Zobrazeno 1 - 10
of 48
pro vyhledávání: '"Patroumpas, Kostas"'
Efficiently computing spatio-textual queries has become increasingly important in various applications that need to quickly retrieve geolocated entities associated with textual information, such as in location-based services and social networks. To a
Externí odkaz:
http://arxiv.org/abs/2312.09864
Autor:
Chatzigeorgakidis, Georgios, Skoutas, Dimitrios, Patroumpas, Kostas, Palpanas, Themis, Athanasiou, Spiros, Skiadopoulos, Spiros
Geolocated time series, i.e., time series associated with certain locations, abound in many modern applications. In this paper, we consider hybrid queries for retrieving geolocated time series based on filters that combine spatial distance and time s
Externí odkaz:
http://arxiv.org/abs/2104.09509
Autor:
Chatzigeorgakidis, Georgios, Skoutas, Dimitrios, Patroumpas, Kostas, Palpanas, Themis, Athanasiou, Spiros, Skiadopoulos, Spiros
Time series exploration and mining has many applications across several industrial and scientific domains. In this paper, we consider the problem of detecting locally similar pairs and groups, called bundles, over co-evolving time series. These are p
Externí odkaz:
http://arxiv.org/abs/2104.09417
Autor:
Chatzigeorgakidis, Georgios, Skoutas, Dimitrios, Patroumpas, Kostas, Palpanas, Themis, Athanasiou, Spiros, Skiadopoulos, Spiros
We address the problem of subsequence search in time series using Chebyshev distance, to which we refer as twin subsequence search. We first show how existing time series indices can be extended to perform twin subsequence search. Then, we introduce
Externí odkaz:
http://arxiv.org/abs/2104.06874
In previous work we introduced a trajectory detection module that can provide summarized representations of vessel trajectories by consuming AIS positional messages online. This methodology can provide reliable trajectory synopses with little deviati
Externí odkaz:
http://arxiv.org/abs/2005.05418
Autor:
Fikioris, Giannis1 (AUTHOR) gfikioris@cs.cornell.edu, Patroumpas, Kostas2 (AUTHOR), Artikis, Alexander3,4 (AUTHOR), Pitsikalis, Manolis5 (AUTHOR), Paliouras, Georgios4 (AUTHOR)
Publikováno v:
GeoInformatica. Jul2023, Vol. 27 Issue 3, p565-591. 27p.
Autor:
Patroumpas, Kostas, Alevizos, Elias, Artikis, Alexander, Vodas, Marios, Pelekis, Nikos, Theodoridis, Yannis
We present a system for online monitoring of maritime activity over streaming positions from numerous vessels sailing at sea. It employs an online tracking module for detecting important changes in the evolving trajectory of each vessel across time,
Externí odkaz:
http://arxiv.org/abs/1601.06041
Autor:
Chatzigeorgakidis, Georgios, Patroumpas, Kostas, Skoutas, Dimitrios, Athanasiou, Spiros, Skiadopoulos, Spiros
Publikováno v:
In Big Data Research March 2019 15:12-28
Akademický článek
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Autor:
Ionescu, A., Alexandridou, Alexandra, Ikonomou, Leonidas, Psarakis, K., Patroumpas, Kostas, Chatzigeorgakidis, Georgios, Skoutas, Dimitrios, Athanasiou, Spiros, Hai, R., Katsifodimos, A
Publikováno v:
Advances in Database Technology-Proceedings of the 26th International Conference on Extending Database Technology ( EDBT 2023 ), March 28-March 31 2023, 26
The increasing need for data trading has created a high demand for data marketplaces. These marketplaces require a set of value-added services, such as advanced search and discovery, that have been proposed in the database research community for year
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=narcis______::2027ef1b7efad4d0b2b40084efe41d8d
http://resolver.tudelft.nl/uuid:3a1e6ec5-acdf-4dae-89b2-70560369b3f4
http://resolver.tudelft.nl/uuid:3a1e6ec5-acdf-4dae-89b2-70560369b3f4