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Video question answering (VideoQA) is challenging given its multimodal combination of visual understanding and natural language processing. While most existing approaches ignore the visual appearance-motion information at different temporal…

计算机视觉与模式识别 · 计算机科学 2022-05-10 Min Peng , Chongyang Wang , Yuan Gao , Yu Shi , Xiang-Dong Zhou

Recently, graph neural networks have shown the superiority of modeling the complex topological structures in heterogeneous network-based recommender systems. Due to the diverse interactions among nodes and abundant semantics emerging from…

机器学习 · 计算机科学 2022-08-04 Tiankai Gu , Chaokun Wang , Cheng Wu , Jingcao Xu , Yunkai Lou , Changping Wang , Kai Xu , Can Ye , Yang Song

Videos contain multi-modal content, and exploring multi-level cross-modal interactions with natural language queries can provide great prominence to text-video retrieval task (TVR). However, new trending methods applying large-scale…

多媒体 · 计算机科学 2022-08-23 Shuo Liu , Weize Quan , Ming Zhou , Sihong Chen , Jian Kang , Zhe Zhao , Chen Chen , Dong-Ming Yan

Collaborative filtering is one of the most used approaches for providing recommendations in various online environments. Even though collaborative recommendation methods have been widely utilized due to their simplicity and ease of use,…

信息检索 · 计算机科学 2018-04-25 Nikolaos Polatidis , Christos K. Georgiadis

The recommendation systems aim to improve the user engagement by recommending appropriate personalized content to users, exploiting information about their preferences. We propose the enabler, a hybrid recommendation system which employs…

信息检索 · 计算机科学 2019-01-08 Evripidis Tzamousis , Maria Papadopouli

Retrieval over visually rich documents is essential for tasks such as legal discovery, scientific search, and enterprise knowledge management. Existing approaches fall into two paradigms: single-vector retrieval, which is efficient but…

信息检索 · 计算机科学 2026-04-21 Juyeon Kim , Geon Lee , Dongwon Choi , Taeuk Kim , Kijung Shin

As a fundamental problem in ubiquitous computing and machine learning, sensor-based human activity recognition (HAR) has drawn extensive attention and made great progress in recent years. HAR aims to recognize human activities based on the…

信号处理 · 电气工程与系统科学 2022-03-01 Yimu Wang , Kun Yu , Yan Wang , Hui Xue

Weighted twin support vector machines (WLTSVM) mines as much potential similarity information in samples as possible to improve the common short-coming of non-parallel plane classifiers. Compared with twin support vector machines (TWSVM),…

机器学习 · 统计学 2022-01-28 Ruxin Xu , Huiru Wang

Most existing Heterogeneous Information Network (HIN) embedding methods focus on static environments while neglecting the evolving characteristic of realworld networks. Although several dynamic embedding methods have been proposed, they are…

社会与信息网络 · 计算机科学 2020-11-13 Zhenghao Zhang , Jianbin Huang , Qinglin Tan

In industrial recommendation systems on websites and apps, it is essential to recall and predict top-n results relevant to user interests from a content pool of billions within milliseconds. To cope with continuous data growth and improve…

信息检索 · 计算机科学 2024-11-06 Qiang Zhang , Zhipeng Teng , Disheng Wu , Jiayin Wang

The multi-view hash method converts heterogeneous data from multiple views into binary hash codes, which is one of the critical technologies in multimedia retrieval. However, the current methods mainly explore the complementarity among…

计算机视觉与模式识别 · 计算机科学 2024-01-17 Jian Zhu , Yu Cui , Zhangmin Huang , Xingyu Li , Lei Liu , Lingfang Zeng , Li-Rong Dai

Attributes, such as metadata and profile, carry useful information which in principle can help improve accuracy in recommender systems. However, existing approaches have difficulty in fully leveraging attribute information due to practical…

信息检索 · 计算机科学 2018-05-31 Kuan Liu , Xing Shi , Prem Natarajan

We propose here two new recommendation methods, based on the appropriate normalization of already existing similarity measures, and on the convex combination of the recommendation scores derived from similarity between users and between…

物理与社会 · 物理学 2014-12-12 A. Fiasconaro , M. Tumminello , V. Nicosia , V. Latora , R. N. Mantegna

Visual dialog is a challenging vision-language task in which a series of questions visually grounded by a given image are answered. To resolve the visual dialog task, a high-level understanding of various multimodal inputs (e.g., question,…

人工智能 · 计算机科学 2020-10-08 Sungjin Park , Taesun Whang , Yeochan Yoon , Heuiseok Lim

Researchers have begun to utilize heterogeneous knowledge graphs (KGs) as auxiliary information in recommendation systems to mitigate the cold start and sparsity issues. However, utilizing a graph neural network (GNN) to capture information…

信息检索 · 计算机科学 2020-05-27 Chang-You Tai , Meng-Ru Wu , Yun-Wei Chu , Shao-Yu Chu , Lun-Wei Ku

Content-based and collaborative filtering methods are the most successful solutions in recommender systems. Content based method is based on items attributes. This method checks the features of users favourite items and then proposes the…

信息检索 · 计算机科学 2014-02-14 Niloofar Rastin , Mansoor Zolghadri Jahromi

Attention is typically used to select informative sub-phrases that are used for prediction. This paper investigates the novel use of attention as a form of feature augmentation, i.e, casted attention. We propose Multi-Cast Attention…

计算与语言 · 计算机科学 2018-06-05 Yi Tay , Luu Anh Tuan , Siu Cheung Hui

Recent years have witnessed remarkable progress in 3D content generation. However, corresponding evaluation methods struggle to keep pace. Automatic approaches have proven challenging to align with human preferences, and the mixed…

计算机视觉与模式识别 · 计算机科学 2024-12-10 Weitao Wang , Haoran Xu , Yuxiao Yang , Zhifang Liu , Jun Meng , Haoqian Wang

The increasing availability and diversity of multimodal data in recommender systems offer new avenues for enhancing recommendation accuracy and user satisfaction. However, these systems must contend with high-dimensional, sparse user-item…

信息检索 · 计算机科学 2024-12-04 Yasser Khalafaoui , Martino Lovisetto , Basarab Matei , Nistor Grozavu

Collaborative filtering (CF) is the key technique for recommender systems (RSs). CF exploits user-item behavior interactions (e.g., clicks) only and hence suffers from the data sparsity issue. One research thread is to integrate auxiliary…

人工智能 · 计算机科学 2020-10-19 Guangneng Hu , Yu Zhang , Qiang Yang