Search Results - Query processing

Approximate Query Processing: What is New and Where to Go?: A Survey on Approximate Query Processing by Li, Kaiyu, Li, Guoliang

“… To alleviate this problem, approximate query processing (AQP) has been proposed, which aims to find an approximate answer as close as to the exact answer efficiently…”
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Simple Adaptive Query Processing vs. Learned Query Optimizers: Observations and Analysis: Simple Adaptive Query Processing vs. Learned Query Optimizers: Observations and Analysis by Zhang, Yunjia, Chronis, Yannis, Patel, Jignesh M., Rekatsinas, Theodoros

“…There have been many decades of work on optimizing query processing in database management systems…”
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Cohort query processing without misleading aging effects: Cohort query processing without misleading aging effects by Lu, Pengkai, Xie, Zhongle, Jiang, Dawei, Chen, Ke, Shou, Lidan

“… However, cohort analysis queries are difficult to specify and costly to execute in traditional database systems…”
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Privacy and Integrity Preserving Top- k Query Processing for Two-Tiered Sensor Networks by Rui Li, Liu, Alex X., Sheng Xiao, Hongyue Xu, Bruhadeshwar, Bezawada, Wang, Ann L.

“… Prior schemes on secure query processing are weak, because they reveal non-negligible information, and therefore, attackers can statistically estimate the data values using domain knowledge…”
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RAW-HF: Resource Availability & Workload-aware Hybrid Framework for raw data query processing by Patel, Mayank, Bhise, Minal

“… The traditional database management system spends significant time & resources to load the entire or required partitions of a dataset into DBMS before starting query execution…”
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QoS-Aware Approximate Query Processing for Smart Cities Spatial Data Streams by Al Jawarneh, Isam Mashhour, Bellavista, Paolo, Corradi, Antonio, Foschini, Luca, Montanari, Rebecca

“…Large amounts of georeferenced data streams arrive daily to stream processing systems…”
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Timo: In‐memory temporal query processing for big temporal data by Zheng, Xiao, Liu, Houkai, Wang, Xiujun, Wu, Xuangou, Yu, Feng

“… Therefore, how to process temporal operations with low latency and high throughput becomes a crucial problem for efficient data processing…”
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S3QLRDF: distributed SPARQL query processing using Apache Spark—a comparative performance study by Hassan, Mahmudul, Bansal, Srividya

“…) triples demands an efficient, scalable, and distributed storage along with a highly available and fault-tolerant parallel processing strategy…”
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Securing top-k query processing in two-tiered sensor networks by Kui, Xiaoyan, Feng, Jiannan, Zhou, Xinran, Du, Huakun, Deng, Xia, Zhong, Ping, Ma, Xingpo

“… To solve this problem, this paper proposes a weight-bind-based secure top-k query processing scheme (WBB-TQ…”
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Secure Top- k Query Processing in Unattended Tiered Sensor Networks by Zhang, Rui, Shi, Jing, Zhang, Yanchao, Huang, Xiaoxia

“… This paper presents a suite of novel schemes to enable verifiable top-k query processing…”
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Trajectory clustering and query processing analysis framework for knowledge discovery in cloud environment by Shabu, Selvin Shabu Lilly Pushpam Jany, Yadav, Kusum, Kariri, Elham, Gola, Kamal Kumar, AnulHaq, Mohd, Kumar, Anil

“… Traditional trajectory data partitions, indexing and query processing techniques are extended, so that they can take advantage of the cloud of large clusters of highly parallel processing capabilities…”
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Spatio-Temporal Keyword Query Processing Based on Key-Value Stores: Spatio-Temporal Keyword Query Processing Based on Key-Value Stores by Li, Ruiyuan, He, Xiang, Sun, Yingying, Jiang, Jun, Shang, You, Li, Guanyao, Chen, Chao

“… Querying with spatial, temporal, and keyword constraints on such data, known as spatio-temporal keyword query (STK query…”
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EAGLE—A Scalable Query Processing Engine for Linked Sensor Data by Nguyen Mau Quoc, Hoan, Serrano, Martin, Mau Nguyen, Han, G. Breslin, John, Le-Phuoc, Danh

“…–temporal support, but have poor performance for complex spatio–temporal aggregate queries…”
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Design and Implementation of Enabling SQL–Query Processing for Ethereum-Based Blockchain Systems by Han, Jongbeen, Seo, Yunhyeong, Lee, Sangjin, Kim, Sunggon, Son, Yongseok

“… In addition, the blockchain enables transaction processing and the creation of smart contracts…”
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Efficient query processing on large spatial databases: A performance study by Roumelis, George, Vassilakopoulos, Michael, Corral, Antonio, Manolopoulos, Yannis

“…•A spatial index, called xBR+-tree, is compared against the R*-tree and the R+-tree.•Performance of tree building and processing of common spatial queries is studied…”
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Efficient Oblivious Query Processing for Range and kNN Queries by Chang, Zhao, Xie, Dong, Li, Feifei, Phillips, Jeff M., Balasubramonian, Rajeev

“… However, most ORAM constructions are expensive and not suitable to deploy in a database for supporting query processing over large data…”
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RETRACTION: Trajectory clustering and query processing analysis framework for knowledge discovery in cloud environment

“…RETRACTION: S.S.L. P. J. Shabu, K. Yadav, E. Kariri, K. K. Gola, M. AnulHaq, A. Kumar, “Trajectory clustering and query processing analysis framework for knowledge discovery in cloud environment…”
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PIR with Compressed Queries and Amortized Query Processing by Angel, Sebastian, Chen, Hao, Laine, Kim, Setty, Srinath

“…). We use PBCs to build a multi query PIR scheme that allows the server to amortize its computational cost when processing a batch of requests from the same client…”
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OLAP parallel query processing in clouds with C‐ParGRES by W. M. Ribeiro, Marcello, A. B. Lima, Alexandre, Oliveira, Daniel

“… Online analytical processing (OLAP) queries take a long time to be processed, thus demanding high…”
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SubspaceDB : In-database subspace clustering for analytical query processing by Harikumar, Sandhya, Kaimal, M.R.

“… SubspaceDB provides a novel set of query operators, each with an optimization objective, to facilitate interactive analysis for subspace clustering…”
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