arXiv Machine Learning September 14, 2026 By Debayan Bhattacharya, Ikram Ul Haq, Carlos Pichardo Vicencio, Sebastien Lafond

A Large-Scale AIS Dataset from Finnish Water

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This paper introduces a large AIS dataset from Finnish waters, covering the Baltic Sea and Finnish lakes, with 229 million data points. It curates and categorises existing AIS data, adds new recordings, and provides ship type listings and visualisations of traffic patterns. The resource is positioned to support research into maritime activities and vessel behaviour in this dynamic region.

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