168333 20260204153543.0 doi 10.1080/13658816.2025.2582692 sideral 147795 ART-2025-147795 eng Hermoso, Ramon Universidad de Zaragoza (orcid)0000-0002-1517-2820 Recommending needles in a haystack: the SURGE approach 2025 Collective Spatial Keyword Querying (CoSKQ) was proposed over a decade ago as a model to retrieve sets of objects in spatial databases given a specific query. The rationale behind is that the retrieved solution sets must cover query keywords as well as minimise the geographic distances between the query and the solution elements. However, in most real scenarios, the exact matching of query keywords and object descriptions is rare or not possible. In this paper, we extend the notion of CoSKQ for recommendation problems and present SURGE (Spatial User Recommendations using Geographical metrics and sEmantics), an approach that puts forward a recommender system able to return solution sets even when query keywords and object descriptions do not match exactly. In order to do that, semantic techniques are used. A tourism domain has been used throughout the paper to explain the model. Furthermore, an exhaustive set of experiments has been carried out to validate the approach. Access copy available to the general public Unrestricted info:eu-repo/grantAgreement/ES/AEI/PID2020-113037RB-I00 info:eu-repo/grantAgreement/ES/DGA/T64-23R info:eu-repo/semantics/embargoedAccess by-nc https://creativecommons.org/licenses/by-nc/4.0/deed.es info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion Ilarri, Sergio Universidad de Zaragoza (orcid)0000-0002-7073-219X Trillo-Lado, Raquel Universidad de Zaragoza (orcid)0000-0001-6008-1138 Marzo, Cristina 5007 570 Universidad de Zaragoza Dpto. Informát.Ingenie.Sistms. Área Lenguajes y Sistemas Inf. (2025), 1-38 Int. j. geogr. inf. sci. INTERNATIONAL JOURNAL OF GEOGRAPHICAL INFORMATION SCIENCE 1365-8816 4561399 http://zaguan.unizar.es/record/168333/files/texto_completo.pdf Postprint info:eu-repo/date/embargoEnd/2026-11-17 1741487 http://zaguan.unizar.es/record/168333/files/texto_completo.jpg?subformat=icon icon Postprint info:eu-repo/date/embargoEnd/2026-11-17 oai:zaguan.unizar.es:168333 articulos driver 2026-02-04-13:13:57 ARTICLE