Results 41 to 50 of about 245,870 (292)

A Skyline and ranking query odyssey: a journey from skyline and ranking queries up to f-skyline queries

open access: yesCoRR, 2022
Skyline and ranking queries are two of the most used tools to manage large data sets. The former is based on non-dominance, while the latter on a scoring function. Despite their effectiveness, they have some drawbacks like the result size or the need for a utility function that must be taken into account.
openaire   +3 more sources

Skyline Queries with Noisy Comparisons [PDF]

open access: yesProceedings of the 34th ACM SIGMOD-SIGACT-SIGAI Symposium on Principles of Database Systems, 2015
We study in this paper the computation of skyline queries-a popular tool for multicriteria data analysis-in the presence of noisy input. Motivated by crowdsourcing applications, we present the first algorithms for skyline evaluation in a computation model where the input data items can only be compared through noisy comparisons.
Groz, Benoit, Milo, Tova
openaire   +2 more sources

Cross trust domain federated k-dominant skyline query processing

open access: yes大数据, 2023
k-dominant skyline is a prevailing skyline query which has widespread applications in multi-criteria decision making and recommendation.As these applications continuously scale up, there is an increasing demand to support k-dominant skyline over a data ...
Yexuan SHI   +4 more
doaj  

Efficiently computing Pareto optimal G-skyline query in wireless sensor network

open access: yesInternational Journal of Distributed Sensor Networks, 2021
There are much data transmitted from sensors in wireless sensor network. How to mine vital information from these large amount of data is very important for decision-making.
Leigang Dong   +3 more
doaj   +1 more source

Efficient Skyline Computation on Uncertain Dimensions

open access: yesIEEE Access, 2021
The database community has observed in the past two decades, the growth of research interest in preference queries, each of which has its unique techniques, benefits, and drawbacks. One of them is skyline queries.
Nurul Husna Mohd Saad   +4 more
doaj   +1 more source

Geo-Social Skyline Queries [PDF]

open access: yes, 2014
By leveraging the capabilities of modern GPS-equipped mobile devices providing social-networking services, the interest in developing advanced services that combine location-based services with social networking services is growing drastically.
Zuefle, A   +4 more
openaire   +2 more sources

Skyline Path Queries With Aggregate Attributes

open access: yesIEEE Access, 2016
The skyline path query is a novel extension of skyline queries. A skyline path query retrieves a set of non-dominated paths from origin s to destination t.
Yi-Chung Chen, Chiang Lee
doaj   +1 more source

Parallel Computation of Skyline Queries [PDF]

open access: yes21st International Symposium on High Performance Computing Systems and Applications (HPCS'07), 2007
Skyline queries have received considerable attention in the database community. The goal is to retrieve all records in a database that have the property that no other record is better according to all of a given set of criteria. While this problem has been well studied in the computational geometry literature, the solution of this problem in the ...
Adan Cosgaya-Lozano   +2 more
openaire   +2 more sources

ANSWERING WHY-NOT QUESTIONS ON REVERSE SKYLINE QUERIES OVER INCOMPLETE DATA

open access: yesJUTI: Jurnal Ilmiah Teknologi Informasi, 2019
        Recently, the development of the query-based preferences has received considerable attention from researchers and data users. One of the most popular preference-based queries is the skyline query, which will give a subset of superior records ...
Bagus Jati Santoso, Tosca Yoel Connery
doaj   +1 more source

Skyline Query Processing [PDF]

open access: yes, 2006
This thesis deals with a special subset of multi-dimensional set of points, called the Skyline. These points are the maxima or minima of the complete set and are of special interest for the field of decision support. Coming from basic algorithms for computing the Skyline we will develop ideas and algorithms for "on-the-fly" or online computation of the
openaire   +2 more sources

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