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Large Language Models (LLMs) are pretrained on textual data up to a specific temporal cutoff. This creates a strict knowledge boundary beyond which models cannot provide accurate information without querying external sources. More subtly,…

Computation and Language · Computer Science 2025-11-18 Piotr Pęzik , Konrad Kaczyński , Maria Szymańska , Filip Żarnecki , Zuzanna Deckert , Jakub Kwiatkowski , Wojciech Janowski

Database research can help machine learning performance in many ways. One way is to design better data structures. This paper combines the use of incremental computation and sequential and probabilistic filtering to enable "forgetful"…

Machine Learning · Computer Science 2022-12-16 Zhehu Yuan , Yinqi Sun , Dennis Shasha

In this paper we describe a novel framework for the discovery of the topical content of a data corpus, and the tracking of its complex structural changes across the temporal dimension. In contrast to previous work our model does not impose…

Information Retrieval · Computer Science 2015-02-10 Adham Beykikhoshk , Ognjen Arandjelovic , Dinh Phung , Svetha Venkatesh

Machine learning and deep learning-based decision making has become part of today's software. The goal of this work is to ensure that machine learning and deep learning-based systems are as trusted as traditional software. Traditional…

Involving users in early phases of software development has become a common strategy as it enables developers to consider user needs from the beginning. Once a system is in production, new opportunities to observe, evaluate and learn from…

Information Retrieval · Computer Science 2022-10-25 Timo Breuer , Narges Tavakolpoursaleh , Johann Schaible , Daniel Hienert , Philipp Schaer , Leyla Jael Castro

The query-based moment retrieval is a problem of localising a specific clip from an untrimmed video according a query sentence. This is a challenging task that requires interpretation of both the natural language query and the video…

Computer Vision and Pattern Recognition · Computer Science 2020-10-08 Mayu Otani , Yuta Nakashima , Esa Rahtu , Janne Heikkilä

The longitudinal evaluation of retrieval systems aims to capture how information needs and documents evolve over time. However, classical Cranfield-style retrieval evaluations only consist of a static set of queries and documents and…

Information Retrieval · Computer Science 2025-09-23 Jüri Keller , Maik Fröbe , Gijs Hendriksen , Daria Alexander , Martin Potthast , Philipp Schaer

The rapid release of both language models and benchmarks makes it increasingly costly to evaluate every model on every dataset. In practice, models are often evaluated on different samples, making scores difficult to compare across studies.…

Computation and Language · Computer Science 2026-04-16 Eliya Habba , Itay Itzhak , Asaf Yehudai , Yotam Perlitz , Elron Bandel , Michal Shmueli-Scheuer , Leshem Choshen , Gabriel Stanovsky

In Continual Learning (CL) contexts, concept drift typically refers to the analysis of changes in data distribution. A drift in the input data can have negative consequences on a learning predictor and the system's stability. The majority…

Machine Learning · Computer Science 2024-10-23 Sebastian Basterrech

Benchmark datasets for network intrusion detection commonly rely on synthetically generated traffic, which fails to reflect the statistical variability and temporal drift encountered in operational environments. This paper introduces…

Machine Learning · Computer Science 2025-06-23 Joshua Schraven , Alexander Windmann , Oliver Niggemann

Cross-modal (e.g. image-text, video-text) retrieval is an important task in information retrieval and multimodal vision-language understanding field. Temporal understanding makes video-text retrieval more challenging than image-text…

Computer Vision and Pattern Recognition · Computer Science 2025-09-30 Yang Du , Yuqi Liu , Qin Jin

Post-cutoff performance decay of LLMs has been widely interpreted as a temporal signal for benchmark contamination, where public information released before the training cutoff may have been included into training corpora and inflated model…

We argue that the current practice of evaluating AI/ML time-series forecasting models, predominantly on benchmarks characterized by strong, persistent periodicities and seasonalities, obscures real progress by overlooking the performance of…

Machine Learning · Computer Science 2026-03-17 Raeid Saqur , Christoph Bergmeir , Blanka Horvath , Daniel Schmidt , Frank Rudzicz , Terry Lyons

Word meaning change can be inferred from drifts of time-varying word embeddings. However, temporal data may be too sparse to build robust word embeddings and to discriminate significant drifts from noise. In this paper, we compare three…

Computation and Language · Computer Science 2019-09-05 Syrielle Montariol , Alexandre Allauzen

In document classification for, e.g., legal and biomedical text, we often deal with hundreds of classes, including very infrequent ones, as well as temporal concept drift caused by the influence of real world events, e.g., policy changes,…

Computation and Language · Computer Science 2022-03-16 Ilias Chalkidis , Anders Søgaard

Information retrieval systems are usually measured by labeling the relevance of results corresponding to a sample of user queries. In practical search engines, such measurement needs to be performed continuously, such as daily or weekly.…

Information Retrieval · Computer Science 2022-03-04 Nikita Astrakhantsev , Deepak Chittajallu , Nabeel Kaushal , Vladislav Mokeev

Popularized by the Differentiable Search Index, the emerging paradigm of generative retrieval re-frames the classic information retrieval problem into a sequence-to-sequence modeling task, forgoing external indices and encoding an entire…

Information Retrieval · Computer Science 2023-05-22 Ronak Pradeep , Kai Hui , Jai Gupta , Adam D. Lelkes , Honglei Zhuang , Jimmy Lin , Donald Metzler , Vinh Q. Tran

Over the past decade, the proliferation of public and enterprise data lakes has fueled intensive research into data discovery, aiming to identify the most relevant data from vast and complex corpora to support diverse user tasks.…

Databases · Computer Science 2025-10-16 Mahdi Esmailoghli , Matthias Weidlich

Recent conversational memory systems invest heavily in LLM-based structuring at ingestion time and learned retrieval policies at query time. We show that neither is necessary. SmartSearch retrieves from raw, unstructured conversation…

Machine Learning · Computer Science 2026-03-17 Jesper Derehag , Carlos Calva , Timmy Ghiurau

Establishing a docker-based replicability infrastructure offers the community a great opportunity: measuring the run time of information retrieval systems. The time required to present query results to a user is paramount to the users…

Information Retrieval · Computer Science 2019-07-11 Sebastian Hofstätter , Allan Hanbury
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