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Traditional Collaborative Filtering (CF) based methods are applied to understand the personal preferences of users/customers for items or products from the rating matrix. Usually, the rating matrix is sparse in nature. So there are some…

Information Retrieval · Computer Science 2022-10-12 Supriyo Mandal , Abyayananda Maiti

Finetuning can be used to tackle domain-specific tasks by transferring knowledge. Previous studies on finetuning focused on adapting only the weights of a task-specific classifier or re-optimizing all layers of the pre-trained model using…

Machine Learning · Computer Science 2023-01-18 Basel Barakat , Qiang Huang

In this paper we propose RecFusion, which comprise a set of diffusion models for recommendation. Unlike image data which contain spatial correlations, a user-item interaction matrix, commonly utilized in recommendation, lacks spatial…

Information Retrieval · Computer Science 2023-09-11 Gabriel Bénédict , Olivier Jeunen , Samuele Papa , Samarth Bhargav , Daan Odijk , Maarten de Rijke

A fast-paced development of DeepFake generation techniques challenge the detection schemes designed for known type DeepFakes. A reliable Deepfake detection approach must be agnostic to generation types, which can present diverse quality and…

Computer Vision and Pattern Recognition · Computer Science 2023-02-28 Ying Xu , Kiran Raja , Luisa Verdoliva , Marius Pedersen

In this paper, we propose a novel ranking framework for collaborative filtering with the overall aim of learning user preferences over items by minimizing a pairwise ranking loss. We show the minimization problem involves dependent random…

Group recommendation aims at providing optimized recommendations tailored to diverse groups, enabling groups to enjoy appropriate items. On the other hand, most existing group recommendation methods are built upon deep neural network (DNN)…

Information Retrieval · Computer Science 2025-02-14 Chae-Hyun Kim , Yoon-Ryung Choi , Jin-Duk Park , Won-Yong Shin

Brain-computer interfaces (BCIs), is ways for electronic devices to communicate directly with the brain. For most medical-type brain-computer interface tasks, the activity of multiple units of neurons or local field potentials is sufficient…

Machine Learning · Computer Science 2022-05-25 Lang Qian , Shengjie Zheng , Chunshan Deng , Cheng Yang , Xiaojian Li

Ensuring the functional safety of highly configurable systems often requires testing representative subsets of all possible configurations to reduce testing effort and save resources. The ratio of covered t-wise feature interactions (i.e.,…

Software Engineering · Computer Science 2024-07-01 Tobias Pett , Sebastian Krieter , Thomas Thüm , Ina Schaefer

Even when starting with a very poor initial guess, the iterative configuration interaction (iCI) approach can converge from above to full CI very quickly by constructing and diagonalizing a small Hamiltonian matrix at each…

Chemical Physics · Physics 2020-01-07 Ning Zhang , Wenjian Liu , Mark R. Hoffmann

Interactive recommender systems that enable the interactions between users and the recommender system have attracted increasing research attentions. Previous methods mainly focus on optimizing recommendation accuracy. However, they usually…

Information Retrieval · Computer Science 2019-07-04 Yong Liu , Yingtai Xiao , Qiong Wu , Chunyan Miao , Juyong Zhang

Multi-task learning is an effective learning strategy for deep-learning-based facial expression recognition tasks. However, most existing methods take into limited consideration the feature selection, when transferring information between…

Computer Vision and Pattern Recognition · Computer Science 2021-11-30 Rui Zhao , Tianshan Liu , Jun Xiao , Daniel P. K. Lun , Kin-Man Lam

User evaluations include a significant quantity of information across online platforms. This information source has been neglected by the majority of existing recommendation systems, despite its potential to ease the sparsity issue and…

Information Retrieval · Computer Science 2022-06-24 Aristeidis Karras , Christos Karras

Implicit feedback is widely explored by modern recommender systems. Since the feedback is often sparse and imbalanced, it poses great challenges to the learning of complex interactions among users and items. Metric learning has been…

Information Retrieval · Computer Science 2021-03-30 Yanchao Tan , Carl Yang , Xiangyu Wei , Yun Ma , Xiaolin Zheng

Collaborative Filtering (CF) is widely used in large-scale recommendation engines because of its efficiency, accuracy and scalability. However, in practice, the fact that recommendation engines based on CF require interactions between users…

Information Retrieval · Computer Science 2016-11-18 Jianbo Yuan , Walid Shalaby , Mohammed Korayem , David Lin , Khalifeh AlJadda , Jiebo Luo

Learning feature interaction is the critical backbone to building recommender systems. In web-scale applications, learning feature interaction is extremely challenging due to the sparse and large input feature space; meanwhile, manually…

Information Retrieval · Computer Science 2023-11-13 Huan Gui , Ruoxi Wang , Ke Yin , Long Jin , Maciej Kula , Taibai Xu , Lichan Hong , Ed H. Chi

Relevant and high-quality data are critical to successful development of machine learning applications. For machine learning applications on dynamic systems equipped with a large number of sensors, such as connected vehicles and robots, how…

Machine Learning · Computer Science 2021-08-31 Alp Sahin , Xiangrui Zeng

Feature selection is a core area of data mining with a recent innovation of graph-driven unsupervised feature selection for linked data. In this setting we have a dataset $\mathbf{Y}$ consisting of $n$ instances each with $m$ features and a…

Machine Learning · Computer Science 2020-07-07 Zilong Bai , Hoa Nguyen , Ian Davidson

Accurate user interest modeling is vital for recommendation scenarios. One of the effective solutions is the sequential recommendation that relies on click behaviors, but this is not elegant in the video feed recommendation where users are…

Information Retrieval · Computer Science 2023-02-13 Guanyu Lin , Chen Gao , Yu Zheng , Jianxin Chang , Yanan Niu , Yang Song , Zhiheng Li , Depeng Jin , Yong Li

In real-world recommendation scenarios, users engage with items through various types of behaviors. Leveraging diversified user behavior information for learning can enhance the recommendation of target behaviors (e.g., buy), as…

Information Retrieval · Computer Science 2025-02-05 Chenhao Zhai , Chang Meng , Yu Yang , Kexin Zhang , Xuhao Zhao , Xiu Li

Spatial and temporal stream model has gained great success in video action recognition. Most existing works pay more attention to designing effective features fusion methods, which train the two-stream model in a separate way. However, it's…

Computer Vision and Pattern Recognition · Computer Science 2019-08-28 Jingran Zhang , Fumin Shen , Xing Xu , Heng Tao Shen