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Reverse Query Processing [PDF]
2007 IEEE 23rd International Conference on Data Engineering, 2007 Traditionally, query processing gets a query and a database instance as input and re turns the result of the query for that particular database instance. Reverse query processing (RQP) gets a query and a result as input and returns a possible database instance that could have produced that result for that query.
Carsten Binnig +2 more
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Re-examining the potential effectiveness of interactive query expansion [PDF]
, 2003 Much attention has been paid to the relative effectiveness of interactive query expansion versus automatic query expansion. Although interactive query expansion has the potential to be an effective means of improving a search, in this paper we show that,
Ruthven, I.
core +5 more sources
HI-Sky: Hash Index-Based Skyline Query Processing
Applied Sciences, 2020 The skyline query has recently attracted a considerable amount of research interest in several fields. The query conducts computations using the domination test, where “domination” means that a data point does not have a worse value than ...
Jong-Hyeok Choi +2 more
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Process Instance Query Language and the Process Querying Framework
, 2021 The use of Business Process Management Systems (BPMSs) allows companies to manage the data that flows through process models (business instances) and to monitor all the information and actions concerning a process execution. In general, the retrieval of this information is used not only to measure whether the process works as expected but also to ...
Pérez Álvarez, Jose Miguel +4 more
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Query Expansion of Zero-Hit Subject Searches: Using a Thesaurus in Conjunction with NLP Techniques [PDF]
, 2012 The focus of our study is zero-hit queries in keyword subject searches and the effort of increasing recall in these cases by reformulating and, then, expanding the initial queries using an external source of knowledge, namely a thesaurus.
Peponakis, Manolis +5 more
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Query Refinement into Information Retrieval Systems: An Overview
Journal of Information and Organizational Sciences, 2023 Query, expressing the user need and requirement, has an important role, in an information retrieval system, for reaching a high accuracy search. In this paper, we present an overview of the different refinement operations that the query may undergo, in ...
Mawloud Mosbah
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A technique for parallel query optimization using MapReduce framework and a semantic-based clustering method [PDF]
PeerJ Computer Science, 2021 Query optimization is the process of identifying the best Query Execution Plan (QEP). The query optimizer produces a close to optimal QEP for the given queries based on the minimum resource usage.
Elham Azhir +4 more
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Query processing of spatial objects: Complexity versus Redundancy [PDF]
, 1993 The management of complex spatial objects in applications, such as geography and cartography, imposes stringent new requirements on spatial database systems, in particular on efficient query processing. As shown before, the performance of spatial query
Kriegel, Hans-Peter +3 more
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Query processing of geometric objects with free form boundarie sin spatial databases [PDF]
, 1993 The increasing demand for the use of database systems as an integrating factor in CAD/CAM applications has necessitated the development of database systems with appropriate modelling and retrieval capabilities.
Kriegel, Hans-Peter +3 more
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k-step Reachability Query Processing on Label-constrained Graph [PDF]
Jisuanji kexue, 2022 The k-step reachability query processing on label-constrained graph is used to answer whether there is a path with a length not greater than k between two points and the labels on this path are in the specified label set.The k-step reachability query ...
DU Ming, XING Rui-ping, ZHOU Jun-feng, TAN Yu-ting
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