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Trust models that rely on recommendation trusts are vulnerable to badmouthing and ballot-stuffing attacks. To cope with these attacks, existing trust models use different trust aggregation techniques to process the recommendation trusts and…

密码学与安全 · 计算机科学 2017-12-29 Heng Chuan Tan , Maode Ma , Houda Labiod , Peter Han Joo Chong , Jun Zhang

We extend the weighted ensemble (WE) path sampling method to perform rigorous statistical sampling for systems at steady state. The straightforward steady-state implementation of WE is directly practical for simple landscapes, but not when…

生物物理 · 物理学 2015-05-14 Divesh Bhatt , Bin W. Zhang , Daniel M. Zuckerman

It is clear that the EM spectrum is now rapidly reaching saturation, especially for frequencies below 10~GHz. Governments, who influence the regulatory authorities around the world, have resorted to auctioning the use of spectrum, in a…

网络与互联网体系结构 · 计算机科学 2017-02-28 Michael Inggs , Amit Mishra

With the increasing scale, complexity, and heterogeneity of the next generation networked systems, seamless control, management, and security of such systems becomes increasingly challenging. Many diverse applications have driven interest…

系统与控制 · 电气工程与系统科学 2021-04-19 Anousheh Gholami , Nariman Torkzaban , John S. Baras

This paper explores entity embedding effectiveness in ad-hoc entity retrieval, which introduces distributed representation of entities into entity retrieval. The knowledge graph contains lots of knowledge and models entity semantic…

信息检索 · 计算机科学 2019-08-29 Zhenghao Liu , Chenyan Xiong , Maosong Sun , Zhiyuan Liu

An issue for molecular dynamics simulations is that events of interest often involve timescales that are much longer than the simulation time step, which is set by the fastest timescales of the model. Because of this timescale separation,…

统计力学 · 物理学 2024-08-15 John Strahan , Chatipat Lorpaiboon , Jonathan Weare , Aaron R. Dinner

Collective decision-making requires aggregating multiple noisy information channels about an unknown state of the world. Classical epistemic justifications of majority rule rely on homogeneity assumptions often violated when individual…

综合经济学 · 经济学 2026-04-09 Enrico Manfredi

We propose a secure data aggregation (SDA) framework for mobile sensor networks whose topology changes dynamically with time. The SDA framework (designed to be resilient to both insider and outsider attacks) comprises of a pair-wise key…

网络与互联网体系结构 · 计算机科学 2014-11-25 Natarajan Meghanathan

Trust is a fundamental concept in many real-world applications such as e-commerce and peer-to-peer networks. In these applications, users can generate local opinions about the counterparts based on direct experiences, and these opinions can…

数据库 · 计算机科学 2012-11-12 Yuan Yao , Hanghang Tong , Xifeng Yan , Feng Xu , Jian Lu

This paper proposes a general interpretable predictive system with shared information. The system is able to perform predictions in a multi-task setting where distinct tasks are not bound to have the same input/output structure. Embeddings…

机器学习 · 计算机科学 2024-07-02 Maciej Żelaszczyk , Jacek Mańdziuk

Statistical and structural modeling represent two distinct approaches to data analysis. In this paper, we propose a set of novel methods for combining statistical and structural models for improved prediction and causal inference. Our first…

计量经济学 · 经济学 2020-06-11 Jiaming Mao , Jingzhi Xu

In the era of big data, the utilization of credit-scoring models to determine the credit risk of applicants accurately becomes a trend in the future. The conventional machine learning on credit scoring data sets tends to have poor…

机器学习 · 统计学 2021-02-10 Xiaofan Liua , Zuoquan Zhanga , Di Wanga

Representation learning is a fundamental building block for analyzing entities in a database. While the existing embedding learning methods are effective in various data mining problems, their applicability is often limited because these…

机器学习 · 计算机科学 2020-09-24 Chin-Chia Michael Yeh , Dhruv Gelda , Zhongfang Zhuang , Yan Zheng , Liang Gou , Wei Zhang

We present collaborative similarity embedding (CSE), a unified framework that exploits comprehensive collaborative relations available in a user-item bipartite graph for representation learning and recommendation. In the proposed framework,…

信息检索 · 计算机科学 2019-02-20 Chih-Ming Chen , Chuan-Ju Wang , Ming-Feng Tsai , Yi-Hsuan Yang

Word sense plausibility rating requires predicting the human-perceived plausibility of a given word sense on a 1-5 scale in the context of short narrative stories containing ambiguous homonyms. This paper systematically compares three…

计算与语言 · 计算机科学 2026-05-11 Tong Wu , Thanet Markchom , Huizhi Liang

Since the creation of the Web, recommender systems (RSs) have been an indispensable mechanism in information filtering. State-of-the-art RSs primarily depend on categorical features, which ecoded by embedding vectors, resulting in…

信息检索 · 计算机科学 2025-01-22 Hung Vinh Tran , Tong Chen , Quoc Viet Hung Nguyen , Zi Huang , Lizhen Cui , Hongzhi Yin

Embedded Systems (ES) development has been historically focused on functionality rather than security, and today it still applies in many sectors and applications. However, there is an increasing number of security threats over ES, and a…

密码学与安全 · 计算机科学 2021-12-13 Ángel Longueira-Romero , Rosa Iglesias , David Gonzalez , Iñaki Garitano

Crowdsourcing can be applied to the Internet-of-Things (IoT) systems to provide more scalable and efficient services to support various tasks. As the driving force of crowdsourcing is the interaction among participants, various incentive…

分布式、并行与集群计算 · 计算机科学 2019-07-30 Duin Baek , Jing Chen , Bong Jun Choi

Machine learning models trained on real-world data may inadvertently make biased predictions that negatively impact marginalized communities. Reweighting, which assigns a weight to each data point used during model training, can mitigate…

Weighted-sum energy efficiency (WSEE) is a key performance metric in heterogeneous networks, where the nodes may have different energy efficiency (EE) requirements. Nevertheless, WSEE maximization is a challenging problem due to its…

网络与互联网体系结构 · 计算机科学 2019-12-02 Christos N. Efrem , Athanasios D. Panagopoulos