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Our methods are tested on a sequence of rasters representing the evolution of temperature over time for the same region. Each raster corresponds to a different data acquisition time period, and each raster geo-referenced cell is associated with a temperature value. This article proposes optimized methods to calculate the average temperature for the region for all the possible raster subsequences of a determined length, i.e., to calculate overlapping aggregated data summaries. In these aggregations, the same subsets of values are aggregated several times. For example, this type of aggregation can be useful in different environmental data analyses, e.g., to pre-calculate all the average temperatures in a database. The present article highlights a significant increase in performance and shows that the use of GPGPU parallel processing enabled us to run the aggregations up to more than 50 times faster than the sequential method including data transfer cost and more than 200 times faster without data transfer cost.<\/jats:p>","DOI":"10.4018\/ijismd.2019010102","type":"journal-article","created":{"date-parts":[[2019,3,27]],"date-time":"2019-03-27T14:25:36Z","timestamp":1553696736000},"page":"20-41","source":"Crossref","is-referenced-by-count":3,"title":["Modeling and Computing Overlapping Aggregation of Large Data Sequences in Geographic Information Systems"],"prefix":"10.4018","volume":"10","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5652-1863","authenticated-orcid":true,"given":"Driss","family":"En-Nejjary","sequence":"first","affiliation":[{"name":"Universit\u00e9 Clermont Auvergne, LIMOS, Irstea, UR TSCF, Clermont-Ferrand, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Francois","family":"Pinet","sequence":"additional","affiliation":[{"name":"Universit\u00e9 Clermont Auvergne, Irstea, UR TSCF, Centre de Clermont-Ferrand, France"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Myoung-Ah","family":"Kang","sequence":"additional","affiliation":[{"name":"Universit\u00e9 Clermont-Auvergne, LIMOS, Clermont-Ferrand, France"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"2432","reference":[{"key":"IJISMD.2019010102-0","doi-asserted-by":"publisher","DOI":"10.1016\/j.spasta.2017.08.004"},{"key":"IJISMD.2019010102-1","doi-asserted-by":"publisher","DOI":"10.1145\/1869790.1869817"},{"key":"IJISMD.2019010102-2","unstructured":"Blelloch, G. 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