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Leveraging long-term user behavioral patterns is a key trajectory for enhancing the accuracy of modern recommender systems. While generative recommender systems have emerged as a transformative paradigm, they face hurdles in effectively…

Information Retrieval · Computer Science 2026-02-06 Shiteng Cao , Junda She , Ji Liu , Bin Zeng , Chengcheng Guo , Kuo Cai , Qiang Luo , Ruiming Tang , Han Li , Kun Gai , Zhiheng Li , Cheng Yang

Speculative decoding has been widely used to accelerate auto-regressive (AR) text generation. However, its effectiveness for visual AR models remains limited due to token selection ambiguity, where multiple tokens share similarly low…

Computer Vision and Pattern Recognition · Computer Science 2025-03-28 Sihwan Park , Doohyuk Jang , Sungyub Kim , Souvik Kundu , Eunho Yang

Multimodal recommendation aims to recommend user-preferred candidates based on her/his historically interacted items and associated multimodal information. Previous studies commonly employ an embed-and-retrieve paradigm: learning user and…

Information Retrieval · Computer Science 2026-01-15 Han Liu , Yinwei Wei , Xuemeng Song , Weili Guan , Yuan-Fang Li , Liqiang Nie

Autoregressive (AR) models excel at generating temporally coherent audio by producing tokens sequentially, yet they often falter in faithfully following complex textual prompts, especially those describing complex sound events. We uncover a…

Computation and Language · Computer Science 2026-01-22 Juncheng Wang , Zhe Hu , Chao Xu , Siyue Ren , Yuxiang Feng , Yang Liu , Baigui Sun , Shujun Wang

Generative Recommendation (GR) has become a promising end-to-end approach with high FLOPS utilization for resource-efficient recommendation. Despite the effectiveness, we show that current GR models suffer from a critical \textbf{bias…

Information Retrieval · Computer Science 2026-02-05 Xinyu Lin , Pengyuan Liu , Wenjie Wang , Yicheng Hu , Chen Xu , Fuli Feng , Qifan Wang , Tat-Seng Chua

Generative recommendation (GR) has become a powerful paradigm in recommendation systems that implicitly links modality and semantics to item representation, in contrast to previous methods that relied on non-semantic item identifiers in…

Information Retrieval · Computer Science 2025-04-01 Jing Zhu , Mingxuan Ju , Yozen Liu , Danai Koutra , Neil Shah , Tong Zhao

Generative Recommendation (GR) has emerged as a new paradigm in recommender systems. This approach relies on quantized representations to discretize item features, modeling users' historical interactions as sequences of discrete tokens.…

Information Retrieval · Computer Science 2025-11-25 Fuwei Zhang , Xiaoyu Liu , Dongbo Xi , Jishen Yin , Huan Chen , Peng Yan , Fuzhen Zhuang , Zhao Zhang

The goal of modern sequential recommender systems is often formulated in terms of next-item prediction. In this paper, we explore the applicability of generative transformer-based models for the Top-K sequential recommendation task, where…

Information Retrieval · Computer Science 2025-08-19 Anna Volodkevich , Danil Gusak , Anton Klenitskiy , Alexey Vasilev

Generative recommendation based on Large Language Models (LLMs) have transformed the traditional ranking-based recommendation style into a text-to-text generation paradigm. However, in contrast to standard NLP tasks that inherently operate…

Information Retrieval · Computer Science 2024-05-20 Juntao Tan , Shuyuan Xu , Wenyue Hua , Yingqiang Ge , Zelong Li , Yongfeng Zhang

Deep generative models have been wildly successful at learning coherent latent representations for continuous data such as video and audio. However, generative modeling of discrete data such as arithmetic expressions and molecular…

Machine Learning · Statistics 2017-03-07 Matt J. Kusner , Brooks Paige , José Miguel Hernández-Lobato

Generative retrieval (GR) has emerged as a transformative paradigm in search and recommender systems, leveraging numeric-based identifier representations to enhance efficiency and generalization. Notably, methods like TIGER employing…

Recent work has explored generative recommender systems as an alternative to traditional ID-based models, reframing item recommendation as a sequence generation task over discrete item tokens. While promising, such methods often…

Information Retrieval · Computer Science 2025-08-22 Simon Lepage , Jeremie Mary , David Picard

Autoregressive language models are constrained by their inherently sequential nature, generating one token at a time. This paradigm limits inference speed and parallelism, especially during later stages of generation when the direction and…

Computation and Language · Computer Science 2025-07-17 Mohammad Samragh , Arnav Kundu , David Harrison , Kumari Nishu , Devang Naik , Minsik Cho , Mehrdad Farajtabar

Recently, a novel generative retrieval (GR) paradigm has been proposed, where a single sequence-to-sequence model is learned to directly generate a list of relevant document identifiers (docids) given a query. Existing GR models commonly…

Information Retrieval · Computer Science 2024-03-20 Yubao Tang , Ruqing Zhang , Jiafeng Guo , Maarten de Rijke , Wei Chen , Xueqi Cheng

Autoregressive language models demonstrate excellent performance in various scenarios. However, the inference efficiency is limited by its one-step-one-word generation mode, which has become a pressing problem recently as the models become…

Computation and Language · Computer Science 2025-04-25 Jikai Wang , Yi Su , Juntao Li , Qingrong Xia , Zi Ye , Xinyu Duan , Zhefeng Wang , Min Zhang

Knowledge Graph (KG) generation requires models to learn complex semantic dependencies between triples while maintaining domain validity constraints. Unlike link prediction, which scores triples independently, generative models must capture…

Artificial Intelligence · Computer Science 2026-02-09 Thiviyan Thanapalasingam , Antonis Vozikis , Peter Bloem , Paul Groth

Generative design refers to computational design methods that can automatically conduct design exploration under constraints defined by designers. Among many approaches, topology optimization-based generative designs aim to explore diverse…

Computer Vision and Pattern Recognition · Computer Science 2022-10-04 Seowoo Jang , Soyoung Yoo , Namwoo Kang

Generative retrieval (GR) has emerged as a promising paradigm in recommendation systems by autoregressively decoding identifiers of target items. Despite its potential, current approaches typically rely on the next-token prediction schema,…

Information Retrieval · Computer Science 2026-02-10 Kairui Fu , Changfa Wu , Kun Yuan , Binbin Cao , Dunxian Huang , Yuliang Yan , Junjun Zheng , Jianning Zhang , Silu Zhou , Jian Wu , Kun Kuang

Recently, generative retrieval emerges as a promising alternative to traditional retrieval paradigms. It assigns each document a unique identifier, known as DocID, and employs a generative model to directly generate the relevant DocID for…

Information Retrieval · Computer Science 2024-04-16 Peitian Zhang , Zheng Liu , Yujia Zhou , Zhicheng Dou , Fangchao Liu , Zhao Cao

Generative recommenders, typically transformer-based autoregressive models, predict the next item or action from a user's interaction history. Their effectiveness depends on how the model represents where an interaction event occurs in the…

Information Retrieval · Computer Science 2025-10-24 Xiaokai Wei , Jiajun Wu , Daiyao Yi , Reza Shirkavand , Michelle Gong