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We present a method for mapping Reddit communities that accounts for temporal shifts, using quantitative and qualitative analyses of clustering techniques to produce high-quality, stable, and meaningful maps for researchers, journalists and…

Social and Information Networks · Computer Science 2024-10-15 Virginia Partridge , Jasmine Mangat , Rebecca Curran , Ryan McGrady , Ethan Zuckerman

Large language models confidently produce outdated answers, and no existing method can detect them. We show this is not an engineering failure but a structural one: temporal drift, whether a stored fact has changed since training, is…

Artificial Intelligence · Computer Science 2026-05-12 Rania Elbadry , Ahmed Heakl , Fan Zhang , Dani Bouch , Yuxia Wang , Preslav Nakov , Zhuohan Xie

Many systems rely on reliable timestamps to determine the time of a particular action or event. This is especially true in digital investigations where investigators are attempting to determine when a suspect actually committed an action.…

Computers and Society · Computer Science 2018-03-23 Joshua I. James , Yunsik Jang

The period from 2019 to the present marks one of the most significant paradigm shifts in information retrieval (IR) and natural language processing (NLP), culminating in the emergence of powerful large language models (LLMs) from 2022…

Information Retrieval · Computer Science 2026-03-17 Zhichao Xu , Fengran Mo , Zhiqi Huang , Crystina Zhang , Puxuan Yu , Bei Wang , Jimmy Lin , Vivek Srikumar

Consistency in data storage systems requires any read operation to return the most recent written version of the content. In replicated storage systems, consistency comes at the price of delay due to large-scale write and read operations.…

Distributed, Parallel, and Cluster Computing · Computer Science 2018-04-04 Jing Zhong , Roy D. Yates , Emina Soljanin

For scientific software, especially those used for large-scale simulations, achieving good performance and efficiently using the available hardware resources is essential. It is important to regularly perform benchmarks to ensure the…

Modern machine learning systems need to be able to cope with constantly arriving and changing data. Two main areas of research dealing with such scenarios are continual learning and data stream mining. Continual learning focuses on…

Machine Learning · Computer Science 2021-04-27 Łukasz Korycki , Bartosz Krawczyk

Remote sensing segmentation in real deployment is inherently continual: new semantic categories emerge, and acquisition conditions shift across seasons, cities, and sensors. Despite recent progress, many incremental approaches still treat…

Computer Vision and Pattern Recognition · Computer Science 2026-05-19 Jiekai Wu , Rong Fu , Chuangqi Li , Zijian Zhang , Guangxin Wu , Hao Zhang , Shiyin Lin , Jianyuan Ni , Yang Li , Dongxu Zhang , Amir H. Gandomi , Simon Fong , Pengbin Feng

Information Retrieval (IR) systems are exposed to constant changes in most components. Documents are created, updated, or deleted, the information needs are changing, and even relevance might not be static. While it is generally expected…

Information Retrieval · Computer Science 2024-09-10 Jüri Keller , Timo Breuer , Philipp Schaer

Large language models (LLMs) rely heavily on web-scale datasets like Common Crawl, which provides over 80\% of training data for some modern models. However, the indiscriminate nature of web crawling raises challenges in data quality,…

Computation and Language · Computer Science 2025-09-01 Inés Altemir Marinas , Anastasiia Kucherenko , Andrei Kucharavy

Topic models have proven to be a useful tool for discovering latent structures in document collections. However, most document collections often come as temporal streams and thus several aspects of the latent structure such as the number of…

Information Retrieval · Computer Science 2012-03-19 Amr Ahmed , Eric P. Xing

We introduce and define the novel problem of multi-distribution information retrieval (IR) where given a query, systems need to retrieve passages from within multiple collections, each drawn from a different distribution. Some of these…

Information Retrieval · Computer Science 2023-06-23 Soumya Chatterjee , Omar Khattab , Simran Arora

This paper introduces a scheme for data stream processing which is robust to batch duration. Streaming frameworks process streams in batches retrieved at fixed time intervals. In a common setting a pattern recognition algorithm is applied…

Distributed, Parallel, and Cluster Computing · Computer Science 2017-02-20 David Tolpin

With rapidly evolving media narratives, it has become increasingly critical to not just extract narratives from a given corpus but rather investigate, how they develop over time. While popular narrative extraction methods such as Large…

Computation and Language · Computer Science 2025-06-26 Kai-Robin Lange , Tobias Schmidt , Matthias Reccius , Henrik Müller , Michael Roos , Carsten Jentsch

Most machine learning models for predicting clinical outcomes are developed using historical data. Yet, even if these models are deployed in the near future, dataset shift over time may result in less than ideal performance. To capture this…

Machine Learning · Computer Science 2023-06-21 Christina X Ji , Ahmed M Alaa , David Sontag

The race for the most efficient, accurate, and universal algorithm in scientific computing drives innovation. At the same time, this healthy competition is only beneficial if the research output is actually comparable to prior results.…

Mathematical Software · Computer Science 2023-09-15 Peter Benner , Kathryn Lund , Jens Saak

This paper proposes a new evaluation protocol for cross-media retrieval which better fits the real-word applications. Both image-text and text-image retrieval modes are considered. Traditionally, class labels in the training and testing…

Computer Vision and Pattern Recognition · Computer Science 2017-03-13 Ruoyu Liu , Yao Zhao , Liang Zheng , Shikui Wei , Yi Yang

The organization of latent knowledge within large-scale models poses unique challenges when addressing overlapping representations and optimizing contextual accuracy. Conceptual redundancies embedded across layers often result in…

Computation and Language · Computer Science 2025-03-26 Joseph Sakau , Evander Kozlowski , Roderick Thistledown , Basil Steinberger

Retrieval-Augmented Generation (RAG) systems require corpora that are both structurally clean and semantically coherent. BRIGHT is a recent and influential benchmark designed to evaluate complex multi-hop retrieval across diverse,…

Artificial Intelligence · Computer Science 2025-06-10 Liyang Chen , Yujun Cai , Jieqiong Dong , Yiwei Wang

A growing number of Machine Learning Frameworks recently made Deep Learning accessible to a wider audience of engineers, scientists, and practitioners, by allowing straightforward use of complex neural network architectures and algorithms.…

Machine Learning · Computer Science 2022-12-08 Ivan Svogor , Christian Eichenberger , Markus Spanring , Moritz Neun , Michael Kopp
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