1984 IEEE First International Conference on Data Engineering最新文献_第2页

Representing roles in universal scheme interfaces 表示通用方案接口中的角色

1984 IEEE First International Conference on Data Engineering Pub Date : 1984-04-24 DOI: 10.1109/ICDE.1984.7271265

D. Maier, D. Rozenshtein, J. Stein

引用次数: 8

Judgmental-knowledge bases: Problem solving and expert systems 判断知识基础:问题解决和专家系统

1984 IEEE First International Conference on Data Engineering Pub Date : 1984-04-24 DOI: 10.1109/ICDE.1984.7271284

J. D. Johannes

引用次数: 0

Software and development process quality metrics 软件和开发过程质量度量

1984 IEEE First International Conference on Data Engineering Pub Date : 1984-04-24 DOI: 10.1109/ICDE.1984.7271280

R. H. Yacobellis

引用次数: 4

Overview of tools for knowledge base construction 知识库构建工具概述

1984 IEEE First International Conference on Data Engineering Pub Date : 1984-04-24 DOI: 10.1109/ICDE.1984.7271283

V. Kobler

引用次数: 2

Locking policies in distributed databases 分布式数据库中的锁定策略

1984 IEEE First International Conference on Data Engineering Pub Date : 1984-04-24 DOI: 10.1109/ICDE.1984.7271288

O. Wolfson

{"title":"Locking policies in distributed databases","authors":"O. Wolfson","doi":"10.1109/ICDE.1984.7271288","DOIUrl":"https://doi.org/10.1109/ICDE.1984.7271288","url":null,"abstract":"In Distributed Databases the typical problems of Centralized Databases become more difficult. One of them is Concurrency Control. It can be summarized as follows. Users of the Database access it by executing transactions. Different transactions are executed concurrently therefore their actions interleave. Without proper control this interleaving may produce incorrect results, even if individual transactions are correct. The Concurrency Control process has to prevent these situations. There are several possible mechanisms for controlling concurrency, of which the most widely used is Locking. In this paper we examine and analyze Locking as a Concurrency Control mechanism for Distributed Databases. We define Distributed Locking Policies (methods for locking entities in Distributed Databases) and show how existing Policies for a Centralized Database generalize to the Distributed case. We also define a new category of Distributed Locking Policies, D-policies, into which these generalizations fall. An algorithm which determines whether all transactions of a given D-policy are guaranteed to produce only correct interleavings (are safe) is presented. The algorithm is efficient, even though testing an arbitrary set of transactions for safety is coNP-complete. However, we prove that optimal locking of transactions to satisfy the conditions tested by the algorithm is NP-hard even for a Centralized Database.","PeriodicalId":365511,"journal":{"name":"1984 IEEE First International Conference on Data Engineering","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1984-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129082129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 6

An entity-relationship algebra 实体-关系代数

1984 IEEE First International Conference on Data Engineering Pub Date : 1984-04-24 DOI: 10.1109/ICDE.1984.7271312

C. Parent, S. Spaccapietra

引用次数: 30

A robust distributed solution to the generalized Dining Philosophers problem 一个健壮的分布式解决方案，以普遍的用餐哲学家的问题

1984 IEEE First International Conference on Data Engineering Pub Date : 1984-04-24 DOI: 10.1109/ICDE.1984.7271310

D. Sidhu, R. Pollack

引用次数: 3

An algebra for a directional binary entity-relationship model 方向二元实体-关系模型的代数

1984 IEEE First International Conference on Data Engineering Pub Date : 1984-04-24 DOI: 10.1109/ICDE.1984.7271212

Peter P. Chen

引用次数: 36

A natural language interface for performing database updates 用于执行数据库更新的自然语言接口

1984 IEEE First International Conference on Data Engineering Pub Date : 1984-04-24 DOI: 10.1109/ICDE.1984.7271256

J. Davidson

引用次数: 11

Evolution of a virtual machine supporting fault-tolerant distributed processes at a research laboratory 研究实验室中支持容错分布式流程的虚拟机的演进

1984 IEEE First International Conference on Data Engineering Pub Date : 1984-04-24 DOI: 10.1109/ICDE.1984.7271327

K. Kim

{"title":"Evolution of a virtual machine supporting fault-tolerant distributed processes at a research laboratory","authors":"K. Kim","doi":"10.1109/ICDE.1984.7271327","DOIUrl":"https://doi.org/10.1109/ICDE.1984.7271327","url":null,"abstract":"A research laboratory named The Reliable Distributed Microcomputing Laboratory (RDML) has been established at the University of South Florida (USF) in order to support experimental research on fault-tolerant distributed computing. In order to cover a broad range of distributed computing situations, both loosly coupled and tightly coupled network facilities have been constructed. Both network facilities are relatively easy to reconfigure physically as well as logically. The primary components of the network facilities are a variety of microcomputers. In order to ease the problem of dynamic process migration among a set of heterogeneous microcomputers, the same virtual machine architecture has been implemented on all the microcomputers. The virtual machine supports concurrent processes and the initial version implemented was a 16-bit stack machine architecture with several limitations, e.g., inflexible scheduling, lack of support for networking, etc. The virtual machine has continued to evolve since its initial implementation, some due to hardware upgrade, e.g., incorporation of new microprocessors such as MC68000, and others due to the requirements imposed by the schemes for fault-tolerant distributed computing. In this paper, we review the motivations, the trade-offs made, and the engineering lessons learned during the evolution of the virtual machine in recent years.","PeriodicalId":365511,"journal":{"name":"1984 IEEE First International Conference on Data Engineering","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1984-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114759271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 7