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We introduce a novel Bayesian approach for both covariate selection and sparse precision matrix estimation in the context of high-dimensional Gaussian graphical models involving multiple responses. Our approach provides a sparse estimation…

Methodology · Statistics 2024-09-25 Anwesha Chakravarti , Naveen N. Narishetty , Feng Liang

Although the Conditional Variational AutoEncoder (CVAE) model can generate more diversified responses than the traditional Seq2Seq model, the responses often have low relevance with the input words or are illogical with the question. A…

Computation and Language · Computer Science 2022-10-12 Jiayi Liu , Wei Wei , Zhixuan Chu , Xing Gao , Ji Zhang , Tan Yan , Yulin Kang

Technological advancements have led to the rise of wearable devices with sensors that continuously monitor user activities, generating vast amounts of unlabeled data. This data is challenging to interpret, and manual annotation is…

Machine Learning · Computer Science 2025-05-09 Soham Khisa , Avijoy Chakma

Learning-to-rank (LTR) algorithms are ubiquitous and necessary to explore the extensive catalogs of media providers. To avoid the user examining all the results, its preferences are used to provide a subset of relatively small size. The…

We introduce a novel Bayesian approach for variable selection using Gaussian process regression, which is crucial for enhancing interpretability and model regularization. Our method employs nearest neighbor Gaussian processes, serving as…

In this work, we introduce the notion of Context-Based Prediction Models. A Context-Based Prediction Model determines the probability of a user's action (such as a click or a conversion) solely by relying on user and contextual features,…

Information Retrieval · Computer Science 2023-08-03 Jan Hartman , Assaf Klein , Davorin Kopič , Natalia Silberstein

This study explores the potential of open-source video conditional generation models as encoders for downstream tasks, focusing on instance segmentation using the BAIR Robot Pushing Dataset. The researchers propose using video prediction…

Computer Vision and Pattern Recognition · Computer Science 2024-05-28 James Maier , Nishanth Mohankumar

Action anticipation is the task of forecasting future activity from a partially observed sequence of events. However, this task is exposed to intrinsic future uncertainty and the difficulty of reasoning upon interconnected actions. Unlike…

Computer Vision and Pattern Recognition · Computer Science 2024-12-19 Anxhelo Diko , Danilo Avola , Bardh Prenkaj , Federico Fontana , Luigi Cinque

Visual dialog is a challenging task that requires the comprehension of the semantic dependencies among implicit visual and textual contexts. This task can refer to the relation inference in a graphical model with sparse contexts and unknown…

Computer Vision and Pattern Recognition · Computer Science 2020-04-07 Dan Guo , Hui Wang , Hanwang Zhang , Zheng-Jun Zha , Meng Wang

Discovery and learning of an underlying spatiotemporal hierarchy in sequential data is an important topic for machine learning. Despite this, little work has been done to explore hierarchical generative models that can flexibly adapt their…

Machine Learning · Computer Science 2022-03-29 Alexey Zakharov , Qinghai Guo , Zafeirios Fountas

Social recommendation is effective in improving the recommendation performance by leveraging social relations from online social networking platforms. Social relations among users provide friends' information for modeling users' interest in…

Information Retrieval · Computer Science 2021-03-17 Bairan Fu , Wenming Zhang , Guangneng Hu , Xinyu Dai , Shujian Huang , Jiajun Chen

In next basket recommendation (NBR) a set of items is recommended to users based on their historical basket sequences. In many domains, the recommended baskets consist of both repeat items and explore items. Some state-of-the-art NBR…

Information Retrieval · Computer Science 2025-01-14 Yuanna Liu , Ming Li , Mohammad Aliannejadi , Maarten de Rijke

In the current deep learning based recommendation system, the embedding method is generally employed to complete the conversion from the high-dimensional sparse feature vector to the low-dimensional dense feature vector. However, as the…

Information Retrieval · Computer Science 2021-08-10 Huimin Zhou , Qing Li , Yong Jiang , Rongwei Yang , Zhuyun Qi

Sequential recommendation aims to predict the next item a user is likely to prefer based on their sequential interaction history. Recently, text-based sequential recommendation has emerged as a promising paradigm that uses pre-trained…

Information Retrieval · Computer Science 2024-09-05 Hyunsoo Kim , Junyoung Kim , Minjin Choi , Sunkyung Lee , Jongwuk Lee

Recent studies on pre-trained vision/language models have demonstrated the practical benefit of a new, promising solution-building paradigm in AI where models can be pre-trained on broad data describing a generic task space and then adapted…

Information Retrieval · Computer Science 2024-01-09 Ziqian Lin , Hao Ding , Nghia Trong Hoang , Branislav Kveton , Anoop Deoras , Hao Wang

Variational autoencoders allow to learn a lower-dimensional latent space based on high-dimensional input/output data. Using video clips as input data, the encoder may be used to describe the movement of an object in the video without ground…

Machine Learning · Computer Science 2023-05-17 Thomas Beckers , Qirui Wu , George J. Pappas

Deep learning provides accurate collaborative filtering models to improve recommender system results. Deep matrix factorization and their related collaborative neural networks are the state-of-art in the field; nevertheless, both models…

Information Retrieval · Computer Science 2021-07-28 Jesús Bobadilla , Fernando Ortega , Abraham Gutiérrez , Ángel González-Prieto

Despite the central role of action in embodied intelligence, learning transferable action representations from visual transitions remains a fundamental challenge, particularly when world models must generalize across embodiments under…

Robotics · Computer Science 2026-05-19 Hongjia Liu , Fan Feng , Minghao Fu , Xinyue Wang , Haofei Lu , Biwei Huang

Multi-behavior recommendation, which exploits auxiliary behaviors (e.g., click and cart) to help predict users' potential interactions on the target behavior (e.g., buy), is regarded as an effective way to alleviate the data sparsity or…

Information Retrieval · Computer Science 2023-03-29 Zhiyong Cheng , Sai Han , Fan Liu , Lei Zhu , Zan Gao , Yuxin Peng

Visual question answering requires a deep understanding of both images and natural language. However, most methods mainly focus on visual concept; such as the relationships between various objects. The limited use of object categories…

Computer Vision and Pattern Recognition · Computer Science 2021-01-25 Jung-Jun Kim , Dong-Gyu Lee , Jialin Wu , Hong-Gyu Jung , Seong-Whan Lee