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We consider the task of linking social media accounts that belong to the same author in an automated fashion on the basis of the content and metadata of their corresponding document streams. We focus on learning an embedding that maps…

社会与信息网络 · 计算机科学 2021-05-18 Aleem Khan , Elizabeth Fleming , Noah Schofield , Marcus Bishop , Nicholas Andrews

Visual Prompting is a technique for teaching models to perform a visual task via in-context examples, without any additional training. In this work, we analyze the activations of MAE-VQGAN, a recent Visual Prompting model, and find task…

计算机视觉与模式识别 · 计算机科学 2024-10-08 Alberto Hojel , Yutong Bai , Trevor Darrell , Amir Globerson , Amir Bar

Most existing recommender systems leverage user behavior data of one type only, such as the purchase behavior in E-commerce that is directly related to the business KPI (Key Performance Indicator) of conversion rate. Besides the key…

信息检索 · 计算机科学 2020-02-11 Chen Gao , Xiangnan He , Dahua Gan , Xiangning Chen , Fuli Feng , Yong Li , Tat-Seng Chua , Lina Yao , Yang Song , Depeng Jin

Students' engagements reflect their level of involvement in an ongoing learning process which can be estimated through their interactions with a computer-based learning or assessment system. A pre-requirement for stimulating student…

计算机与社会 · 计算机科学 2024-03-12 R. Maqsood , P. Ceravolo , C. Romero , S. Ventura

Uncertainty estimation is at the core of Active Learning (AL). Most existing methods resort to complex auxiliary models and advanced training fashions to estimate uncertainty for unlabeled data. These models need special design and hence…

计算机视觉与模式识别 · 计算机科学 2025-09-22 Tianyang Wang , Xi Xiao , Gaofei Chen , Xiaoying Liao , Guo Cheng , Yingrui Ji

Large language models achieve strong reasoning performance, yet existing decoding strategies either explore blindly (random sampling) or redundantly (independent multi-sampling). We propose Entropy-Tree, a tree-based decoding method that…

计算与语言 · 计算机科学 2026-01-23 Longxuan Wei , Yubo Zhang , Zijiao Zhang , Zhihu Wang , Shiwan Zhao , Tianyu Huang , Huiting Zhao , Chenfei Liu , Shenao Zhang , Junchi Yan

Knowledge tracing (KT) aims to estimate a student's evolving knowledge state and predict their performance on new exercises based on performance history. Many realistic classroom settings for KT are typically low-resource in data and…

计算与语言 · 计算机科学 2025-06-12 Xinyi Gao , Qiucheng Wu , Yang Zhang , Xuechen Liu , Kaizhi Qian , Ying Xu , Shiyu Chang

The rapid growth of 5G video streaming is intensifying energy consumption across access, core, and data-center networks, underscoring the critical need for energy and carbon-efficient solutions. While reducing streaming bitrates improves…

新兴技术 · 计算机科学 2026-01-30 Konstantinos Varsos , Adamantia Stamou , George D. Stamoulis , Vasillios A. Siris

On social platforms like Twitter, strategic targeted attacks are becoming increasingly common, especially against vulnerable groups such as female journalists. Two key challenges in identifying strategic online behavior are the complex…

社会与信息网络 · 计算机科学 2025-10-21 Yian Wang , Mukhilshankar Umashankar , Eshwar Chandrasekharan , Hari Sundaram

This work introduces a novel interpretable machine learning method called Mixture of Decision Trees (MoDT). It constitutes a special case of the Mixture of Experts ensemble architecture, which utilizes a linear model as gating function and…

机器学习 · 计算机科学 2022-11-29 Simeon Brüggenjürgen , Nina Schaaf , Pascal Kerschke , Marco F. Huber

This paper describes a set of comparative experiments for the problem of automatically filtering unwanted electronic mail messages. Several variants of the AdaBoost algorithm with confidence-rated predictions [Schapire & Singer, 99] have…

计算与语言 · 计算机科学 2007-05-23 Xavier Carreras , Lluis Marquez

The Jiangmen Underground Neutrino Observatory (JUNO) is a neutrino experiment with a broad physical program. The main goals of JUNO are the determination of the neutrino mass ordering and high precision investigation of neutrino oscillation…

仪器与探测器 · 物理学 2021-09-08 Arsenii Gavrikov , Fedor Ratnikov

Users' search tasks have become increasingly complicated, requiring multiple queries and interactions with the results. Recent studies have demonstrated that modeling the historical user behaviors in a session can help understand the…

信息检索 · 计算机科学 2022-08-24 Haonan Chen , Zhicheng Dou , Yutao Zhu , Zhao Cao , Xiaohua Cheng , Ji-Rong Wen

Inferring socioeconomic attributes of social media users such as occupation and income is an important problem in computational social science. Automated inference of such characteristics has applications in personalised recommender…

计算与语言 · 计算机科学 2018-04-12 Nikolaos Aletras , Benjamin Paul Chamberlain

Enabling robots to learn novel visuomotor skills in a data-efficient manner remains an unsolved problem with myriad challenges. A popular paradigm for tackling this problem is through leveraging large unlabeled datasets that have many…

机器人学 · 计算机科学 2023-05-16 Maximilian Du , Suraj Nair , Dorsa Sadigh , Chelsea Finn

Action recognition is an important research topic in computer vision. It is the basic work for visual understanding and has been applied in many fields. Since human actions can vary in different environments, it is difficult to infer…

计算机视觉与模式识别 · 计算机科学 2019-10-23 Dong Cao , Lisha Xu , Dongdong Zhang

The purpose of this paper is to explore a multi-modal approach to enhancing live broadcast engagement by developing a short video recommendation system that incorporates Multi-modal Graph Convolutional Networks (MMGCN) with user…

信息检索 · 计算机科学 2025-09-30 Saeid Aghasoleymani Najafabadi , Elaheh Nabavi Nia

Large-scale industrial recommender systems are usually confronted with computational problems due to the enormous corpus size. To retrieve and recommend the most relevant items to users under response time limits, resorting to an efficient…

信息检索 · 计算机科学 2019-11-21 Han Zhu , Daqing Chang , Ziru Xu , Pengye Zhang , Xiang Li , Jie He , Han Li , Jian Xu , Kun Gai

Deep generative models are effective methods of modeling data. However, it is not easy for a single generative model to faithfully capture the distributions of complex data such as images. In this paper, we propose an approach for boosting…

机器学习 · 计算机科学 2019-05-14 Fan Bao , Hang Su , Jun Zhu

Meta-learning provides a popular and effective family of methods for data-efficient learning of new tasks. However, several important issues in meta-learning have proven hard to study thus far. For example, performance degrades in…

机器学习 · 计算机科学 2021-12-03 Rui Li , Ondrej Bohdal , Rajesh Mishra , Hyeji Kim , Da Li , Nicholas Lane , Timothy Hospedales