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In this paper we introduce learnable lattice vector quantization and demonstrate its effectiveness for learning discrete representations. Our method, termed LL-VQ-VAE, replaces the vector quantization layer in VQ-VAE with lattice-based…

Machine Learning · Computer Science 2023-10-17 Ahmed Khalil , Robert Piechocki , Raul Santos-Rodriguez

Multimodal recommendation combines the user historical behaviors with the modal features of items to capture the tangible user preferences, presenting superior performance compared to the conventional ID-based recommender systems. However,…

Information Retrieval · Computer Science 2026-01-27 Yuzhuo Dang , Xin Zhang , Zhiqiang Pan , Yuxiao Duan , Wanyu Chen , Fei Cai , Honghui Chen

Recent advances in Multi-modal Large Language Models (MLLMs) have shown significant progress in open-world Visual Question Answering (VQA). However, integrating visual information increases the number of processed tokens, leading to higher…

Computer Vision and Pattern Recognition · Computer Science 2025-04-02 Shuai Li , Jian Xu , Xiao-Hui Li , Chao Deng , Lin-Lin Huang

Prior study has shown that pretrained language models (PLM) can boost the performance of text-based recommendation. In contrast to previous works that either use PLM to encode user history as a whole input text, or impose an additional…

Computation and Language · Computer Science 2023-05-26 Zhiming Mao , Huimin Wang , Yiming Du , Kam-fai Wong

Generative models are increasingly used in recommender systems, both for modeling user behavior as event sequences and for integrating large language models into recommendation pipelines. A key challenge in this setting is the extremely…

Information Retrieval · Computer Science 2026-02-19 Kirill Khrylchenko

Generative recommendation (GR) has emerged as a promising paradigm that predicts target items by autoregressively generating their semantic identifiers (SID). Most GR methods follow a quantization-representation-generation pipeline, first…

Information Retrieval · Computer Science 2026-05-13 Ziwei Liu , Yejing Wang , Shengyu Zhou , Xinhang Li , Xiangyu Zhao

Inductive transfer learning has had a big impact on computer vision and NLP domains but has not been used in the area of recommender systems. Even though there has been a large body of research on generating recommendations based on…

Information Retrieval · Computer Science 2020-06-11 Fajie Yuan , Xiangnan He , Alexandros Karatzoglou , Liguang Zhang

Response-free item difficulty modelling promises to reduce reliance on response-based calibration but is intrinsically difficult on reading-comprehension multiple-choice items, where difficulty depends on inferential demands across wording…

Computation and Language · Computer Science 2026-05-19 Jan Netík , Patrícia Martinková

Molecular representation learning has become a central approach in AI-driven drug discovery, yet existing molecular tokenizations such as SMILES remain largely syntactic and do not naturally align with chemically meaningful substructures.…

Machine Learning · Computer Science 2026-05-19 Takayuki Kimura

Item representations in recommendation systems are expected to reveal the properties of items. Collaborative recommender methods usually represent an item as one single latent vector. Nowadays the e-commercial platforms provide various…

Information Retrieval · Computer Science 2021-04-02 Zeyu Cui , Feng Yu , Shu Wu , Qiang Liu , Liang Wang

Vector quantization (VQ) is a key technique in high-resolution and high-fidelity image synthesis, which aims to learn a codebook to encode an image with a sequence of discrete codes and then generate an image in an auto-regression manner.…

Computer Vision and Pattern Recognition · Computer Science 2024-10-10 Guotao Liang , Baoquan Zhang , Yaowei Wang , Xutao Li , Yunming Ye , Huaibin Wang , Chuyao Luo , Kola Ye , linfeng Luo

Learning an effective outfit-level representation is critical for predicting the compatibility of items in an outfit, and retrieving complementary items for a partial outfit. We present a framework, OutfitTransformer, that uses the proposed…

Computer Vision and Pattern Recognition · Computer Science 2022-04-19 Rohan Sarkar , Navaneeth Bodla , Mariya I. Vasileva , Yen-Liang Lin , Anurag Beniwal , Alan Lu , Gerard Medioni

Cross-domain Sequential Recommendation (CDSR) aims to extract the preference from the user's historical interactions across various domains. Despite some progress in CDSR, two problems set the barrier for further advancements, i.e., overlap…

Information Retrieval · Computer Science 2025-04-28 Qidong Liu , Xiangyu Zhao , Yejing Wang , Zijian Zhang , Howard Zhong , Chong Chen , Xiang Li , Wei Huang , Feng Tian

Vector quantization is a fundamental operation for data compression and vector search. To obtain high accuracy, multi-codebook methods represent each vector using codewords across several codebooks. Residual quantization (RQ) is one such…

Machine Learning · Computer Science 2024-05-22 Iris A. M. Huijben , Matthijs Douze , Matthew Muckley , Ruud J. G. van Sloun , Jakob Verbeek

Humans can visualize new and unknown concepts from their natural language description, based on their experience and previous knowledge. Insipired by this, we present a way to extend this ability to Vision-Language Models (VLMs), teaching…

Computer Vision and Pattern Recognition · Computer Science 2025-12-18 Carlo Alberto Barbano , Luca Molinaro , Massimiliano Ciranni , Emanuele Aiello , Vito Paolo Pastore , Marco Grangetto

Human decision-making often involves combining similar states into categories and reasoning at the level of the categories rather than the actual states. Guided by this intuition, we propose a novel method for clustering state features in…

Machine Learning · Computer Science 2022-11-15 Liang Zhang , Justin Lieffers , Adarsh Pyarelal

Recommender systems are ubiquitous in on-line services to drive businesses. And many sequential recommender models were deployed in these systems to enhance personalization. The approach of using the transformer decoder as the sequential…

Information Retrieval · Computer Science 2025-04-15 Zan Huang

The objective of an expert recommendation system is to trace a set of candidates' expertise and preferences, recognize their expertise patterns, and identify experts. In this paper, we introduce a multimodal classification approach for…

Information Retrieval · Computer Science 2021-08-25 N. Nikzad-Khasmakhi , M. A. Balafar , M. Reza Feizi-Derakhshi , Cina Motamed

Representing code changes as numeric feature vectors, i.e., code change representations, is usually an essential step to automate many software engineering tasks related to code changes, e.g., commit message generation and just-in-time…

Software Engineering · Computer Science 2023-02-09 Zhongxin Liu , Zhijie Tang , Xin Xia , Xiaohu Yang

The text of a review expresses the sentiment a customer has towards a particular product. This is exploited in sentiment analysis where machine learning models are used to predict the review score from the text of the review. Furthermore,…

Information Retrieval · Computer Science 2018-04-19 Alberto Garcia-Duran , Roberto Gonzalez , Daniel Onoro-Rubio , Mathias Niepert , Hui Li