Results 11 to 20 of about 391,863 (191)
A novel top‐k key node query problem in subgraph matching and its greedy strategy
Engineering Reports, 2022 Top‐k node selection in graph data is an essential problem in computer science and applications. In view of an important issue in the field of graph data, subgraph matching issue, we define the problem and propose its method for the top‐k key node query ...
Zhengyuan Xue
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Ranking Large Temporal Data [PDF]
, 2012 Ranking temporal data has not been studied until recently, even though ranking is an important operator (being promoted as a firstclass citizen) in database systems.
Jestes, Jeffrey +3 more
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Diversifying Top-K Results [PDF]
, 2012 Top-k query processing finds a list of k results that have largest scores w.r.t the user given query, with the assumption that all the k results are independent to each other.
Chang, Lijun, Qin, Lu, Yu, Jeffrey Xu
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Efficient Authentication of Multi-Dimensional Top-
IEEE Access, 2019 With the increasing popularity of cloud computing, query outsourcing services are becoming widely available for many business applications. However, the third-party cloud server which provides query service is untrusted, and thus the correctness of query
Xiaoyu Zhu +4 more
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Top-k Queries over Digital Traces [PDF]
Proceedings of the 2019 International Conference on Management of Data, 2019 Recent advances in social and mobile technology have enabled an abundance of digital traces (in the form of mobile check-ins, association of mobile devices to specific WiFi hotspots, etc.) revealing the physical presence history of diverse sets of entities (e.g., humans, devices, and vehicles).
Li, Yifan, Yu, Xiaohui, Koudas, Nick
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Top-k Window Aggregation Query Method for Uncertain Time Series [PDF]
Jisuanji gongchengThe analysis and mining of uncertain time series data has attracted attention in various industries. Top-k queries, a popular research Topic in the database field, aim to retrieve the Top-k results that best match a user's query conditions from large ...
ZHANG Hang, XIONG Haoran, HE Zhenying
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Multi-dimensional top-k dominating queries [PDF]
The VLDB Journal, 2008 The top-k dominating query returns k data objectswhich dominate the highest number of objects in adataset. This query is an important tool for decision supportsince it provides data analysts an intuitive way for findingsignificant objects. In addition, it combines the advantagesof top-k and skyline queries without sharing their disadvantages:(i) the ...
Mamoulis, N, Yiu, ML
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Node Similarity Top-k Query of the Large-Scale Dynamic Graph With Weak Repeated Path Constraint
IEEE Access, 2019 Node similarity Top-k query has always been a hot topic in the graph field. The existing node similarity Top-k query methods often need to traverse the whole graph, so its iterative calculation process is very inefficient on the large-scale graph ...
Wang Junlu, Song Yulong, Song Baoyan
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Energies, 2021 After the failure of the power system, a large amount of alarm information will flood into the dispatching terminal instantly. At the same time, there are inevitable problems, such as the abnormal operation of the protection and the circuit breaker, the ...
Lei Jin +3 more
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Image Retrieval Method Based on Fuzzy Color Features and Fuzzy Smiliarity [PDF]
Jisuanji kexue, 2021 The performance of content-based image retrieval(CBIR) system mainly depends on two key technologies:image feature extraction and image feature matching.In this paper,the color features of all the images are extracted,and an appropriate fuzzy algorithm ...
WANG Chun-jing, LIU Li, TAN Yan-yan, ZHANG Hua-xiang
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