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In this paper, we introduce SemHiTok, a unified image Tokenizer via Semantic-Guided Hierarchical codebook that provides consistent discrete representations for multimodal understanding and generation. Recently, unified image tokenizers have…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Zisheng Chen , Chunwei Wang , Runhui Huang , Hongbin Xu , Xiuwei Chen , Jun Zhou , Jianhua Han , Hang Xu , Xiaodan Liang

Recent advances in generative recommenders adopt a two-stage paradigm: items are first tokenized into semantic IDs using a pretrained tokenizer, and then large language models (LLMs) are trained to generate the next item via…

Information Retrieval · Computer Science 2026-05-05 Yifan Liu , Yaokun Liu , Zelin Li , Zhenrui Yue , Gyuseok Lee , Ruichen Yao , Yang Zhang , Dong Wang

Recently, the generality of natural language text has been leveraged to develop transferable recommender systems. The basic idea is to employ pre-trained language models~(PLM) to encode item text into item representations. Despite the…

Information Retrieval · Computer Science 2023-02-14 Yupeng Hou , Zhankui He , Julian McAuley , Wayne Xin Zhao

Generative recommendation has recently emerged as a powerful paradigm that unifies retrieval and generation, representing items as discrete semantic tokens and enabling flexible sequence modeling with autoregressive models. Despite its…

Computation and Language · Computer Science 2025-11-27 Zheng Hui , Xiaokai Wei , Reza Shirkavand , Chen Wang , Weizhi Zhang , Alejandro Peláez , Michelle Gong

Many recommendation systems limit user inputs to text strings or behavior signals such as clicks and purchases, and system outputs to a list of products sorted by relevance. With the advent of generative AI, users have come to expect richer…

Multimodal named entity recognition (MNER) is a critical step in information extraction, which aims to detect entity spans and classify them to corresponding entity types given a sentence-image pair. Existing methods either (1) obtain named…

Computer Vision and Pattern Recognition · Computer Science 2022-11-29 Meihuizi Jia , Lei Shen , Xin Shen , Lejian Liao , Meng Chen , Xiaodong He , Zhendong Chen , Jiaqi Li

Visual tokenizers are fundamental to image generation. They convert visual data into discrete tokens, enabling transformer-based models to excel at image generation. Despite their success, VQ-based tokenizers like VQGAN face significant…

Computer Vision and Pattern Recognition · Computer Science 2024-11-28 Zechen Bai , Jianxiong Gao , Ziteng Gao , Pichao Wang , Zheng Zhang , Tong He , Mike Zheng Shou

Inspired by the fact that different modalities in videos carry complementary information, we propose a Multimodal Semantic Attention Network(MSAN), which is a new encoder-decoder framework incorporating multimodal semantic attributes for…

Computer Vision and Pattern Recognition · Computer Science 2019-05-09 Liang Sun , Bing Li , Chunfeng Yuan , Zhengjun Zha , Weiming Hu

Multimodal information (e.g., visual, acoustic, and textual) has been widely used to enhance representation learning for micro-video recommendation. For integrating multimodal information into a joint representation of micro-video,…

Computer Vision and Pattern Recognition · Computer Science 2025-01-14 Han Liu , Yinwei Wei , Fan Liu , Wenjie Wang , Liqiang Nie , Tat-Seng Chua

The increasing availability and diversity of multimodal data in recommender systems offer new avenues for enhancing recommendation accuracy and user satisfaction. However, these systems must contend with high-dimensional, sparse user-item…

Information Retrieval · Computer Science 2024-12-04 Yasser Khalafaoui , Martino Lovisetto , Basarab Matei , Nistor Grozavu

Many real-world problems are inherently multimodal, from spoken language, gestures, and paralinguistics humans use to communicate, to force, proprioception, and visual sensors on robots. While there has been an explosion of interest in…

High-quality, multi-modal benchmarks are crucial for advancing scientific reasoning in large models yet their manual creation is costly and unscalable. To address this bottleneck, we explore the potential for transforming Text-Only QA Pairs…

Computation and Language · Computer Science 2025-10-01 Junying Wang , Zicheng Zhang , Ye Shen , Yalun Wu , Yingji Liang , Yijin Guo , Farong Wen , Wenzhe Li , Xuezhi Zhao , Qi Jia , Guangtao Zhai

Image Quality Assessment (IQA) models benefit significantly from semantic information, which allows them to treat different types of objects distinctly. Currently, leveraging semantic information to enhance IQA is a crucial research…

Computer Vision and Pattern Recognition · Computer Science 2024-05-21 Wensheng Pan , Timin Gao , Yan Zhang , Runze Hu , Xiawu Zheng , Enwei Zhang , Yuting Gao , Yutao Liu , Yunhang Shen , Ke Li , Shengchuan Zhang , Liujuan Cao , Rongrong Ji

Industrial recommender systems increasingly adopt multi-scenario learning (MSL) and multi-task learning (MTL) to handle diverse user interactions and contexts, but existing approaches suffer from two critical drawbacks: (1) underutilization…

Information Retrieval · Computer Science 2026-02-11 Shanlei Mu , Yuchen Jiang , Shikang Wu , Shiyong Hong , Tianmu Sha , Junjie Zhang , Jie Zhu , Zhe Chen , Zhe Wang , Jingjian Lin

Multimedia-based recommendation provides personalized item suggestions by learning the content preferences of users. With the proliferation of digital devices and APPs, a huge number of new items are created rapidly over time. How to…

Information Retrieval · Computer Science 2024-05-28 Haoyue Bai , Le Wu , Min Hou , Miaomiao Cai , Zhuangzhuang He , Yuyang Zhou , Richang Hong , Meng Wang

With the increasing development of e-commerce and online services, personalized recommendation systems have become crucial for enhancing user satisfaction and driving business revenue. Traditional sequential recommendation methods that rely…

Information Retrieval · Computer Science 2023-04-27 Kunzhe Song , Qingfeng Sun , Can Xu , Kai Zheng , Yaming Yang

Query suggestion, a technique widely adopted in information retrieval, enhances system interactivity and the browsing experience of document collections. In cross-modal retrieval, many works have focused on retrieving relevant items from…

Information Retrieval · Computer Science 2024-12-19 Giacomo Pacini , Fabio Carrara , Nicola Messina , Nicola Tonellotto , Giuseppe Amato , Fabrizio Falchi

Large Language Models (LLMs) have demonstrated exceptional proficiency in text understanding and embedding tasks. However, their potential in multimodal representation, particularly for item-to-item (I2I) recommendations, remains…

Information Retrieval · Computer Science 2025-01-22 Chao Zhang , Haoxin Zhang , Shiwei Wu , Di Wu , Tong Xu , Xiangyu Zhao , Yan Gao , Yao Hu , Enhong Chen

In many applications involving multi-media data, the definition of similarity between items is integral to several key tasks, e.g., nearest-neighbor retrieval, classification, and recommendation. Data in such regimes typically exhibits…

Artificial Intelligence · Computer Science 2010-09-01 Brian McFee , Gert Lanckriet

Despite Multi-modal Large Language Models (MM-LLMs) have made exciting strides recently, they are still struggling to efficiently model the interactions among multi-modal inputs and the generation in non-textual modalities. In this work, we…

Computation and Language · Computer Science 2024-01-05 Zhen Yang , Yingxue Zhang , Fandong Meng , Jie Zhou