Results 31 to 40 of about 5,729 (273)

MapReduce Algorithm for Variants of Skyline Queries: Skyband and Dominating Queries

open access: yesAlgorithms, 2019
The skyline query and its variant queries are useful functions in the early stages of a knowledge-discovery processes. The skyline query and its variant queries select a set of important objects, which are better than other common objects in the dataset.
Md. Anisuzzaman Siddique   +3 more
doaj   +1 more source

CMLocate: A cross‐modal automatic visual geo‐localization framework for a natural environment without GNSS information

open access: yesIET Image Processing, 2023
In this paper, a new approach to visual geo‐localization for natural environments is proposed. The digital elevation model (DEM) data in virtual space is rendered and construct a panoramic skyline database is constructed.
Zhuoqun Liu   +4 more
doaj   +1 more source

I/O-Efficient Planar Range Skyline and Attrition Priority Queues [PDF]

open access: yes, 2013
In the planar range skyline reporting problem, we store a set P of n 2D points in a structure such that, given a query rectangle Q = [a_1, a_2] x [b_1, b_2], the maxima (a.k.a. skyline) of P \cap Q can be reported efficiently.
Kejlberg-Rasmussen, Casper   +4 more
core   +3 more sources

Continuous Nearest Neighbor Queries over Sliding Windows [PDF]

open access: yes, 2007
—This paper studies continuous monitoring of nearest neighbor (NN) queries over sliding window streams. According to this model, data points continuously stream in the system, and they are considered valid only while they belong to a sliding window that ...
MOURATIDIS, Kyriakos, Papadias, Dimitris
core   +3 more sources

Efficient Skyline Querying with Variable User Preferences on Nominal Attributes

open access: yes, 2007
Current skyline evaluation techniques assume a fixed ordering on the attributes. However, dynamic preferences on nominal attributes are more realistic in known applications.
Fu, Ada Wai-chee   +5 more
core   +5 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 that
Bagus Jati Santoso, Tosca Yoel Connery
doaj   +1 more source

Efficient Computation of Subspace Skyline over Categorical Domains

open access: yes, 2017
Platforms such as AirBnB, Zillow, Yelp, and related sites have transformed the way we search for accommodation, restaurants, etc. The underlying datasets in such applications have numerous attributes that are mostly Boolean or Categorical.
Asudeh, Abolfazl   +3 more
core   +1 more source

Preference elicitation in prioritized skyline queries [PDF]

open access: yesThe VLDB Journal, 2011
Preference queries incorporate the notion of binary preference relation into relational database querying. Instead of returning all the answers, such queries return only the best answers, according to a given preference relation. Preference queries are a fast growing area of database research.
Mindolin, Denis, Chomicki, Jan
openaire   +2 more sources

An Efficient Skyline Model for Processing Multiple Continuous Skyline Queries Over Uncertain Data Stream

open access: yesIEEE Access
Skyline queries based on pareto dominance have gained significant attention for their ability to effectively identify interesting objects from large multi-dimensional datasets.
Mudathir Ahmed Mohamud   +6 more
doaj   +1 more source

Skyline queries over incomplete multidimensional database [PDF]

open access: yes, 2011
In recent years, there has been much focus on skyline queries that incorporate and provide more flexible query operators that return data items which are dominating other data items in all attributes (dimensions).Several techniques for skyline have been ...
Alwan, Ali A.   +3 more
core  

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