# LongEval at CLEF 2025: Longitudinal Evaluation of IR Model Performance

arXiv: https://arxiv.org/abs/2503.08541 · HTML: https://mlsanity.com/paper/2503.08541/

## Key facts

- Cited by 2 papers in the map (data through 14 Oct 2026).
- First posted on arXiv 11 Mar 2025.

## Built on by (most cited first, 2 of 2)

- [Second SIGIR Workshop on Simulations for Information Access (Sim4IA 2025)](https://mlsanity.com/paper/2505.11687/) (2025)
- [Submitted and Diagnostic Analysis of Full-Text Temporal Retrieval for LongEval-Sci](https://mlsanity.com/paper/2607.04088/) (2026)

## Abstract (arXiv)

This paper presents the third edition of the LongEval Lab, part of the CLEF 2025 conference, which continues to explore the challenges of temporal persistence in Information Retrieval (IR). The lab features two tasks designed to provide researchers with test data that reflect the evolving nature of user queries and document relevance over time. By evaluating how model performance degrades as test data diverge temporally from training data, LongEval seeks to advance the understanding of temporal dynamics in IR systems. The 2025 edition aims to engage the IR and NLP communities in addressing the development of adaptive models that can maintain retrieval quality over time in the domains of web search and scientific retrieval.