dc.contributor.author | Theodoropoulos, George S. | |
dc.contributor.author | Nørvåg, Kjetil | |
dc.contributor.author | Doulkeridis, Christos | |
dc.date.accessioned | 2024-03-06T09:22:16Z | |
dc.date.available | 2024-03-06T09:22:16Z | |
dc.date.created | 2024-01-12T13:23:45Z | |
dc.date.issued | 2023 | |
dc.identifier.citation | Advances in Database Technology - Volume 26 Proceedings 26th International Conference on Extending Database Technology ( EDBT 2023 ) | en_US |
dc.identifier.isbn | 978-3-89318-094-3 | |
dc.identifier.uri | https://hdl.handle.net/11250/3121219 | |
dc.description.abstract | In this paper, we address the problem of semantic similarity
search over spatio-textual data. In contrast with most existing
works on spatial-keyword search that rely on exact matching
of query keywords to textual descriptions, we focus on seman-
tic textual similarity using word embeddings, which have been
shown to capture semantic similarity exceptionally well in prac-
tice. To support efficient 𝑘-nearest neighbor (𝑘-NN) search over
a weighted combination of spatial and semantic dimensions, we
propose a novel indexing approach (called CSSI) that ensures
correctness of results, alongside its approximate variant (called
CSSIA) that introduces a small amount of error in exchange for im-
proved performance. Both variants are based on a hybrid cluster-
ing scheme that jointly indexes the spatial and textual/semantic
information, achieving high pruning percentages and improved
performance and scalability | en_US |
dc.language.iso | eng | en_US |
dc.publisher | OpenProceedings | en_US |
dc.relation.ispartof | Advances in Database Technology - Volume 26 Proceedings 26th International Conference on Extending Database Technology ( EDBT 2023 ) Ioannina, Greece, March 28 - March 31 | |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/deed.no | * |
dc.title | Efficient Semantic Similarity Search over Spatio-textual Data | en_US |
dc.title.alternative | Efficient Semantic Similarity Search over Spatio-textual Data | en_US |
dc.type | Chapter | en_US |
dc.description.version | publishedVersion | en_US |
dc.source.pagenumber | 268-280 | en_US |
dc.source.volume | Number 2 (November 22, 2023) | en_US |
dc.identifier.cristin | 2225439 | |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |