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Semantic Subtyping for Objects and Classes 对象和类的语义子类型
Computer/law journal Pub Date : 2016-12-05 DOI: 10.1007/978-3-642-38592-6_6
Ornela Dardha, D. Gorla, Daniele Varacca
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引用次数: 9
Transactional and Incremental Type Inference from Data Updates 从数据更新进行事务性和增量型推断
Computer/law journal Pub Date : 2015-07-06 DOI: 10.1007/978-3-319-20424-6_20
Yu Liu, P. McBrien
{"title":"Transactional and Incremental Type Inference from Data Updates","authors":"Yu Liu, P. McBrien","doi":"10.1007/978-3-319-20424-6_20","DOIUrl":"https://doi.org/10.1007/978-3-319-20424-6_20","url":null,"abstract":"","PeriodicalId":80982,"journal":{"name":"Computer/law journal","volume":"24 1","pages":"206-219"},"PeriodicalIF":0.0,"publicationDate":"2015-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83265122","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: 1
Planar and Quasi-Planar Simultaneous Geometric Embedding 平面和准平面同步几何嵌入
Computer/law journal Pub Date : 2014-09-24 DOI: 10.1093/comjnl/bxv048
E. D. Giacomo, W. Didimo, G. Liotta, H. Meijer, S. Wismath
{"title":"Planar and Quasi-Planar Simultaneous Geometric Embedding","authors":"E. D. Giacomo, W. Didimo, G. Liotta, H. Meijer, S. Wismath","doi":"10.1093/comjnl/bxv048","DOIUrl":"https://doi.org/10.1093/comjnl/bxv048","url":null,"abstract":"A simultaneous geometric embedding SGE of two planar graphs G 1 and G 2 with the same vertex set is a pair of straight-line planar drawings Γ1 of G 1 and Γ2 of G 2 such that each vertex is drawn at the same point in Γ1 and Γ2. Many papers have been devoted to the study of which pairs of graphs admit a SGE, and both positive and negative results have been proved. We extend the study of SGE, by introducing and characterizing a new class of planar graphs that makes it possible to immediately extend several positive results that rely on the property of strictly monotone paths. Moreover, we introduce a relaxation of the SGE setting where Γ1 and Γ2 are required to be quasi planar i.e., they can have crossings provided that there are no three mutually crossing edges. This relaxation allows for the simultaneous embedding of pairs of planar graphs that are not simultaneously embeddable in the classical SGE setting and opens up to several new interesting research questions.","PeriodicalId":80982,"journal":{"name":"Computer/law journal","volume":"56 1","pages":"52-63"},"PeriodicalIF":0.0,"publicationDate":"2014-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80316918","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: 17
An Engineering Approach to Formal Digital System Design 正式数字系统设计的工程方法
Computer/law journal Pub Date : 1994-09-19 DOI: 10.1093/comjnl/38.2.101
M. Larsson
{"title":"An Engineering Approach to Formal Digital System Design","authors":"M. Larsson","doi":"10.1093/comjnl/38.2.101","DOIUrl":"https://doi.org/10.1093/comjnl/38.2.101","url":null,"abstract":"This paper describes a first attempt at building design tools that amalgamate theorem proving and engineering methods. To gain acceptance such a tool must focus on the engineering task and proof steps must be hidden. From these ideas a prototype system based on the HOL proof assistant has been designed. The key features of this system are threefold. First, we use window reasoning for modelling the design process; Second, we have defined a set of application specific derived inference rules that implement common design tasks; Third, we have extended the design representation in logic with annotations to support efficient algorithmic reasoning.","PeriodicalId":80982,"journal":{"name":"Computer/law journal","volume":"9 1","pages":"300-315"},"PeriodicalIF":0.0,"publicationDate":"1994-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77730756","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: 24
Studying the ML Module System in HOL HOL中ML模块系统的研究
Computer/law journal Pub Date : 1994-09-19 DOI: 10.1093/comjnl/38.2.142
E. Gunter, S. Maharaj
{"title":"Studying the ML Module System in HOL","authors":"E. Gunter, S. Maharaj","doi":"10.1093/comjnl/38.2.142","DOIUrl":"https://doi.org/10.1093/comjnl/38.2.142","url":null,"abstract":"In an earlier project of VanInwegen and Gunter, the dynamic semantics of the Core of Standard ML (SML) was encoded in the HOL theorem-prover. We extend this by adding the dynamic Module system. We then develop a possible dynamic semantics for a Module system with higher order functors and projections and discuss how we use these to prove that evaluation in the proposed system is a conservative extension, in an appropiate sense, of evaluation in the SML Module system.","PeriodicalId":80982,"journal":{"name":"Computer/law journal","volume":"61 1","pages":"346-361"},"PeriodicalIF":0.0,"publicationDate":"1994-09-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88140625","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: 29
LCF Examples in HOL LCF在HOL中的例子
Computer/law journal Pub Date : 1994-06-03 DOI: 10.1093/comjnl/38.2.121
Sten Agerholm
{"title":"LCF Examples in HOL","authors":"Sten Agerholm","doi":"10.1093/comjnl/38.2.121","DOIUrl":"https://doi.org/10.1093/comjnl/38.2.121","url":null,"abstract":"The LCF system provides a logic of fixed point theory and is useful to reason about nontermination, recursive definitions and infinite-valued types such as lazy lists. Because of continual presence of bottom elements, it is clumsy for reasoning about finite-valued types and strict functions. The HOL system provides set theory and supports reasoning about finite-valued types and total functions well. In this paper a number of examples are used to demonstrate that an extension of HOL with domain theory combines the benefits of both systems. The examples illustrate reasoning about infinite values and nonterminating functions and show how domain and set theoretic reasoning can be mixed to advantage. An example presents a proof of correctness of a recursive unification algorithm using well-founded induction.","PeriodicalId":80982,"journal":{"name":"Computer/law journal","volume":"27 1","pages":"1-16"},"PeriodicalIF":0.0,"publicationDate":"1994-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77959084","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: 24
Representing Higher-Order Logic Proofs in HOL 表示HOL中的高阶逻辑证明
Computer/law journal Pub Date : 1994-01-01 DOI: 10.1093/comjnl/38.2.171
Joakim von Wright
{"title":"Representing Higher-Order Logic Proofs in HOL","authors":"Joakim von Wright","doi":"10.1093/comjnl/38.2.171","DOIUrl":"https://doi.org/10.1093/comjnl/38.2.171","url":null,"abstract":"","PeriodicalId":80982,"journal":{"name":"Computer/law journal","volume":"10 3","pages":"456-470"},"PeriodicalIF":0.0,"publicationDate":"1994-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72631511","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: 39
On the Physical Design of PRAMs 论pram的物理设计
Computer/law journal Pub Date : 1992-01-01 DOI: 10.1093/comjnl/36.8.756
Ferri Abolhassan, R. Drefenstedt, J. Keller, W. Paul, D. Scheerer
{"title":"On the Physical Design of PRAMs","authors":"Ferri Abolhassan, R. Drefenstedt, J. Keller, W. Paul, D. Scheerer","doi":"10.1093/comjnl/36.8.756","DOIUrl":"https://doi.org/10.1093/comjnl/36.8.756","url":null,"abstract":"We sketch the physical design of a prototype of a PRAM architecture based on Ranade’s Fluent Machine. We describe a specially developed processor chip with several instruction streams and a fast butterfly connection network. For the realization of the network we consider alternatively optoelectronic and electric transmission. We also discuss some basic software issues.","PeriodicalId":80982,"journal":{"name":"Computer/law journal","volume":"41 1","pages":"1-19"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82323208","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: 90
Computing Roadmaps of General Semi-Algebraic Sets 一般半代数集的计算路线图
Computer/law journal Pub Date : 1991-10-07 DOI: 10.1093/comjnl/36.5.504
J. Canny
{"title":"Computing Roadmaps of General Semi-Algebraic Sets","authors":"J. Canny","doi":"10.1093/comjnl/36.5.504","DOIUrl":"https://doi.org/10.1093/comjnl/36.5.504","url":null,"abstract":"In this paper we study the problem of determining whether two points lie in the same connected component of a semi-algebraic set S. Although we are mostly concerned with sets S ⊑ R n , our algorithm can also decide if points in an arbitrary set S ⊑ R n can be joined by a semi-algebraic path, for any real closed field R. Our algorithm computes a one-dimensional semi-algebraic subset ℜ(S) of S (actually of an embedding of S in a space (hat R^n ) for a certain real extension field (hat R) of the given field R. ℜ(S) is called the roadmap of S. Our construction uses the original roadmap algorithm described in [Can88a], [Can88b] which worked only for compact, regularly stratified sets.","PeriodicalId":80982,"journal":{"name":"Computer/law journal","volume":"1 1","pages":"94-107"},"PeriodicalIF":0.0,"publicationDate":"1991-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73978814","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: 113
On Exploiting the Structure of Martin-Löf's Theory of Types 论Martin-Löf类型理论的结构挖掘
Computer/law journal Pub Date : 1991-01-01 DOI: 10.1093/comjnl/36.4.387
Andrew Ireland
{"title":"On Exploiting the Structure of Martin-Löf's Theory of Types","authors":"Andrew Ireland","doi":"10.1093/comjnl/36.4.387","DOIUrl":"https://doi.org/10.1093/comjnl/36.4.387","url":null,"abstract":"Program synthesis in Martin-Lof’s Theory of Types is a theorem proving activity. We demonstrate how the rich structure of the theory may be exploited in the automation of this activity. Basic properties of data type constructors are shown to exhibit a general structure in the way in which they are expressed and derived. A proof procedure for negation is developed based upon these properties. As a consequence our proof procedure may be extended uniformly to incorporate new data types.","PeriodicalId":80982,"journal":{"name":"Computer/law journal","volume":"81 1","pages":"126-136"},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73009606","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: 1
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