Results 31 to 40 of about 1,381,457 (160)

Top-k Spatial Preference Queries [PDF]

open access: yes2007 IEEE 23rd International Conference on Data Engineering, 2007
A spatial preference query ranks objects based on the qualities of features in their spatial neighborhood. For example, consider a real estate agency office that holds a database with available flats for lease. A customer may want to rank the flats with respect to the appropriateness of their location, defined after aggregating the qualities of other ...
Mamoulis, N, Vaitis, M, Dai, X, Yiu, ML
openaire   +2 more sources

Missing values imputation using Fuzzy K-Top Matching Value

open access: yesJournal of King Saud University: Computer and Information Sciences, 2023
Missing data occurs when variables or observations are missing. Researchers exclude or impute influenced variables and data. This study proposes Fuzzy K-Top Matching Value (FKTM) for missing value imputation.
Azza Ali   +3 more
doaj   +1 more source

Top-k Average Utility Co-location Pattern Mining of Fuzzy Features [PDF]

open access: yesJisuanji kexue yu tansuo, 2022
The spatial co-location pattern refers to a subset of non-empty spatial features whose instances are frequently located together in a spatial neighborhood.
LI Jinhong, WANG Lizhen, ZHOU Lihua
doaj   +1 more source

Efficient and Secure Top-k Queries With Top Order-Preserving Encryption

open access: yesIEEE Access, 2018
Top-k queries can retrieve the most relevant tuples from massive datasets and have wide implementations, such as PageRank, healthcare analytics, and decision making.
Hanyu Quan   +3 more
doaj   +1 more source

Efficient Top-k Graph Similarity Search With GED Constraints

open access: yesIEEE Access, 2022
It is essential to identify similarity between graphs for various tasks in data mining, machine learning and pattern recognition. Graph edit distance (GED) is the most popular graph similarity measure thanks to its flexibility and versatility.
Jongik Kim
doaj   +1 more source

Distributed top-k aggregation queries at large [PDF]

open access: yes, 2009
Top-k query processing is a fundamental building block for efficient ranking in a large number of applications. Efficiency is a central issue, especially for distributed settings, when the data is spread across different nodes in a network.
A. Marian   +16 more
core   +2 more sources

Real-time recommendation algorithms for crowdsourcing systems

open access: yesApplied Computing and Informatics, 2017
Crowdsourcing has become a promising paradigm for solving tasks that are beyond the capabilities of machines alone via outsourcing tasks to online crowds of people.
Mejdl Safran, Dunren Che
doaj   +1 more source

Enumerating Top-k Quasi-Cliques [PDF]

open access: yes, 2018
Quasi-cliques are dense incomplete subgraphs of a graph that generalize the notion of cliques. Enumerating quasi-cliques from a graph is a robust way to detect densely connected structures with applications to bio-informatics and social network analysis.
Das, Apurba   +3 more
core   +3 more sources

Loopless Top-K Planning

open access: yesProceedings of the International Conference on Automated Planning and Scheduling, 2022
In top-k planning, the objective is to determine a set of k cheapest plans that provide several good alternatives to choose from. Such a solution set often contains plans that visit at least one state more than once. Depending on the application, plans with such loops are of little importance because they are dominated by a loopless representative and ...
Tschammer, Julian von   +2 more
openaire   +2 more sources

Equality of Voice: Towards Fair Representation in Crowdsourced Top-K Recommendations [PDF]

open access: yes, 2018
To help their users to discover important items at a particular time, major websites like Twitter, Yelp, TripAdvisor or NYTimes provide Top-K recommendations (e.g., 10 Trending Topics, Top 5 Hotels in Paris or 10 Most Viewed News Stories), which rely on ...
Chakraborty, Abhijnan   +4 more
core   +5 more sources

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