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Modeling sequential interactions between users and items/products is crucial in domains such as e-commerce, social networking, and education. Representation learning presents an attractive opportunity to model the dynamic evolution of users…

Social and Information Networks · Computer Science 2019-08-06 Srijan Kumar , Xikun Zhang , Jure Leskovec

Spatiotemporal graph neural networks have shown to be effective in time series forecasting applications, achieving better performance than standard univariate predictors in several settings. These architectures take advantage of a graph…

Machine Learning · Computer Science 2023-11-13 Andrea Cini , Ivan Marisca , Daniele Zambon , Cesare Alippi

Recommender systems learn from past user behavior to predict future user preferences. Intuitively, it has been established that the most recent interactions are more indicative of future preferences than older interactions. Many…

Information Retrieval · Computer Science 2025-08-07 Joey De Pauw , Bart Goethals

Most recommender systems treat timestamps as numeric or cyclical values, overlooking real-world context such as holidays, events, and seasonal patterns. We propose a scalable framework that uses large language models (LLMs) to generate…

Information Retrieval · Computer Science 2025-10-29 Yejin Kim , Shaghayegh Agah , Mayur Nankani , Neeraj Sharma , Feifei Peng , Maria Peifer , Sardar Hamidian , H Howie Huang

Intermittent time series, characterised by the presence of a significant amount of zeros, constitute a large percentage of inventory items in supply chain. Probabilistic forecasts are needed to plan the inventory levels; the predictive…

Machine Learning · Statistics 2026-01-21 Stefano Damato , Nicolò Rubattu , Dario Azzimonti , Giorgio Corani

Detecting fashion landmarks is a fundamental technique for visual clothing analysis. Due to the large variation and non-rigid deformation of clothes, localizing fashion landmarks suffers from large spatial variances across poses, scales,…

Computer Vision and Pattern Recognition · Computer Science 2019-08-29 Sumin Lee , Sungchan Oh , Chanho Jung , Changick Kim

Bipartite graph embedding (BGE) maps nodes to compressed embedding vectors that can reflect the hidden topological features of the network, and learning high-quality BGE is crucial for facilitating downstream applications such as…

Social and Information Networks · Computer Science 2024-10-15 Shanfan Zhang , Yongyi Lin , Yuan Rao , Zhan Bu

Time series data analysis is prevalent across various domains, including finance, healthcare, and environmental monitoring. Traditional time series clustering methods often struggle to capture the complex temporal dependencies inherent in…

Machine Learning · Computer Science 2024-11-27 Amirabbas Afzali , Hesam Hosseini , Mohmmadamin Mirzai , Arash Amini

Sequential recommender systems aim to predict a user's future interests by extracting temporal patterns from their behavioral history. Existing approaches typically employ transformer-based architectures to process long sequences of user…

Information Retrieval · Computer Science 2026-02-24 Adamya Shyam , Venkateswara Rao Kagita , Bharti Rana , Vikas Kumar

In this work, we present a method for node embedding in temporal graphs. We propose an algorithm that learns the evolution of a temporal graph's nodes and edges over time and incorporates this dynamics in a temporal node embedding framework…

Machine Learning · Computer Science 2021-05-20 Uriel Singer , Ido Guy , Kira Radinsky

Effective user modeling requires distinguishing between short-term and long-term preference evolution. While item embeddings have become a key component of recommender systems, standard approaches like Item2Vec treat user histories as…

Information Retrieval · Computer Science 2026-04-20 Rafael T. Sereicikas , Pedro R. Pires , Gregorio F. Azevedo , Tiago A. Almeida

Attaching attributes (such as color, shape, state, action) to object categories is an important computer vision problem. Attribute prediction has seen exciting recent progress and is often formulated as a multi-label classification problem.…

Computer Vision and Pattern Recognition · Computer Science 2022-03-16 Kareem Metwaly , Aerin Kim , Elliot Branson , Vishal Monga

Graphs are a powerful representation tool in machine learning applications, with link prediction being a key task in graph learning. Temporal link prediction in dynamic networks is of particular interest due to its potential for solving…

Machine Learning · Computer Science 2024-01-17 Sanaz Hasanzadeh Fard , Mohammad Ghassemi

Modeling a sequence of interactions between users and items (e.g., products, posts, or courses) is crucial in domains such as e-commerce, social networking, and education to predict future interactions. Representation learning presents an…

Social and Information Networks · Computer Science 2018-12-07 Srijan Kumar , Xikun Zhang , Jure Leskovec

Representation learning on static graph-structured data has shown a significant impact on many real-world applications. However, less attention has been paid to the evolving nature of temporal networks, in which the edges are often changing…

Machine Learning · Computer Science 2021-08-24 Jing Ma , Qiuchen Zhang , Jian Lou , Li Xiong , Joyce C. Ho

Accurately perceiving dynamic environments is a fundamental task for autonomous driving and robotic systems. Existing methods inadequately utilize temporal information, relying mainly on local temporal interactions between adjacent frames…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Tianhao Li , Yang Li , Mengtian Li , Yisheng Deng , Weifeng Ge

Generative recommendation has emerged as a promising paradigm that formulates the recommendations into a text-to-text generation task, harnessing the vast knowledge of large language models. However, existing studies focus on considering…

Information Retrieval · Computer Science 2025-11-04 Sunkyung Lee , Seongmin Park , Jonghyo Kim , Mincheol Yoon , Jongwuk Lee

Forecasting groups of time series is of increasing practical importance, e.g. forecasting the demand for multiple products offered by a retailer or server loads within a data center. The local approach to this problem considers each time…

Machine Learning · Computer Science 2021-03-30 Pablo Montero-Manso , Rob J Hyndman

Timestamp prediction aims to determine when an image was captured using only visual information, supporting applications such as metadata correction, retrieval, and digital forensics. In outdoor scenarios, hourly estimates rely on cues like…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 David G. Shatwell , Ishan Rajendrakumar Dave , Sirnam Swetha , Mubarak Shah

Representing the nodes of continuous-time temporal graphs in a low-dimensional latent space has wide-ranging applications, from prediction to visualization. Yet, analyzing continuous-time relational data with timestamped interactions…

Machine Learning · Computer Science 2024-05-28 Raphaël Romero , Jefrey Lijffijt , Riccardo Rastelli , Marco Corneli , Tijl De Bie
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