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Large Language Models (LLMs) play powerful, black-box readers in the retrieve-then-read pipeline, making remarkable progress in knowledge-intensive tasks. This work introduces a new framework, Rewrite-Retrieve-Read instead of the previous…

Computation and Language · Computer Science 2023-10-24 Xinbei Ma , Yeyun Gong , Pengcheng He , Hai Zhao , Nan Duan

Evaluating LLMs and text-to-image models is a computationally intensive task often overlooked. Efficient evaluation is crucial for understanding the diverse capabilities of these models and enabling comparisons across a growing number of…

Feature selection is a crucial step in machine learning, especially for high-dimensional datasets, where irrelevant and redundant features can degrade model performance and increase computational costs. This paper proposes a novel…

Neural and Evolutionary Computing · Computer Science 2024-10-30 Azam Asilian Bidgoli , Shahryar Rahnamayan

This study aims to improve the accuracy and quality of large-scale language models (LLMs) in answering questions by integrating Elasticsearch into the Retrieval Augmented Generation (RAG) framework. The experiment uses the Stanford Question…

Information Retrieval · Computer Science 2024-10-21 Jiajing Chen , Runyuan Bao , Hongye Zheng , Zhen Qi , Jianjun Wei , Jiacheng Hu

Neural sentence embedding models for dense retrieval typically rely on binary relevance labels, treating query-document pairs as either relevant or irrelevant. However, real-world relevance often exists on a continuum, and recent advances…

Information Retrieval · Computer Science 2025-08-12 Christos Tsirigotis , Vaibhav Adlakha , Joao Monteiro , Aaron Courville , Perouz Taslakian

The rapid advancement of Large Language Models (LLMs) has spurred significant progress in Large Speech-Language Models (LSLMs), enhancing their capabilities in both speech understanding and generation. While existing LSLMs often concentrate…

Computation and Language · Computer Science 2025-11-03 Shoutao Guo , Shaolei Zhang , Qingkai Fang , Zhengrui Ma , Min Zhang , Yang Feng

This paper introduces a system that integrates large language models (LLMs) into the clinical trial retrieval process, enhancing the effectiveness of matching patients with eligible trials while maintaining information privacy and allowing…

Information Retrieval · Computer Science 2024-11-01 Georgios Peikos , Pranav Kasela , Gabriella Pasi

Large language model (LLM) pruning with fixed N:M structured sparsity significantly limits the expressivity of the sparse model, yielding sub-optimal performance. In contrast, supporting multiple N:M patterns to provide sparse…

Machine Learning · Computer Science 2025-04-22 Akshat Ramachandran , Souvik Kundu , Arnab Raha , Shamik Kundu , Deepak K. Mathaikutty , Tushar Krishna

This paper studies fast fusion of dense retrieval and sparse lexical retrieval, and proposes a cluster-based selective dense retrieval method called CluSD guided by sparse lexical retrieval. CluSD takes a lightweight cluster-based approach…

Information Retrieval · Computer Science 2025-02-18 Yingrui Yang , Parker Carlson , Yifan Qiao , Wentai Xie , Shanxiu He , Tao Yang

This study presents a novel framework for smart search in digital archival systems, leveraging the capabilities of Large Language Models (LLMs) to enhance information retrieval. By employing a Retrieval-Augmented Generation (RAG) approach,…

Artificial Intelligence · Computer Science 2025-01-14 Ha Dung Nguyen , Thi-Hoang Anh Nguyen , Thanh Binh Nguyen

Alongside the rapid development of Large Language Models (LLMs), there has been a notable increase in efforts to integrate LLM techniques in information retrieval (IR) and search engines (SE). Recently, an additional post-ranking stage is…

Information Retrieval · Computer Science 2024-11-05 Yang Yan , Yihao Wang , Chi Zhang , Wenyuan Hou , Kang Pan , Xingkai Ren , Zelun Wu , Zhixin Zhai , Enyun Yu , Wenwu Ou , Yang Song

Large Language Models (LLMs) herald a transformative era in artificial intelligence (AI). However, the expansive scale of data and parameters of LLMs requires high-demand computational and memory resources, restricting their accessibility…

Machine Learning · Computer Science 2024-11-26 Shengwen Ding , Chenhui Hu

Large Language Models (LLMs) have shown strong promise as rerankers, especially in ``listwise'' settings where an LLM is prompted to rerank several search results at once. However, this ``cascading'' retrieve-and-rerank approach is limited…

Information Retrieval · Computer Science 2025-01-17 Mandeep Rathee , Sean MacAvaney , Avishek Anand

Traditional pruning methods are known to be challenging to work in Large Language Models (LLMs) for Generative AI because of their unaffordable training process and large computational demands. For the first time, we introduce the…

Machine Learning · Computer Science 2024-03-25 Yun Li , Lin Niu , Xipeng Zhang , Kai Liu , Jianchen Zhu , Zhanhui Kang

Query Reformulation (QR) is a set of techniques used to transform a user's original search query to a text that better aligns with the user's intent and improves their search experience. Recently, zero-shot QR has been a promising approach…

Information Retrieval · Computer Science 2024-05-29 Kaustubh D. Dhole , Ramraj Chandradevan , Eugene Agichtein

Large language models (LLMs) are probabilistic in nature and perform more reliably when augmented with external information. As complex queries often require multi-step reasoning over the retrieved information, with no clear or…

Information Retrieval · Computer Science 2026-04-10 Roxana Petcu , Evangelos Kanoulas , Maarten de Rijke

Adaptive Retrieval-Augmented Generation aims to mitigate the interference of extraneous noise by dynamically determining the necessity of retrieving supplementary passages. However, as Large Language Models evolve with increasing robustness…

Information Retrieval · Computer Science 2026-04-20 Jun Feng , Jiahui Tang , Zhicheng He , Hang Lv , Hongchao Gu , Hao Wang , Xuezhi Yang , Shuai Fang

As large language models (LLMs) continue to scale up, their performance on various downstream tasks has significantly improved. However, evaluating their capabilities has become increasingly expensive, as performing inference on a large…

Computation and Language · Computer Science 2026-02-10 Taolin Zhang , Hang Guo , Wang Lu , Tao Dai , Shu-Tao Xia , Jindong Wang

Fine-tuning Multimodal Large Language Models (MLLMs) with parameter-efficient methods like Low-Rank Adaptation (LoRA) is crucial for task adaptation. However, imbalanced training dynamics across modalities often lead to suboptimal accuracy…

Machine Learning · Computer Science 2026-03-03 Minkyoung Cho , Insu Jang , Shuowei Jin , Zesen Zhao , Adityan Jothi , Ethem F. Can , Min-Hung Chen , Z. Morley Mao

SQL query rewriting aims to reformulate a query into a more efficient form while preserving equivalence. Most existing methods rely on predefined rewrite rules. However, such rule-based approaches face fundamental limitations: (1) fixed…

Databases · Computer Science 2025-08-18 Dongjie Xu , Yue Cui , Weijie Shi , Qingzhi Ma , Hanghui Guo , Jiaming Li , Yao Zhao , Ruiyuan Zhang , Shimin Di , Jia Zhu , Kai Zheng , Jiajie Xu