

Multimodal Learned Sparse Retrieval for Image Suggestion

Thong Nguyen, Mariya Hendriksen, Andrew Yates

Learned Sparse Retrieval (LSR) is a group of neural methods designed to encode queries and documents into sparse lexical vectors. These vectors can be efficiently indexed and retri…