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ICFP
2010
ACM
13 years 8 months ago
Polyvariant flow analysis with higher-ranked polymorphic types and higher-order effect operators
We present a type and effect system for flow analysis that makes essential use of higher-ranked polymorphism. We show that, for higher-order functions, the expressiveness of highe...
Stefan Holdermans, Jurriaan Hage
ENTCS
2006
161views more  ENTCS 2006»
13 years 7 months ago
Overview of Formal Concepts for Model Transformations Based on Typed Attributed Graph Transformation
In this paper we give an overview of formal concepts for model transformations between visual languages based on typed attributed graph transformation. We start with a basic conce...
Hartmut Ehrig, Karsten Ehrig
ER
2001
Springer
163views Database» more  ER 2001»
14 years 1 days ago
Towards Ontologically Based Semantics for UML Constructs
Abstract. Conceptual models are formal descriptions of application domains that are used in early stages of system development to support requirements analysis. The Unified Modeli...
Joerg Evermann, Yair Wand
LICS
1989
IEEE
13 years 11 months ago
Faithful Ideal Models for Recursive Polymorphic Types
We explore ideal models for a programming language with recursive polymorphic types, variants of the model studied by MacQueen, Plotkin, and Sethi. The use of suitable ideals yiel...
Martín Abadi, Benjamin C. Pierce, Gordon D....
VLDB
1991
ACM
190views Database» more  VLDB 1991»
13 years 11 months ago
Algebraic Properties of Bag Data Types
We explore the implications of supporting bags (i.e. multisets) in a data model and associated query language, and present some formal results concerned with the algebraic propert...
Joseph Albert