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Traditional feature selections need to know the feature space before learning, and online streaming feature selection (OSFS) is proposed to process streaming features on the fly. Existing methods divide features into relevance or…

Machine Learning · Computer Science 2023-03-01 RuiYang Xu , Di Wu , Xin Luo

In this paper we present a theoretical analysis to understand sparse filtering, a recent and effective algorithm for unsupervised learning. The aim of this research is not to show whether or how well sparse filtering works, but to…

Machine Learning · Computer Science 2021-05-25 Fabio Massimo Zennaro , Ke Chen

Existing work in continual learning (CL) focuses on mitigating catastrophic forgetting, i.e., model performance deterioration on past tasks when learning a new task. However, the training efficiency of a CL system is under-investigated,…

Machine Learning · Computer Science 2022-09-21 Zifeng Wang , Zheng Zhan , Yifan Gong , Geng Yuan , Wei Niu , Tong Jian , Bin Ren , Stratis Ioannidis , Yanzhi Wang , Jennifer Dy

Federated learning (FL) enables edge devices to collaboratively learn a model in a distributed fashion. Many existing researches have focused on improving communication efficiency of high-dimensional models and addressing bias caused by…

Distributed, Parallel, and Cluster Computing · Computer Science 2022-04-06 Yuzhu Mao , Zihao Zhao , Meilin Yang , Le Liang , Yang Liu , Wenbo Ding , Tian Lan , Xiao-Ping Zhang

Learning sparse coordination graphs adaptive to the coordination dynamics among agents is a long-standing problem in cooperative multi-agent learning. This paper studies this problem and proposes a novel method using the variance of payoff…

Machine Learning · Computer Science 2022-06-15 Tonghan Wang , Liang Zeng , Weijun Dong , Qianlan Yang , Yang Yu , Chongjie Zhang

Temporal data (such as news articles or Twitter feeds) often consists of a mixture of long-lasting trends and popular but short-lasting topics of interest. A truly successful topic modeling strategy should be able to detect both types of…

Information Retrieval · Computer Science 2023-09-04 Lara Kassab , Alona Kryshchenko , Hanbaek Lyu , Denali Molitor , Deanna Needell , Elizaveta Rebrova , Jiahong Yuan

Calcium imaging has become a fundamental neural imaging technique, aiming to recover the individual activity of hundreds of neurons in a cortical region. Current methods (mostly matrix factorization) are aimed at detecting neurons in the…

Applications · Statistics 2019-02-11 Gal Mishne , Adam S. Charles

Discriminative correlation filters (DCF) with deep convolutional features have achieved favorable performance in recent tracking benchmarks. However, most of existing DCF trackers only consider appearance features of current frame, and…

Computer Vision and Pattern Recognition · Computer Science 2018-02-28 Zheng Zhu , Wei Wu , Wei Zou , Junjie Yan

In category learning, a growing body of literature has increasingly focused on exploring the impacts of interleaving in contrast to blocking. The sequential attention hypothesis posits that interleaving draws attention to the differences…

Computers and Society · Computer Science 2024-07-23 Meng Cao , Philip I. Pavlik , Wei Chu , Liang Zhang

Despite advances in deep learning for education, student knowledge tracing and behavior modeling face persistent challenges: limited personalization, inadequate modeling of diverse learning activities (especially non-assessed materials),…

Artificial Intelligence · Computer Science 2025-05-21 Soroush Hashemifar , Sherry Sahebi

Attention serves as the fundamental mechanism for long-context modeling in large language models (LLMs), yet dense attention becomes structurally prohibitive for long sequences due to its quadratic complexity. Consequently, sparse attention…

Computation and Language · Computer Science 2026-01-07 Junxiang Qiu , Shuo Wang , Zhengsu Chen , Hengheng Zhang , Jinda Lu , Changcheng Li , Qi Tian

Benefiting from the self-attention mechanism, Transformer models have attained impressive contextual comprehension capabilities for lengthy texts. The requirements of high-throughput inference arise as the large language models (LLMs)…

Hardware Architecture · Computer Science 2024-07-16 Huizheng Wang , Jiahao Fang , Xinru Tang , Zhiheng Yue , Jinxi Li , Yubin Qin , Sihan Guan , Qize Yang , Yang Wang , Chao Li , Yang Hu , Shouyi Yin

Actions are more than just movements and trajectories: we cook to eat and we hold a cup to drink from it. A thorough understanding of videos requires going beyond appearance modeling and necessitates reasoning about the sequence of…

Computer Vision and Pattern Recognition · Computer Science 2017-07-25 Gunnar A. Sigurdsson , Santosh Divvala , Ali Farhadi , Abhinav Gupta

Accommodating long sequences efficiently in autoregressive Transformers, especially within an extended context window, poses significant challenges due to the quadratic computational complexity and substantial KV memory requirements…

Computation and Language · Computer Science 2024-06-25 Chao Lou , Zixia Jia , Zilong Zheng , Kewei Tu

Video text-based visual question answering (Video TextVQA) task aims to answer questions about videos by leveraging the visual text appearing within the videos. This task poses significant challenges, requiring models to accurately perceive…

Computer Vision and Pattern Recognition · Computer Science 2025-11-26 Haibin He , Qihuang Zhong , Juhua Liu , Bo Du , Peng Wang , Jing Zhang

We present a supervised-learning algorithm from graph data (a set of graphs) for arbitrary twice-differentiable loss functions and sparse linear models over all possible subgraph features. To date, it has been shown that under all possible…

Machine Learning · Statistics 2014-03-21 Ichigaku Takigawa , Hiroshi Mamitsuka

Applying reinforcement learning (RL) to sparse reward domains is notoriously challenging due to insufficient guiding signals. Common RL techniques for addressing such domains include (1) learning from demonstrations and (2) curriculum…

Machine Learning · Computer Science 2023-03-29 Vaibhav Bajaj , Guni Sharon , Peter Stone

Classifiers are among the most widely used supervised machine learning algorithms. Many classification models exist, and choosing the right one for a given task is difficult. During model selection and debugging, data scientists need to…

Machine Learning · Computer Science 2020-10-15 Andreas Hinterreiter , Peter Ruch , Holger Stitz , Martin Ennemoser , Jürgen Bernard , Hendrik Strobelt , Marc Streit

Traditional Large Language Model (LLM) pretraining relies on autoregressive language modeling with randomly sampled data from web-scale datasets. Inspired by human learning techniques like spaced repetition, we hypothesize that random…

Computation and Language · Computer Science 2025-01-30 Neha Prakriya , Jui-Nan Yen , Cho-Jui Hsieh , Jason Cong

Knowledge tracing aims to model students' past answer sequences to track the change in their knowledge acquisition during exercise activities and to predict their future learning performance. Most existing approaches ignore the fact that…

Machine Learning · Computer Science 2023-02-07 Yuqi Yue , Xiaoqing Sun , Weidong Ji , Zengxiang Yin , Chenghong Sun