Results 61 to 70 of about 4,751,671 (372)
QIACO: A Quantum Dynamic Cost Ant System for Query Optimization in Distributed Database
IEEE Access, 2021 Query optimization is considered as the most significant part in a model of distributed database. The optimizer tries to find an optimal join order, which reduces the query execution cost. Several factors may affect the cost of query execution, including
Sayed A. Mohsin +2 more
doaj +1 more source
Organoids in pediatric cancer research
FEBS Letters, EarlyView.Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley +1 more source
Towards a query language for annotation graphs [PDF]
, 2000 The multidimensional, heterogeneous, and temporal nature of speech databases raises interesting challenges for representation and query. Recently, annotation graphs have been proposed as a general-purpose representational framework for speech databases ...
Bird, Steven +2 more
core +5 more sources
Design and analysis of stochastic DSS query optimizers in a distributed database system
Egyptian Informatics Journal, 2016 Query optimization is a stimulating task of any database system. A number of heuristics have been applied in recent times, which proposed new algorithms for substantially improving the performance of a query.
Manik Sharma +2 more
doaj +1 more source
By dawn or dusk—how circadian timing rewrites bacterial infection outcomes
FEBS Letters, EarlyView.The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo +2 more
wiley +1 more source
Information, 2018 Faced with the rapid growth of vector data and the urgent requirement of low-latency query, it has become an important and timely challenge to effectively achieve the scalable storage and efficient access of vector big data.
Hua Jiang +6 more
doaj +1 more source
Query optimization in relational database systems and cloud computing technology [PDF]
Компьютерные исследования и моделирование, 2015 Optimization is the heart of relational Database Management System (DMBS). Its can analyzes the SQL statements and determines the most efficient access plan to satisfy every query request.
A. V. Bogdanov, Lwin Thurein Kyaw
doaj +1 more source
Hematopoietic (stem) cells—The elixir of life?
FEBS Letters, EarlyView.The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo +4 more
wiley +1 more source
Consistent and Flexible Selectivity Estimation for High-dimensional Data
, 2020 Selectivity estimation aims at estimating the number of database objects that satisfy a selection criterion. Answering this problem accurately and efficiently is essential to many applications, such as density estimation, outlier detection, query ...
Ishikawa, Yoshiharu +7 more
core +1 more source
Optimizing the Performance of Data Warehouse by Query Cache Mechanism
IEEE Access, 2022 Fast access of data from Data Warehouse (DW) is a need for today’s Business Intelligence (BI). In the era of Big Data, the cache is regarded as one of the most effective techniques to improve the performance of accessing data.
Ch Anwar Ul Hassan +6 more
doaj +1 more source