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Fidel-TS benchmark launched to improve time series forecasting evaluation

Researchers have introduced Fidel-TS, a new benchmark designed to improve the evaluation of time series forecasting models. This benchmark addresses issues found in previous datasets, such as data contamination and temporal leakage, by adhering to principles of data integrity and leak-free design. Experiments using Fidel-TS highlight the limitations of existing benchmarks and reveal potential discrepancies in how current unimodal, multimodal, and LLM-based forecasting models are assessed. AI

Summary written by gemini-2.5-flash-lite from 1 source. How we write summaries →

IMPACT Provides a more rigorous evaluation framework for time series forecasting models, potentially leading to more reliable AI systems in this domain.

RANK_REASON Academic paper introducing a new benchmark for time series forecasting. [lever_c_demoted from research: ic=1 ai=1.0]

Read on arXiv stat.ML →

COVERAGE [1]

  1. arXiv stat.ML TIER_1 · Zhijian Xu, Wanxu Cai, Xilin Dai, Zhaorong Deng, Qiang Xu ·

    Fidel-TS: A High-Fidelity Multimodal Benchmark for Time Series Forecasting

    arXiv:2509.24789v4 Announce Type: replace-cross Abstract: The evaluation of time series forecasting models is hindered by a lack of high-quality benchmarks, leading to overestimated assessments of progress. Existing datasets suffer from issues ranging from small-scale, low-freque…