Results 51 to 60 of about 2,551,481 (193)
GSA: node failures tolerent spatial window query processing algorithm in wireless sensor networks
Tongxin xuebao, 2008 A node failures tolerent spatial window query processing algorithm called GSA was proposed. The grid size parameter was studied and a grid-based data collection schedule scheme to avoid the message collisions in the process of data collection was ...
LIU Liang +3 more
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An Efficient Top-
IEEE Access, 2019 Existing spatial keyword query processing models mainly consider the spatial proximity and text relevancy between spatial objects and spatial keyword query, which usually makes the top-k answer objects are similar to each other.
Xiaoyan Zhang +4 more
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Top-k sentiment analysis over spatio-temporal data [PDF]
PeerJ Computer ScienceIn recent years, social media has become much more popular to use to express people’s feelings in different forms. Social media such as X (i.e., Twitter) provides a huge amount of data to be analyzed by using sentiment analysis tools to examine the ...
Abdulaziz Almaslukh +5 more
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The combination of spatial access methods and computational geometry in geographic database systems [PDF]
, 1991 Geographic database systems, known as geographic information systems (GISs) particularly among non-computer scientists, are one of the most important applications of the very active research area named spatial database systems. Consequently following the
Kriegel, Hans-Peter +5 more
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ANALISA KECEPATAN SPATIAL QUERY DATA SATELIT PADA BEBERAPA STORAGE ENGINE MYSQL DATABASE
Matrix: Jurnal Manajemen Teknologi dan Informatika, 2016 Penerapan spatial database untuk data satellite remote sensing, membutuhkan struktur data yang memungkinkan proses spatial query dilakukan dengan kecepatan tinggi, oleh karena volume data satelit biasanya sangat besar.
I Ketut Swardika
doaj
Spatial queries with two kNN predicates [PDF]
Proceedings of the VLDB Endowment, 2012 The widespread use of location-aware devices has led to countless location-based services in which a user query can be arbitrarily complex, i.e., one that embeds multiple spatial selection and join predicates. Amongst these predicates, the k -Nearest-Neighbor ( k NN) predicate stands as one ...
Aly, Ahmed +2 more
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Querying spatial data by dominators in neighborhood [PDF]
Information Systems, 2018 Spatial objects in reality are often associated with geographic locations (e.g., longitude and latitude) as well as multiple quality attributes. Quality attributes make it possible to compare spatial objects according to the dominance concept. Specifically, an object pi is said to dominate another object pj if pi is no worse than pj on all quality ...
Hua Lu 0001, Man Lung Yiu, Xike Xie
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Index ordering by query-independent measures [PDF]
, 2012 Conventional approaches to information retrieval search through all applicable entries in an inverted file for a particular collection in order to find those documents with the highest scores. For particularly large collections this may be extremely time
Smeaton, Alan F., Ferguson, Paul
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Effective Data Management and Spatial Analytics
, 2021 This webinar introduced the implementations of effective data management and spatial analytics by academic and industry leaders of the field, and discuss the directions for further enhancement through integration with a cloud-based platform for research ...
Spatial Data Lab
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Top-k Spatial Preference Queries [PDF]
2007 IEEE 23rd International Conference on Data Engineering, 2007 A spatial preference query ranks objects based on the qualities of features in their spatial neighborhood. For example, consider a real estate agency office that holds a database with available flats for lease. A customer may want to rank the flats with respect to the appropriateness of their location, defined after aggregating the qualities of other ...
Man Lung Yiu +3 more
openaire +3 more sources