Results 1 to 10 of about 5,071 (116)
A PID-Based kNN Query Processing Algorithm for Spatial Data [PDF]
Sensors, 2022 As a popular spatial operation, the k-Nearest Neighbors (kNN) query is widely used in various spatial application systems. How to efficiently process a kNN query on spatial big data has always been an important research topic in the field of spatial data
Baiyou Qiao
exaly +4 more sources
Secure K-Nearest neighbor queries in two-tiered mobile wireless sensor networks
Digital Communications and Networks, 2021 Tiered Mobile Wireless Sensor Network(TMWSN) is a new paradigm introduced by mobile edge computing. Now it has received wide attention because of its high scalability, robustness, deployment flexibility, and it has a wide range of application scenarios ...
Lihong Fan +4 more
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A KNN Dynamic Extended Query Strategy Based on GPU [PDF]
Jisuanji gongcheng, 2018 Traditional Graphics Processing Unit(GPU) executing PGrid index K-Nearest Neighbor(KNN) query method has problems such as large query granularity,redundant calculation,and unstable performance.Therefore,facing spatial KNN relation queries,a KNN query ...
TANG Jia,GONG Yili,LI Wenhai
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A new locally adaptive K-nearest centroid neighbor classification based on the average distance
Connection Science, 2022 The classification performance of a k-nearest neighbour (KNN) method is dependent on the choice of the k neighbours of a query. However, it is difficult to optimise the performance of KNN by choosing appropriate neighbours and an appropriate value of k ...
Benqiang Wang, Shunxiang Zhang
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IEEE Access, 2020 Cloud services with powerful resources are popularly used to manage exponentially increasing data and to carry out data mining to analyze the data. However, a data mining involving query can cause privacy problems by disclosing both the data and the ...
Jeongsu Park, Dong Hoon Lee
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A Novel Hybrid Approach for a Content-Based Image Retrieval Using Feature Fusion
Applied Sciences, 2023 The multimedia content generated by devices and image processing techniques requires high computation costs to retrieve images similar to the user’s query from the database.
Shahbaz Sikandar +2 more
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Medical Health Big Data Classification Based on KNN Classification Algorithm
IEEE Access, 2020 The rapid development of information technology has led to the development of medical informatization in the direction of intelligence. Medical health big data provides a basic data resource guarantee for medical service intelligence and smart healthcare.
Wenchao Xing, Yilin Bei
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IEEE Access, 2023 The proliferation of current and next-generation mobile and sensing devices has increased at an alarming rate. With these state-of-the-art devices, the global positioning system (GPS) has made remote sensing and location tracking more viable.
Aavash Bhandari +4 more
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A Distributed Hybrid Indexing for Continuous KNN Query Processing over Moving Objects
ISPRS International Journal of Geo-Information, 2022 The magnitude of highly dynamic spatial data is expanding rapidly due to the instantaneous evolution of mobile technology, resulting in challenges for continuous queries.
Imene Bareche, Ying Xia
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k Nearest Neighbor Search for Location-Dependent Sensor Data in MANETs
IEEE Access, 2015 K nearest neighbor (kNN) queries, which retrieve the k nearest sensor data items associated with a location (location-dependent sensor data) from the location of the query issuer, are useful for location-based services in mobile environments.
Yuka Komai +3 more
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