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With the rapid advancement of multimodal information retrieval, increasingly complex retrieval tasks have emerged. Existing methods predominately rely on task-specific fine-tuning of vision-language models, often those trained with…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Yikun Liu , Pingan Chen , Jiayin Cai , Xiaolong Jiang , Yao Hu , Jiangchao Yao , Yanfeng Wang , Weidi Xie

Effective tool use and reasoning are essential capabilities for large reasoning models~(LRMs) to address complex real-world problems. Through empirical analysis, we identify that current LRMs lack the capability of sub-task decomposition in…

Computation and Language · Computer Science 2026-02-03 Bowen Xu , Shaoyu Wu , Hao Jiang , Kai Liu , Xin Chen , Lulu Hu , Bin Yang

In this paper, we propose SimLM (Similarity matching with Language Model pre-training), a simple yet effective pre-training method for dense passage retrieval. It employs a simple bottleneck architecture that learns to compress the passage…

Information Retrieval · Computer Science 2023-05-15 Liang Wang , Nan Yang , Xiaolong Huang , Binxing Jiao , Linjun Yang , Daxin Jiang , Rangan Majumder , Furu Wei

Predictive models that accurately emulate complex scientific processes can achieve exponential speed-ups over numerical simulators or experiments, and at the same time provide surrogates for improving the subsequent analysis. Consequently,…

Lane detection is a fundamental task in autonomous driving, and has achieved great progress as deep learning emerges. Previous anchor-based methods often design dense anchors, which highly depend on the training dataset and remain fixed…

Computer Vision and Pattern Recognition · Computer Science 2024-04-12 Ji Liu , Zifeng Zhang , Mingjie Lu , Hongyang Wei , Dong Li , Yile Xie , Jinzhang Peng , Lu Tian , Ashish Sirasao , Emad Barsoum

Conversational search requires accurate interpretation of user intent from complex multi-turn contexts. This paper presents ChatRetriever, which inherits the strong generalization capability of large language models to robustly represent…

Information Retrieval · Computer Science 2024-04-23 Kelong Mao , Chenlong Deng , Haonan Chen , Fengran Mo , Zheng Liu , Tetsuya Sakai , Zhicheng Dou

Transformer-based models are the foundation of modern machine learning, but their execution, particularly during autoregressive decoding in large language models (LLMs), places significant pressure on memory systems due to frequent memory…

Computation and Language · Computer Science 2026-05-13 Zehao Fan , Garrett Gagnon , Zhenyu Liu , Liu Liu

In modern e-commerce search systems, dense retrieval has become an indispensable component. By computing similarities between query and item (product) embeddings, it efficiently selects candidate products from large-scale repositories. With…

Information Retrieval · Computer Science 2025-10-20 Jianting Tang , Dongshuai Li , Tao Wen , Fuyu Lv , Dan Ou , Linli Xu

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

We present LFM2, a family of Liquid Foundation Models designed for efficient on-device deployment and strong task capabilities. Using hardware-in-the-loop architecture search under edge latency and memory constraints, we obtain a compact…

Test-time scaling investigates whether a fixed diffusion language model (DLM) can generate better outputs when given more inference compute, without additional training. However, naive best-of-$K$ sampling is fundamentally limited because…

Large language models (LLMs) have been significantly improved by instruction fine-tuning, but still lack transparency and the ability to utilize up-to-date knowledge and information. In this work, we propose search-augmented instruction…

Computation and Language · Computer Science 2023-06-27 Hongyin Luo , Yung-Sung Chuang , Yuan Gong , Tianhua Zhang , Yoon Kim , Xixin Wu , Danny Fox , Helen Meng , James Glass

Reinforcement Learning (RL) has become the most effective post-training approach for improving the capabilities of Large Language Models (LLMs). In practice, because of the high demands on latency and memory, it is particularly challenging…

In knowledge-intensive tasks such as open-domain question answering (OpenQA), large language models (LLMs) often struggle to generate factual answers, relying solely on their internal (parametric) knowledge. To address this limitation,…

Computation and Language · Computer Science 2025-04-29 Jinming Nian , Zhiyuan Peng , Qifan Wang , Yi Fang

Despite considerable progress in neural relevance ranking techniques, search engines still struggle to process complex queries effectively - both in terms of precision and recall. Sparse and dense Pseudo-Relevance Feedback (PRF) approaches…

Information Retrieval · Computer Science 2023-12-06 Iain Mackie , Shubham Chatterjee , Sean MacAvaney , Jeffrey Dalton

While Large Language Models (LLMs) have achieved remarkable success in code generation, they often struggle with the deep, long-horizon reasoning required for complex software engineering. We attribute this limitation to the nature of…

Despite exceptional capabilities, Large Language Models (LLMs) still face deployment challenges due to their enormous size. Post-training structured pruning is a promising solution that prunes LLMs without the need for retraining, reducing…

Machine Learning · Computer Science 2025-02-21 Weizhong Huang , Yuxin Zhang , Xiawu Zheng , Fei Chao , Rongrong Ji

The increasing complexity of deep learning recommendation models (DLRM) has led to a growing need for large-scale distributed systems that can efficiently train vast amounts of data. In DLRM, the sparse embedding table is a crucial…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-08-07 Xin Zhang , Quanyu Zhu , Liangbei Xu , Zain Huda , Wang Zhou , Jin Fang , Dennis van der Staay , Yuxi Hu , Jade Nie , Jiyan Yang , Chunzhi Yang

The use of deep learning has successfully solved several problems in the field of medical imaging. Deep learning has been applied to the CT denoising problem successfully. However, the use of deep learning requires large amounts of data to…

Image and Video Processing · Electrical Eng. & Systems 2022-04-04 Mayank Patwari , Ralf Gutjahr , Rainer Raupach , Andreas Maier

Large language model (LLM) based listwise reranking has emerged as the dominant paradigm for achieving state-of-the-art ranking effectiveness in information retrieval. However, its reliance on feeding full passage texts into the LLM…

Information Retrieval · Computer Science 2026-04-27 Xiaojie Ke , Shuai Zhang , Liansheng Sun , Yongjin Wang , Hengjun Jiang , Xiangkun Liu , Cunxin Gu , Jian Xu , Guanjun Jiang
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