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In this work, we present CollabVLA, a self-reflective vision-language-action framework that transforms a standard visuomotor policy into a collaborative assistant. CollabVLA tackles key limitations of prior VLAs, including domain…

Robotics · Computer Science 2025-09-19 Nan Sun , Yongchang Li , Chenxu Wang , Huiying Li , Huaping Liu

Generalized Referring Expression Segmentation (GRES) extends the scope of classic RES to refer to multiple objects in one expression or identify the empty targets absent in the image. GRES poses challenges in modeling the complex spatial…

Computer Vision and Pattern Recognition · Computer Science 2024-03-22 Zhuofan Xia , Dongchen Han , Yizeng Han , Xuran Pan , Shiji Song , Gao Huang

Referring Expression Comprehension (REC) is an emerging research spot in computer vision, which refers to detecting the target region in an image given an text description. Most existing REC methods follow a multi-stage pipeline, which are…

Computer Vision and Pattern Recognition · Computer Science 2019-12-10 Yiyi Zhou , Rongrong Ji , Gen Luo , Xiaoshuai Sun , Jinsong Su , Xinghao Ding , Chia-wen Lin , Qi Tian

Retrieval-augmented generation (RAG) has been extensively employed to mitigate hallucinations in large language models (LLMs). However, existing methods for multi-hop reasoning tasks often lack global planning, increasing the risk of…

Computation and Language · Computer Science 2025-11-14 Yijie Zhu , Haojie Zhou , Wanting Hong , Tailin Liu , Ning Wang

Conversational recommender systems (CRS) aim to provide personalized recommendations via interactive dialogues with users. While large language models (LLMs) enhance CRS with their superior understanding of context-aware user preferences,…

Information Retrieval · Computer Science 2025-02-21 Yaochen Zhu , Chao Wan , Harald Steck , Dawen Liang , Yesu Feng , Nathan Kallus , Jundong Li

Retrieval-Augmented Generation (RAG) has emerged as a powerful paradigm for enhancing the capabilities of large language models. However, existing RAG evaluation predominantly focuses on text retrieval and relies on opaque, end-to-end…

Information Retrieval · Computer Science 2025-05-19 Chuan Xu , Qiaosheng Chen , Yutong Feng , Gong Cheng

Referring expression comprehension (REC) aims to localize a target object within an image based on a given expression. Although recent advances in vision-language models have led to substantial improvements in REC tasks, current REC…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Zongjian Wu , Lei Zhang

Retrieval-Augmented Generation (RAG) has been shown to enhance the factual accuracy of Large Language Models (LLMs), but existing methods often suffer from limited reasoning capabilities in effectively using the retrieved evidence,…

Computation and Language · Computer Science 2024-10-03 Shayekh Bin Islam , Md Asib Rahman , K S M Tozammel Hossain , Enamul Hoque , Shafiq Joty , Md Rizwan Parvez

This study addresses the critical need for enhanced situational awareness in autonomous driving (AD) by leveraging the contextual reasoning capabilities of large language models (LLMs). Unlike traditional perception systems that rely on…

Artificial Intelligence · Computer Science 2025-01-09 Xuewen Luo , Fan Ding , Fengze Yang , Yang Zhou , Junnyong Loo , Hwa Hui Tew , Chenxi Liu

LLMs have demonstrated impressive proficiency in generating coherent and high-quality text, making them valuable across a range of text-generation tasks. However, rigorous evaluation of this generated content is crucial, as ensuring its…

This paper focuses on a referring expression generation (REG) task in which the aim is to pick out an object in a complex visual scene. One common theoretical approach to this problem is to model the task as a two-agent cooperative scheme…

Computation and Language · Computer Science 2022-05-17 Hieu Le , Taufiq Daryanto , Fabian Zhafransyah , Derry Wijaya , Elizabeth Coppock , Sang Chin

Reference Expression Segmentation (RES) and Reference Expression Generation (REG) are mutually inverse tasks that can be naturally jointly trained. Though recent work has explored such joint training, the mechanism of how RES and REG can…

Computer Vision and Pattern Recognition · Computer Science 2022-11-16 Shijia Huang , Feng Li , Hao Zhang , Shilong Liu , Lei Zhang , Liwei Wang

Multimodal Retrieval-Augmented Generation (MRAG) enhances large language models (LLMs) by integrating multimodal data (text, images, videos) into retrieval and generation processes, overcoming the limitations of text-only…

Information Retrieval · Computer Science 2025-04-15 Lang Mei , Siyu Mo , Zhihan Yang , Chong Chen

Multimodal Large Language Models (MLLMs) have shown impressive reasoning abilities and general intelligence in various domains. It inspires researchers to train end-to-end MLLMs or utilize large models to generate policies with…

Robotics · Computer Science 2024-07-31 Qi Lv , Hao Li , Xiang Deng , Rui Shao , Michael Yu Wang , Liqiang Nie

Automatic evaluation of retrieval augmented generation (RAG) systems relies on fine-grained dimensions like faithfulness and relevance, as judged by expert human annotators. Meta-evaluation benchmarks support the development of automatic…

Computation and Language · Computer Science 2025-07-22 María Andrea Cruz Blandón , Jayasimha Talur , Bruno Charron , Dong Liu , Saab Mansour , Marcello Federico

Detailed image captioning is essential for tasks like data generation and aiding visually impaired individuals. High-quality captions require a balance between precision and recall, which remains challenging for current multimodal large…

Computer Vision and Pattern Recognition · Computer Science 2025-06-05 Mingi Jung , Saehyung Lee , Eunji Kim , Sungroh Yoon

Object-aware reasoning in vision-language tasks poses significant challenges for current models, particularly in handling unseen objects, reducing hallucinations, and capturing fine-grained relationships in complex visual scenes. To address…

Computer Vision and Pattern Recognition · Computer Science 2024-12-17 Antonio Carlos Rivera , Anthony Moore , Steven Robinson

Organizations increasingly rely on proprietary enterprise data, including HR records, structured reports, and tabular documents, for critical decision-making. While Large Language Models (LLMs) have strong generative capabilities, they are…

Computation and Language · Computer Science 2025-07-17 Chandana Cheerla

Retrieval-Augmented Generation (RAG) has emerged as an important means of enhancing the performance of large language models (LLMs) in knowledge-intensive tasks. However, most existing RAG strategies treat retrieved passages in a flat and…

Computation and Language · Computer Science 2026-04-20 Dongqi Liu , Hang Ding , Qiming Feng , Xurong Xie , Zhucun Xue , Chengjie Wang , Jian Li , Jiangning Zhang , Yabiao Wang

Retrieval-augmented generation (RAG) systems commonly improve robustness via query-time adaptations such as query expansion and iterative retrieval. While effective, these approaches are inherently stateless: adaptations are recomputed for…

Information Retrieval · Computer Science 2026-02-06 Yuntong Hu , Sha Li , Naren Ramakrishnan , Liang Zhao