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1984 IEEE First International Conference on Data Engineering最新文献

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The Delay/Re-Read Protocol for concurrency control in databases 用于数据库并发控制的延迟/重读协议
1984 IEEE First International Conference on Data Engineering Pub Date : 1984-04-24 DOI: 10.1109/ICDE.1984.7271287
M. D. Mickunas, P. Jalote, R. Campbell
{"title":"The Delay/Re-Read Protocol for concurrency control in databases","authors":"M. D. Mickunas, P. Jalote, R. Campbell","doi":"10.1109/ICDE.1984.7271287","DOIUrl":"https://doi.org/10.1109/ICDE.1984.7271287","url":null,"abstract":"We present a new protocol, called the Delay /Re-Read Protocol, for controlling concurrent access to a database. The protocol uses a combination of preventive and corrective measures for maintaining consistency. On recognizing that a transaction has read inconsistent data, the Protocol applies a corrective measure which requires the transaction to re-read some data. Alternatively, on recognizing that a transaction is about to write data which will result in inconsistency, the Protocol applies a preventive measure which delays the Write. A Read request is always granted without delay. The Protocol is deadlock-free, requires no backup data, and supports a greater degree of concurrency than Two Phase Locking. A transaction is never aborted or delayed indefinitely by the Protocol.","PeriodicalId":365511,"journal":{"name":"1984 IEEE First International Conference on Data Engineering","volume":"6 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":"116151376","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: 3
Dynamics analysis in database design 数据库设计中的动态分析
1984 IEEE First International Conference on Data Engineering Pub Date : 1984-04-24 DOI: 10.1109/ICDE.1984.7271277
G. Balbo, G. Demo, A. Leva, P. Giolito
{"title":"Dynamics analysis in database design","authors":"G. Balbo, G. Demo, A. Leva, P. Giolito","doi":"10.1109/ICDE.1984.7271277","DOIUrl":"https://doi.org/10.1109/ICDE.1984.7271277","url":null,"abstract":"A consistent specification of quantitative processing characteristics is of crucial importance in order to obtain an efficient logical and physical database design. In this paper we propose a flow analysis of a Petri net representation of the interaction among operations within an organization function. The result of this analysis is the automa tic derivation of the operation activation frequencies. The project environment to which this analysis is relevant is also described.","PeriodicalId":365511,"journal":{"name":"1984 IEEE First International Conference on Data Engineering","volume":"30 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":"133786784","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: 2
The forms pattern language 表单模式语言
1984 IEEE First International Conference on Data Engineering Pub Date : 1984-04-24 DOI: 10.1109/ICDE.1984.7271271
J. Larson
{"title":"The forms pattern language","authors":"J. Larson","doi":"10.1109/ICDE.1984.7271271","DOIUrl":"https://doi.org/10.1109/ICDE.1984.7271271","url":null,"abstract":"Users can formulate database requests by constructing a pictorial pattern on a video display screen. Patterns may be constructed by entering conditions into electronic form templates and also by combining other patterns. Patterns form the basis of a language for database access. Requirements of language for office workers to access a database are outlined. We present a formal description of the Forms Pattern Language and illustrate how this language can be used to interactively formulate database requests and browse through the database contents. The Forms Pattern Language is evaluated with respect to the language requirements of office workers. A linear. keyword-oriented version and a pictorial version of the Forms Pattern Language are also presented.","PeriodicalId":365511,"journal":{"name":"1984 IEEE First International Conference on Data Engineering","volume":"43 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":"134293749","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: 11
Approaches for updating databases with incomplete information and nulls 使用不完整信息和空值更新数据库的方法
1984 IEEE First International Conference on Data Engineering Pub Date : 1984-04-24 DOI: 10.1109/ICDE.1984.7271290
A. M. Keller, Marianne Winslett Wilkins
{"title":"Approaches for updating databases with incomplete information and nulls","authors":"A. M. Keller, Marianne Winslett Wilkins","doi":"10.1109/ICDE.1984.7271290","DOIUrl":"https://doi.org/10.1109/ICDE.1984.7271290","url":null,"abstract":"In this paper we consider approaches to updating databases containing null values and incomplete information. Our approach distinguishes between modeling incompletely known worlds and modeling changes in these worlds. As an alternative to the open and closed world assumptions, we propose the modified closed world assumption. Along with the discussion of updating, we address some issues of refining incompletely specified information.","PeriodicalId":365511,"journal":{"name":"1984 IEEE First International Conference on Data Engineering","volume":"1 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":"129278795","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: 11
Architecture and algorithm for parallel execution of a join operation 并行执行连接操作的体系结构和算法
1984 IEEE First International Conference on Data Engineering Pub Date : 1984-04-24 DOI: 10.1109/ICDE.1984.7271268
T. Nakayama, M. Hirakawa, T. Ichikawa
{"title":"Architecture and algorithm for parallel execution of a join operation","authors":"T. Nakayama, M. Hirakawa, T. Ichikawa","doi":"10.1109/ICDE.1984.7271268","DOIUrl":"https://doi.org/10.1109/ICDE.1984.7271268","url":null,"abstract":"The relational database system ARES which authors have developed can manage semantic aspects of data to be retrieved, and has two types of relations, namely, conventional and semantic relations. The semantic relation is attached to a conventional relation in terms of a join operation every time a flexible interpretation of queries, accepting a certain amount of ambiguity in query conditions, is required. In order to overcome performance degradation caused by the additional join operation, the authors present an algorithm for parallel execution of a join operation assuming an architecture composed of one master unit and n slave units which are linked to each other. Here, relations are distributed to n slave units by means of hash. According to the static analysis of performances, it is expected that the execution efficiency of a join operation is improved by the extent of o(n) and o(n2) compared with the cases of a single processor using hash for restricting source-target pairs of the subrelations, and that not using hash, respectively. Further investigation, however, is needed in a dynamic environment.","PeriodicalId":365511,"journal":{"name":"1984 IEEE First International Conference on Data Engineering","volume":"19 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":"115393212","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: 5
Predicate trees: An approach to optimize relational query operations 谓词树:一种优化关系查询操作的方法
1984 IEEE First International Conference on Data Engineering Pub Date : 1984-04-24 DOI: 10.1109/ICDE.1984.7271304
G. Gardarin, P. Valduriez, Y. Viémont
{"title":"Predicate trees: An approach to optimize relational query operations","authors":"G. Gardarin, P. Valduriez, Y. Viémont","doi":"10.1109/ICDE.1984.7271304","DOIUrl":"https://doi.org/10.1109/ICDE.1984.7271304","url":null,"abstract":"With the advent of relational database systems, multi-key searching problems have became the focus of a great deal of research. In this paper, we present a new data structure called predicate trees for clustering tuples of a relation in a way that allows the system to accelerate a large number of multi-dimensional queries. The directories used for the implementation of predicate trees in SABRE are organized as relations which are searched efficiently by filters. One of the most significant advantages of predicate trees is the possibility of defining logical addresses based on content, called signatures, and to use filters to manage directories.","PeriodicalId":365511,"journal":{"name":"1984 IEEE First International Conference on Data Engineering","volume":"52 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":"116525548","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 advanced database system ADAM — Towards integrated management of engineering data 先进的数据库系统ADAM——面向工程数据的综合管理
1984 IEEE First International Conference on Data Engineering Pub Date : 1984-04-24 DOI: 10.1109/ICDE.1984.7271208
Yosihisa Udagawa, T. Mizoguchi
{"title":"An advanced database system ADAM — Towards integrated management of engineering data","authors":"Yosihisa Udagawa, T. Mizoguchi","doi":"10.1109/ICDE.1984.7271208","DOIUrl":"https://doi.org/10.1109/ICDE.1984.7271208","url":null,"abstract":"In order to achieve consistent management of design and analysis of engineering objects, data in engineering applications are required to be manipulated in an integrated manner. Engineering data comprise attributes, structural and pictorial information. ADAM uses the relational model as a basis for representing attributes information and structures of engineering data. As for pictorial information, ADAM data definition language provides figure specification parts where pictorial notations of instances are represented in terms of functions in computer graphics. In this paper, we observe engineering data and give some considerations on them. Four essential features of engineering data are discussed. Data definition and manipulation facilities of ADAM are presented. Instances with arguments are introduced for managing complex structures of engineering data and repeated appearances of similar objects. A graphic algorithm is discussed, which allows users to retrieve pictures in any intended details.","PeriodicalId":365511,"journal":{"name":"1984 IEEE First International Conference on Data Engineering","volume":"47 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":"128450068","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: 5
Building-in quality and productivity to a large software system 在大型软件系统中构建质量和生产力
1984 IEEE First International Conference on Data Engineering Pub Date : 1984-04-24 DOI: 10.1109/ICDE.1984.7271281
E. Prell, Alan P. Sheng
{"title":"Building-in quality and productivity to a large software system","authors":"E. Prell, Alan P. Sheng","doi":"10.1109/ICDE.1984.7271281","DOIUrl":"https://doi.org/10.1109/ICDE.1984.7271281","url":null,"abstract":"The ever-increasing demand for more and larger software systems requires that new and more effective ways of developing software be developed to increase the levels of quality and productivity. Experience with the 5ESS1\" switching system development at Bell Laboratories showed that simultaneous gains in productivity and quality were made by improving the methodology and the environment surrounding the development. This paper describes the key aspects of the management approach and the development methodology that directly contributed to those improvements in the software quality and project productivity. In addition, efforts for further improvements, including the implementation of productivity and quality circles, data and metric analysis, etc., are discussed. Although these experiences resulted from the development of a very large project, the basic ideas and techniques can still be applied to most software projects involving more than a small group of programmers.","PeriodicalId":365511,"journal":{"name":"1984 IEEE First International Conference on Data Engineering","volume":"13 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":"125321781","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: 2
From natural language requirements to good data base definitions — A data base design methodology 从自然语言需求到良好的数据库定义-数据库设计方法
1984 IEEE First International Conference on Data Engineering Pub Date : 1984-04-24 DOI: 10.1109/ICDE.1984.7271289
C. Eick
{"title":"From natural language requirements to good data base definitions — A data base design methodology","authors":"C. Eick","doi":"10.1109/ICDE.1984.7271289","DOIUrl":"https://doi.org/10.1109/ICDE.1984.7271289","url":null,"abstract":"A comprehensive and constructive design methodology for Logical data base design is proposed. A set of compatible computerized design tools is described, carrying out the following tasks: formalization of natural language information requirements; refinement, evaluation and transformation of conceptual data definitions; mapping conceptual to DBTG data definitions.","PeriodicalId":365511,"journal":{"name":"1984 IEEE First International Conference on Data Engineering","volume":"27 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":"116784888","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: 18
Cross-program simulator for any microprocessors 任何微处理器的跨程序模拟器
1984 IEEE First International Conference on Data Engineering Pub Date : 1984-04-24 DOI: 10.1109/ICDE.1984.7271321
A. Miyagawa, T. Itajima, T. Takagi, S. Nakano
{"title":"Cross-program simulator for any microprocessors","authors":"A. Miyagawa, T. Itajima, T. Takagi, S. Nakano","doi":"10.1109/ICDE.1984.7271321","DOIUrl":"https://doi.org/10.1109/ICDE.1984.7271321","url":null,"abstract":"For more effective software development of a microprocessor based system, a cross-simulator is helpful. To generate the simulators in a short period, we have developed the pan-simulator system with the method that the characteristic modules of the microprocessor are to be described, and linked with the prepared common simulator modules. This paper outlines the function and processing of the common simulator, and the microprocessor definition language and its compilation.","PeriodicalId":365511,"journal":{"name":"1984 IEEE First International Conference on Data Engineering","volume":"3 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":"121674087","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: 0
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