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Early-warning models built from Learning Management System (LMS) logs aim to predict end-of-course outcomes early enough to enable timely learner support. However, reported "early" performance is often inflated by temporal leakage. This…

人工智能 · 计算机科学 2026-05-26 Ngoc Luyen Le , Marie-Hélène Abel , Bertrand Laforge

Current works on Information Centric Networking assume the spectrum of caching strategies under the Least Recently/ Frequently Used (LRFU) scheme as the de-facto standard, due to the ease of implementation and easier analysis of such…

社会与信息网络 · 计算机科学 2014-07-07 Amandianeze O Nwana , Salman Avestimehr , Tsuhan Chen

Machine learning (ML) applications to time series energy utilization forecasting problems are a challenging assignment due to a variety of factors. Chief among these is the non-homogeneity of the energy utilization datasets and the…

机器学习 · 计算机科学 2023-09-06 Jiacong Xu , Riley Kilfoyle , Zixiang Xiong , Ligang Lu

Language Models (LMs) become outdated as the world changes; they often fail to perform tasks requiring recent factual information which was absent or different during training, a phenomenon called temporal misalignment. This is especially a…

计算与语言 · 计算机科学 2023-04-13 Joel Jang , Seonghyeon Ye , Changho Lee , Sohee Yang , Joongbo Shin , Janghoon Han , Gyeonghun Kim , Minjoon Seo

Accurate prediction of resource consumption and runtime for cloud workflow jobs is critical for scheduling efficiency, yet remains challenging due to the semi-structured nature of job configurations -- comprising shell commands,…

机器学习 · 计算机科学 2026-05-18 Yuxuan Yin , Shengke Zhou , Yunjie Zhang , Ajay Mohindra , Boxun Xu , Peng Li

In the early observation period of a time series, there might be only a few historic observations available to learn a model. However, in cases where an existing prior set of datasets is available, Meta learning methods can be applicable.…

机器学习 · 计算机科学 2023-07-20 Shayan Jawed , Kiran Madhusudhanan , Vijaya Krishna Yalavarthi , Lars Schmidt-Thieme

Popularity prediction in information cascades plays a crucial role in social computing, with broad applications in viral marketing, misinformation control, and content recommendation. However, information propagation mechanisms, user…

社会与信息网络 · 计算机科学 2025-02-26 Yuhao Zheng , Chenghua Gong , Rui Sun , Juyuan Zhang , Liming Pan , Linyuan Lv

Large Language Models (LLMs) are increasingly deployed as active participants on public social media platforms, yet their behavior in these unconstrained social environments remains largely unstudied. Existing datasets, drawn primarily from…

社会与信息网络 · 计算机科学 2026-02-26 Matteo Migliarini , Berat Ercevik , Oluwagbemike Olowe , Saira Fatima , Sarah Zhao , Minh Anh Le , Vasu Sharma , Ashwinee Panda

Modern social platforms are characterized by the presence of rich user-behavior data associated with the publication, sharing and consumption of textual content. Users interact with content and with each other in a complex and dynamic…

社会与信息网络 · 计算机科学 2019-02-08 Adit Krishnan , Ashish Sharma , Hari Sundaram

The increasing use of Large Language Models (LLMs) as proxies for human participants in social science research presents a promising, yet methodologically risky, paradigm shift. While LLMs offer scalability and cost-efficiency, their…

计算与语言 · 计算机科学 2026-02-24 Simon Münker , Nils Schwager , Kai Kugler , Michael Heseltine , Achim Rettinger

Predicting crash events is crucial for understanding crash distributions and their contributing factors, thereby enabling the design of proactive traffic safety policy interventions. However, existing methods struggle to interpret the…

计算与语言 · 计算机科学 2025-05-22 Yang Zhao , Pu Wang , Yibo Zhao , Hongru Du , Hao Frank Yang

Modern data lakes have emerged as foundational platforms for large-scale machine learning, enabling flexible storage of heterogeneous data and structured analytics through table-oriented abstractions. Despite their growing importance,…

机器学习 · 计算机科学 2026-02-12 Feiyu Pan , Tianbin Zhang , Aoqian Zhang , Yu Sun , Zheng Wang , Lixing Chen , Li Pan , Jianhua Li

The present paper introduces a novel approach to studying social media habits through predictive modeling of sequential smartphone user behaviors. While much of the literature on media and technology habits has relied on self-report…

人机交互 · 计算机科学 2024-06-25 Heinrich Peters , Joseph B. Bayer , Sandra C. Matz , Yikun Chi , Sumer S. Vaid , Gabriella M. Harari

Although a variety of methods have been proposed for sequential recommendation, it is still far from being well solved partly due to two challenges. First, the existing methods often lack the simultaneous consideration of the global…

信息检索 · 计算机科学 2022-08-10 Lihua Chen , Ning Yang , Philip S Yu

Generative, temporal network models play an important role in analyzing the dependence structure and evolution patterns of complex networks. Due to the complicated nature of real network data, it is often naive to assume that the underlying…

统计方法学 · 统计学 2024-08-15 Daniel Cirkovic , Tiandong Wang , Xianyang Zhang

Intensive Longitudinal Data (ILD) is increasingly available to social and behavioral scientists. With this increased availability come new opportunities for modeling and predicting complex biological, behavioral, and physiological…

统计方法学 · 统计学 2025-01-08 Zachary F. Fisher , Younghoon Kim , Barbara Fredrickson , Vladas Pipiras

Platform businesses operate on a digital core and their decision making requires high-dimensional accurate forecast streams at different levels of cross-sectional (e.g., geographical regions) and temporal aggregation (e.g., minutes to…

计量经济学 · 经济学 2024-06-03 Jeroen Rombouts , Marie Ternes , Ines Wilms

We consider the problem of predicting link formation in Social Learning Networks (SLN), a type of social network that forms when people learn from one another through structured interactions. While link prediction has been studied for…

社会与信息网络 · 计算机科学 2023-01-05 Rajeev Sahay , Serena Nicoll , Minjun Zhang , Tsung-Yen Yang , Carlee Joe-Wong , Kerrie A. Douglas , Christopher G Brinton

In Long-term Time Series Forecasting (LTSF), the lookback window is a critical hyperparameter often set arbitrarily, undermining the validity of model evaluations. We argue that the lookback window must be tuned on a per-task basis to…

In the era of increasingly complex AI models for time series forecasting, progress is often measured by marginal improvements on benchmark leaderboards. However, this approach suffers from a fundamental flaw: standard evaluation metrics…

机器学习 · 计算机科学 2026-05-28 Wanjin Feng , Yuan Yuan , Jingtao Ding , Yong Li