Results 31 to 40 of about 991,008 (302)

Design of distributed network video recording system for coal mine

open access: yesGong-kuang zidonghua, 2014
In view of phenomenon that traditional centralized network video recording system has insufficient video processing capacity of storage device and network congestion when videos involve multi-channel, large capacity and data concurrency, a distributed ...
HUANG Chenghua   +3 more
doaj   +1 more source

Repairing Serializability Bugs in Distributed Database Programs via Automated Schema Refactoring [PDF]

open access: yes, 2021
Serializability is a well-understood concurrency control mechanism that eases reasoning about highly-concurrent database programs. Unfortunately, enforcing serializability has a high-performance cost, especially on geographically distributed database clusters.
arxiv   +1 more source

Sundial: Harmonizing Concurrency Control and Caching in a Distributed OLTP Database Management System

open access: yesProceedings of the VLDB Endowment, 2018
Distributed transactions suffer from poor performance due to two major limiting factors. First, distributed transactions suffer from high latency because each of their accesses to remote data incurs a long network delay.
Xiangyao Yu   +5 more
semanticscholar   +1 more source

A new secure 2PL real-time concurrency control algorithm (ES2PL)

open access: yesInternational Journal of Intelligent Networks, 2022
A secure concurrency control algorithms must be devoid of covert channels originating from data conflicts between transactions, in addition to ensuring database integrity.
Ebrahim Abduljalil   +4 more
doaj  

Specifying Transaction Control to Serialize Concurrent Program Executions [PDF]

open access: yesLNCS, vol. 8477, Springer 2014, pp. 142-157, 2017
We define a programming language independent transaction controller and an operator which when applied to concurrent programs with shared locations turns their behavior with respect to some abstract termination criterion into a transactional behavior.
arxiv   +1 more source

On the use of non-concurrent controls in platform trials: A scoping review [PDF]

open access: yesTrials 2023, 2022
Platform trials gained popularity during the last few years as they increase flexibility compared to multi-arm trials by allowing new experimental arms entering when the trial already started. Using a shared control group in platform trials increases the trial efficiency compared to separate trials.
arxiv   +1 more source

Formal analysis of control and termination of distributed computation in weaker spaces

open access: yesCogent Engineering, 2018
The control and termination detection of a distributed computation involving large-scale distributed database is difficult in the presence of concurrency, random network delays, and varying reliability of computing nodes. The formal modeling and analysis
Susmit Bagchi
doaj   +1 more source

LF+ in Coq for "fast and loose" reasoning

open access: yesJournal of Formalized Reasoning, 2019
We develop the metatheory and the implementation of LF+, and discuss several applications. LF+ capitalizes on research work, carried out by the authors over more than a decade, on Logical Frameworks.
Fabio Alessi   +5 more
doaj   +1 more source

CSMA/CQ: A Novel SDN-Based Design to Enable Concurrent Execution of Channel Contention and Data Transmission in IEEE 802.11 Networks

open access: yesIEEE Access, 2017
Conventional 802.11 carrier sense multiple access/collision avoidance (CSMA/CA) networks perform channel contention and data transmission serially over a whole channel. This leads to low throughput efficiency.
Qinglin Zhao   +3 more
doaj   +1 more source

Distributed optimistic concurrency control with reduced rollback [PDF]

open access: yesDistributed Computing, 1987
Concurrency control algorithms have traditionally been based on locking and timestamp ordering mechanisms. Recently optimistic schemes have been proposed. In this paper a distributed, multi-version, optimistic concurrency control scheme is described which is particularly advantageous in a query-dominant environment.
Pankaj Gupta   +3 more
openaire   +2 more sources

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