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Despite notable advancements in Retrieval-Augmented Generation (RAG) systems that expand large language model (LLM) capabilities through external retrieval, these systems often struggle to meet the complex and diverse needs of real-world…

Computation and Language · Computer Science 2025-03-13 Jinyu Wang , Jingjing Fu , Rui Wang , Lei Song , Jiang Bian

Exploiting the relationships between attributes is a key challenge for improving multiple facial attribute recognition. In this work, we are concerned with two types of correlations that are spatial and non-spatial relationships. For the…

Computer Vision and Pattern Recognition · Computer Science 2021-05-31 Zhenghao Chen , Shuhang Gu , Feng Zhu , Jing Xu , Rui Zhao

Learning knowledge representation is an increasingly important technology applicable in many domain-specific machine learning problems. We discuss the effectiveness of traditional Link Prediction or Knowledge Graph Completion evaluation…

Artificial Intelligence · Computer Science 2020-02-24 Jianyu Liu , Hegler Tissot

Incorporating knowledge bases (KB) into end-to-end task-oriented dialogue systems is challenging, since it requires to properly represent the entity of KB, which is associated with its KB context and dialogue context. The existing works…

Computation and Language · Computer Science 2021-09-30 Yanjie Gou , Yinjie Lei , Lingqiao Liu , Yong Dai , Chunxu Shen

Action in video usually involves the interaction of human with objects. Action labels are typically composed of various combinations of verbs and nouns, but we may not have training data for all possible combinations. In this paper, we aim…

Computer Vision and Pattern Recognition · Computer Science 2022-07-06 Zhekun Luo , Shalini Ghosh , Devin Guillory , Keizo Kato , Trevor Darrell , Huijuan Xu

We present Knowledge Rocks, an implementation strategy and guideline for augmenting visualization systems to knowledge-assisted visualization systems, as defined by the KAVA model. Visualization systems become more and more sophisticated.…

Human-Computer Interaction · Computer Science 2021-11-09 Anna-Pia Lohfink , Simon D. Duque Anton , Heike Leitte , Christoph Garth

Integration between biology and information science benefits both fields. Many related models have been proposed, such as computational visual cognition models, computational motor control models, integrations of both and so on. In general,…

Computer Vision and Pattern Recognition · Computer Science 2016-03-28 Peijie Yin , Hong Qiao , Wei Wu , Lu Qi , YinLin Li , Shanlin Zhong , Bo Zhang

In recent years, the use of edge information provided by knowledge graphs together with the advantages of higher-order connectivity in graph neural networks for recommendation systems has become an important research direction. However,…

Information Retrieval · Computer Science 2026-05-12 Zhifei Hu , Feng Xia

Multimodal fusion leverages information across modalities to learn better feature representations with the goal of improving performance in fusion-based tasks. However, multimodal datasets, especially in medical settings, are typically…

Machine Learning · Computer Science 2025-02-05 Alejandro Guerra-Manzanares , Farah E. Shamout

Personalized recommendation is a key feature of intelligent tutoring systems, typically relying on accurate models of student knowledge. Knowledge Tracing (KT) models enable this by estimating a student's mastery based on their historical…

Machine Learning · Computer Science 2025-08-25 Yahya Badran , Christine Preisach

Retrieval-augmented generation (RAG) has emerged as a promising technology for addressing hallucination issues in the responses generated by large language models (LLMs). Existing studies on RAG primarily focus on applying semantic-based…

Computation and Language · Computer Science 2025-02-12 Xiangrong Zhu , Yuexiang Xie , Yi Liu , Yaliang Li , Wei Hu

Knowledge-based Visual Question Answering (VQA) expects models to rely on external knowledge for robust answer prediction. Though significant it is, this paper discovers several leading factors impeding the advancement of current…

Computer Vision and Pattern Recognition · Computer Science 2022-07-01 Yangyang Guo , Liqiang Nie , Yongkang Wong , Yibing Liu , Zhiyong Cheng , Mohan Kankanhalli

Egocentric activity recognition in first-person videos has an increasing importance with a variety of applications such as lifelogging, summarization, assisted-living and activity tracking. Existing methods for this task are based on…

Computer Vision and Pattern Recognition · Computer Science 2020-05-01 Mehmet Ali Arabacı , Fatih Özkan , Elif Surer , Peter Jančovič , Alptekin Temizel

This paper presents a novel approach for automatic recognition of human activities for video surveillance applications. We propose to represent an activity by a combination of category components, and demonstrate that this approach offers…

Computer Vision and Pattern Recognition · Computer Science 2015-03-03 Weiyao Lin , Ming-Ting Sun , Radha Poovendran , Zhengyou Zhang

Despite the growing adoption of mixed reality and interactive AI agents, it remains challenging for these systems to generate high quality 2D/3D scenes in unseen environments. The common practice requires deploying an AI agent to collect…

Computer Vision and Pattern Recognition · Computer Science 2023-05-02 Qiuyuan Huang , Jae Sung Park , Abhinav Gupta , Paul Bennett , Ran Gong , Subhojit Som , Baolin Peng , Owais Khan Mohammed , Chris Pal , Yejin Choi , Jianfeng Gao

Human action understanding is a fundamental and challenging task in computer vision. Although there exists tremendous research on this area, most works focus on action recognition, while action retrieval has received less attention. In this…

Computer Vision and Pattern Recognition · Computer Science 2024-07-30 Hongsong Wang , Jianhua Zhao , Jie Gui

Tacit knowledge plays a central role in human expertise, yet it remains difficult to capture, formalize, and reuse in machine-interpretable form. This challenge is especially relevant in procedural domains, where successful execution…

In the field of face recognition, a model learns to distinguish millions of face images with fewer dimensional embedding features, and such vast information may not be properly encoded in the conventional model with a single branch. We…

Computer Vision and Pattern Recognition · Computer Science 2020-05-26 Yonghyun Kim , Wonpyo Park , Myung-Cheol Roh , Jongju Shin

We introduce Knowledge Fusion Transformers for video action classification. We present a self-attention based feature enhancer to fuse action knowledge in 3D inception based spatio-temporal context of the video clip intended to be…

Computer Vision and Pattern Recognition · Computer Science 2020-10-01 Ganesh Samarth , Sheetal Ojha , Nikhil Pareek

Social connections play a vital role in improving the performance of recommendation systems (RS). However, incorporating social information into RS is challenging. Most existing models usually consider social influences in a given session,…

Information Retrieval · Computer Science 2020-08-12 Liqiang Song , Ye Bi , Mengqiu Yao , Zhenyu Wu , Jianming Wang , Jing Xiao