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Retrieval pipelines-an integral component of many machine learning systems-perform poorly in domains where documents are long (e.g., 10K tokens or more) and where identifying the relevant document requires synthesizing information across…

Information Retrieval · Computer Science 2024-11-19 Jon Saad-Falcon , Daniel Y. Fu , Simran Arora , Neel Guha , Christopher Ré

Recent shifts in the space of large language model (LLM) research have shown an increasing focus on novel architectures to compete with prototypical Transformer-based models that have long dominated this space. Linear recurrent models have…

Computation and Language · Computer Science 2025-07-24 Xinyu Wang , Linrui Ma , Jerry Huang , Peng Lu , Prasanna Parthasarathi , Xiao-Wen Chang , Boxing Chen , Yufei Cui

Recent advancements in Large Language Models (LLMs) have significantly enhanced their capacity to process long contexts. However, effectively utilizing this long context remains a challenge due to the issue of distraction, where irrelevant…

Computation and Language · Computer Science 2024-11-12 Zijun Wu , Bingyuan Liu , Ran Yan , Lei Chen , Thomas Delteil

Large language models (LLMs) have demonstrated their ability to learn in-context, allowing them to perform various tasks based on a few input-output examples. However, the effectiveness of in-context learning is heavily reliant on the…

Computation and Language · Computer Science 2024-01-29 Liang Wang , Nan Yang , Furu Wei

Rerankers play a pivotal role in refining retrieval results for Retrieval-Augmented Generation. However, current reranking models are typically optimized on static human annotated relevance labels in isolation, decoupled from the downstream…

Computation and Language · Computer Science 2026-04-03 Yuhang Wu , Xiangqing Shen , Fanfan Wang , Cangqi Zhou , Zhen Wu , Xinyu Dai , Rui Xia

With the advancement of large language models (LLMs) and the expansion of their context windows, existing long-context benchmarks fall short in effectively evaluating the models' comprehension and reasoning abilities in extended texts.…

Computation and Language · Computer Science 2024-06-27 Lei Zhang , Yunshui Li , Ziqiang Liu , Jiaxi yang , Junhao Liu , Longze Chen , Run Luo , Min Yang

Despite the recent progress in long-context language models, it remains elusive how transformer-based models exhibit the capability to retrieve relevant information from arbitrary locations within the long context. This paper aims to…

Computation and Language · Computer Science 2024-04-25 Wenhao Wu , Yizhong Wang , Guangxuan Xiao , Hao Peng , Yao Fu

The strong capabilities of recent Large Language Models (LLMs) have made them highly effective for zero-shot re-ranking task. Attention-based re-ranking methods, which derive relevance scores directly from attention weights, offer an…

Computation and Language · Computer Science 2026-02-24 Yuxing Tian , Fengran Mo , Weixu Zhang , Yiyan Qi , Jian-Yun Nie

Large Language Models (LLMs) have emerged as a promising paradigm for next-generation recommender systems, offering strong semantic understanding and natural-language reasoning abilities. Despite recent progress, current LLM-based…

Information Retrieval · Computer Science 2026-05-11 Shijun Li , Wooseong Yang , Yu Wang , Tianxin Wei , Joydeep Ghosh

Recent studies have demonstrated the effectiveness of using large language language models (LLMs) in passage ranking. The listwise approaches, such as RankGPT, have become new state-of-the-art in this task. However, the efficiency of…

Computation and Language · Computer Science 2025-01-29 Qi Liu , Bo Wang , Nan Wang , Jiaxin Mao

Large Language Models (LLM) have been widely used in reranking. Computational overhead and large context lengths remain a challenging issue for LLM rerankers. Efficient reranking usually involves selecting a subset of the ranked list from…

Information Retrieval · Computer Science 2026-05-29 Nilanjan Sinhababu , Soumedhik Bharati , Debasis Ganguly , Pabitra Mitra

Large Language Models (LLMs) have significantly impacted many facets of natural language processing and information retrieval. Unlike previous encoder-based approaches, the enlarged context window of these generative models allows for…

Information Retrieval · Computer Science 2024-05-24 Andrew Parry , Sean MacAvaney , Debasis Ganguly

Referring Expression Comprehension and Segmentation are critical tasks for assessing the integration of language understanding and image comprehension, serving as benchmarks for Multimodal Large Language Models (MLLMs) capabilities. To…

Computation and Language · Computer Science 2026-01-21 Qihua Dong , Luis Figueroa , Handong Zhao , Kushal Kafle , Jason Kuen , Zhihong Ding , Scott Cohen , Yun Fu

Large Language Models (LLMs) face significant challenges in long-context processing, including quadratic computational costs, information forgetting, and the context fragmentation inherent in retrieval-augmented generation (RAG). We propose…

Computation and Language · Computer Science 2026-02-10 Zhuoen Chen , Dongfang Li , Meishan Zhang , Baotian Hu , Min Zhang

Accurate document retrieval is crucial for the success of retrieval-augmented generation (RAG) applications, including open-domain question answering and code completion. While large language models (LLMs) have been employed as dense…

Computation and Language · Computer Science 2024-11-04 Tong Niu , Shafiq Joty , Ye Liu , Caiming Xiong , Yingbo Zhou , Semih Yavuz

Recent advances in deep neural networks, language modeling and language generation have introduced new ideas to the field of conversational agents. As a result, deep neural models such as sequence-to-sequence, Memory Networks, and the…

Computation and Language · Computer Science 2019-02-27 Momchil Hardalov , Ivan Koychev , Preslav Nakov

Query and product relevance prediction is a critical component for ensuring a smooth user experience in e-commerce search. Traditional studies mainly focus on BERT-based models to assess the semantic relevance between queries and products.…

Information Retrieval · Computer Science 2025-03-13 Tian Tang , Zhixing Tian , Zhenyu Zhu , Chenyang Wang , Haiqing Hu , Guoyu Tang , Lin Liu , Sulong Xu

In-Context Learning (ICL) enables Large Language Models (LLMs) to perform new tasks by conditioning on prompts with relevant information. Retrieval-Augmented Generation (RAG) enhances ICL by incorporating retrieved documents into the LLM's…

Machine Learning · Computer Science 2024-12-02 Marie Al Ghossein , Emile Contal , Alexandre Robicquet

We introduce Rank1, the first reranking model trained to take advantage of test-time compute. Rank1 demonstrates the applicability within retrieval of using a reasoning language model (i.e. OpenAI's o1, Deepseek's R1, etc.) for distillation…

Information Retrieval · Computer Science 2025-08-11 Orion Weller , Kathryn Ricci , Eugene Yang , Andrew Yates , Dawn Lawrie , Benjamin Van Durme

Precisely modeling user ultra-long sequences is critical for industrial recommender systems. Current approaches predominantly focus on leveraging ultra-long sequences in the ranking stage, whereas research for the candidate retrieval stage…

Information Retrieval · Computer Science 2025-08-26 Qin Ren , Zheng Chai , Xijun Xiao , Yuchao Zheng , Di Wu