Results 41 to 50 of about 391,863 (191)

Top-k Spatial Preference Queries in Directed Road Networks

open access: yesISPRS International Journal of Geo-Information, 2016
Top-k spatial preference queries rank objects based on the score of feature objects in their spatial neighborhood. Top-k preference queries are crucial for a wide range of location based services such as hotel browsing and apartment searching.
Muhammad Attique   +3 more
doaj   +1 more source

A Density-Based Approach to the Retrieval of Top-K Spatial Textual Clusters

open access: yes, 2016
Keyword-based web queries with local intent retrieve web content that is relevant to supplied keywords and that represent points of interest that are near the query location. Two broad categories of such queries exist.
Jensen, Christian S., Wu, Dingming
core   +1 more source

As-Soon-As-Possible Top-k Query Processing in P2P Systems [PDF]

open access: yes, 2013
International audienceTop-k query processing techniques provide two main advantages for unstructured peer-to-peer (P2P) systems. First they avoid overwhelming users with too many results.
A. Vlachou   +9 more
core   +3 more sources

Finding Top- $k$ Dominance on Incomplete Big Data Using MapReduce Framework

open access: yesIEEE Access, 2018
Incomplete data is one major kind of multi-dimensional dataset that has random-distributed missing nodes in its dimensions. It is very difficult to retrieve information from this type of dataset when it becomes large.
Payam Ezatpoor   +3 more
doaj   +1 more source

No-But-Semantic-Match: Computing Semantically Matched XML Keyword Search Results [PDF]

open access: yes, 2017
Users are rarely familiar with the content of a data source they are querying, and therefore cannot avoid using keywords that do not exist in the data source.
Islam, Md. Saiful   +3 more
core   +3 more sources

Evaluating top-k queries with inconsistency degrees [PDF]

open access: yesProceedings of the VLDB Endowment, 2020
We study the problem of augmenting relational tuples with inconsistency awareness and tackling top-k queries under a set of denial constraints (DCs). We define a notion of inconsistent tuples with respect to a set of DCs and define two measures of inconsistency degrees, which consider single and multiple violations of constraints.
Issa, Ousmane   +2 more
openaire   +2 more sources

Top-k sentiment analysis over spatio-temporal data [PDF]

open access: yesPeerJ Computer Science
In 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
doaj   +2 more sources

Dynamic Top-K Interesting Subgraph Query on Large-Scale Labeled Graphs

open access: yesInformation, 2019
A labeled graph is a special structure with node identification capability, which is often used in information networks, biological networks, and other fields. The subgraph query is widely used as an important means of graph data analysis. As the size of
Xiaohuan Shan   +4 more
doaj   +1 more source

Identifikasi protein signifikan pada interaksi protein-protein penyakit Alzheimer menggunakan algoritme top-k representative skyline query

open access: yesJurnal Teknologi dan Sistem Komputer, 2021
Penyakit Alzheimer merupakan penyakit neurodegeneratif yang paling umum terjadi. Kajian ini bertujuan melakukan analisis protein-protein interaction (PPI) yang dapat memberikan pemahaman lebih baik terhadap penyakit neurodegeneratif dan bisa digunakan ...
Mohammad Romano Diansyah   +2 more
doaj   +1 more source

On the Cost of Negation for Dynamic Pruning [PDF]

open access: yes, 2018
Negated query terms allow documents containing such terms to be filtered out of a search results list, supporting disambiguation. In this work, the effect of negation on the efficiency of disjunctive, top-k retrieval is examined.
Culpepper, J. Shane   +3 more
core   +1 more source

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