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(3) Ambiguous evaluation measures, often tied to custom networks or downstream tasks, hinder consistent and fair comparison.<\/jats:p><jats:p>To overcome these limitations, we introduce TSGBench, the inaugural Time Series Generation Benchmark, designed for a unified and comprehensive assessment of TSG methods. It comprises three modules: (1) a curated collection of publicly available, real-world datasets tailored for TSG, together with a standardized preprocessing pipeline; (2) a comprehensive evaluation measures suite including vanilla measures, new distance-based assessments, and visualization tools; (3) a pioneering generalization test rooted in Domain Adaptation (DA), compatible with all methods. We have conducted comprehensive experiments using TSGBench across a spectrum of ten real-world datasets from diverse domains, utilizing ten advanced TSG methods and twelve evaluation measures. The results highlight the reliability and efficacy of TSGBench in evaluating TSG methods. Crucially, TSGBench delivers a statistical analysis of the performance rankings of these methods, illuminating their varying performance across different datasets and measures and offering nuanced insights into the effectiveness of each method.<\/jats:p>","DOI":"10.14778\/3632093.3632097","type":"journal-article","created":{"date-parts":[[2024,1,20]],"date-time":"2024-01-20T11:26:31Z","timestamp":1705749991000},"page":"305-318","update-policy":"https:\/\/doi.org\/10.1145\/crossmark-policy","source":"Crossref","is-referenced-by-count":24,"title":["TSGBench: Time Series Generation Benchmark"],"prefix":"10.14778","volume":"17","author":[{"given":"Yihao","family":"Ang","sequence":"first","affiliation":[{"name":"National University of Singapore, NUS Research Institute in Chongqing"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Qiang","family":"Huang","sequence":"additional","affiliation":[{"name":"National University of Singapore"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yifan","family":"Bao","sequence":"additional","affiliation":[{"name":"National University of Singapore"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anthony K. 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