Constraint Handling Rules (CHR) is a high-level programming language based on
multiheaded multiset rewrite rules. Originally designed for writing user-defined constraint …

Abstract Constraint Handling Rules (CHR) is both an effective concurrent declarative
constraint-based programming language and a versatile computational formalism. While …

Abstract Constraint Handling Rules [1, 2] is a high-level programming language extension
based on multi-headed committed-choice multiset rewrite rules. It can be used as a stand …

The use of aggregates often allow for a compact and natural encoding of many real-life
problems. FO (Agg) is an extension of first order logic (FO) with aggregates. In this paper, we …

We extend the rule-based, multiset rewriting language CHR with multiset comprehension
patterns. Multiset comprehension provides the programmer with the ability to write multiset …

Automatic differentiation is a technique which allows a programmer to define a numerical
computation via compositions of a broad range of numeric and computational primitives and …

Abstract Constraint Handling Rules (CHR) is a high-level committed-choice language based
on multi-headed and guarded rules. Over the past decades, several extensions to CHR and …

CHR is a declarative, concurrent and committed choice rule-based constraint programming
language. We extend CHR with multiset comprehension patterns, providing the programmer …

This thesis intends to investigate two aspects of Constraint Handling Rules (CHR). It
proposes a compositional semantics and a technique for program transformation. CHR is a …

With the emergence of cloud computing and mobile applications, it is possible to find a web
service for almost everything. Moreover, developers can create complex applications by …