Journal ArticleDOI
Efficient retrieval of the top-k most relevant spatial web objects
Gao Cong,Christian S. Jensen,Dingming Wu +2 more
- Vol. 2, Iss: 1, pp 337-348
TLDR
A new indexing framework for location-aware top-k text retrieval that encompasses algorithms that utilize the proposed indexes for computing the top- k query, thus taking into account both text relevancy and location proximity to prune the search space.Abstract:
The conventional Internet is acquiring a geo-spatial dimension. Web documents are being geo-tagged, and geo-referenced objects such as points of interest are being associated with descriptive text documents. The resulting fusion of geo-location and documents enables a new kind of top-k query that takes into account both location proximity and text relevancy. To our knowledge, only naive techniques exist that are capable of computing a general web information retrieval query while also taking location into account.This paper proposes a new indexing framework for location-aware top-k text retrieval. The framework leverages the inverted file for text retrieval and the R-tree for spatial proximity querying. Several indexing approaches are explored within the framework. The framework encompasses algorithms that utilize the proposed indexes for computing the top-k query, thus taking into account both text relevancy and location proximity to prune the search space. Results of empirical studies with an implementation of the framework demonstrate that the paper's proposal offers scalability and is capable of excellent performance.read more
Citations
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Ranked Spatial-keyword Search over Web-accessible Geotagged Data: State of the Art
TL;DR: Submitted by Sarafidou Maria (msaraf@ekt.gr) on 2016-05-18T11-27:58Z No.
SII: Improving query responsive time to find spatial objects with keywords
TL;DR: New technique SPATIAL INVERTED INDEX it is extension of traditional inverted index using multidimensional data provides efficient spatial query results with less responsive time.
Journal ArticleDOI
STQP: Spatio-Temporal Indexing and Query Processing
TL;DR: The generic location-aware rank query is formulated, which retrieves the objects satisfying a query predicate, ranks and returns the full total results predicated on spatial proximity, textual relevance's and measures extracted from attribute values.
Journal ArticleDOI
Spatial Query Authentication using Merkle QuadTree
J Linita Lyle,Ani Sunny +1 more
TL;DR: This paper presents a novel method for authentication of query results based on the ideas of Authentication Data Structures and Merkle Hash Tree and quadtree for verifying the authenticity of outsourced spatial databases.
References
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Proceedings ArticleDOI
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