We propose an approach for single-agent epistemic planning in domains with incomplete knowledge. We argue that on the one hand the integration of epistemic reasoning into planning is useful because it makes the use of...
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ISBN:
(纸本)9789898565389
We propose an approach for single-agent epistemic planning in domains with incomplete knowledge. We argue that on the one hand the integration of epistemic reasoning into planning is useful because it makes the use of sensors more flexible. On the other hand, defining an epistemic problem description is an error prone task as the epistemic effects of actions are more complex than their usual physical effects. We apply the axioms of the Discrete Event Calculus Knowledge theory (DECKT) as rules to compile simple non-epistemic planning problem descriptions into complex epistemic descriptions. We show how the resulting planning problems are solved by our implemented prototype which is based on Answer Set programming (ASP).
Research on developing efficient and scalable ASP solvers can substantially benefit by the availability of data sets to experiment with. KB Bio 101 contains knowledge from a biology textbook, has been developed as par...
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the proceedings contain 21 papers. the special focus in this conference is on Invited Talks, Languages, Answer-Set programming and Abductive reasoning, Semantics, Constraints and logicprogramming, Answer-Set Programm...
ISBN:
(纸本)9783642415234
the proceedings contain 21 papers. the special focus in this conference is on Invited Talks, Languages, Answer-Set programming and Abductive reasoning, Semantics, Constraints and logicprogramming, Answer-Set programming and Model Expansion and WLP System Descriptions. the topics include: the IMPL policy language for managing inconsistency in multi-context systems;the parameterized complexity of constraint satisfaction and reasoning;translating nondeterministic functional language based on attribute grammars into java;sensitivity analysis for declarative relational query languages with ordinal ranks;a uniform fixpoint approach to the implementation of inference methods for deductive databases;translating answer-set programs into bit-vector logic;making use of advances in answer-set programming for abstract argumentation systems;confidentiality-preserving publishing of EDPs for credulous and skeptical users;every formula-based logic program has a least infinite-valued model;descriptive approach to preferred answer sets;solving modular model expansion: case studies;a constraint-based interactive product configurator;HEX-programs with nested program calls;a prototype of a knowledge-based programming environment;an IDE for answer-set programming-preliminary report;a system for visualising and visual editing of interpretations for answer-set programsa and unit testing in ASPIDE.
Stream reasoning is an emerging research area focusing on the development of reasoning techniques applicable to streams of rapidly changing, semantically enhanced data. In this paper, we consider data represented in D...
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Answer Set programming is a well-established paradigm of declarative programming in close relationship with other declarative formalisms such as SAT Modulo theories, Constraint Handling Rules, PDDL and many others. Si...
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ISBN:
(纸本)9783642405648
Answer Set programming is a well-established paradigm of declarative programming in close relationship with other declarative formalisms such as SAT Modulo theories, Constraint Handling Rules, PDDL and many others. Since its first informal editions, ASP systems are compared in the nowadays customary ASP Competition. the fourth ASP Competition, held in 2012/2013, is the sequel to previous editions and it was jointly organized by University of Calabria (Italy) and the Vienna University of Technology (Austria). Participants competed on a selected collection of benchmark problems, taken from a variety of research areas and real world applications. the Competition featured two tracks: the Model& Solve Track, held on an open problem encoding, on an open language basis, and open to any kind of system based on a declarative specification paradigm;and the System Track, held on the basis of fixed, public problem encodings, written in a standard ASP language.
Although several proposals to combine description logics withlogicprogramming rules have been brought forward, hardly any of these approaches capture the dynamic nature of the Semantic Web. In this paper, we look at...
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Answer Set programming (ASP) is a powerful language for knowledge representation and reasoning, that has been developed in the field of nonmonotonic reasoning and logicprogramming. the high knowledge-modeling power o...
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First-order modal logics (FMLs) can be modeled as natural fragments of classical higher-order logic (HOL). the FMLtoHOL tool exploits this fact and it enables the application of off-the-shelf HOL provers and model fin...
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Dynamic logic is an established instrument for program verification and for reasoning about the semantics of programs and programming languages. In this paper, we define an extension of dynamic logic, called Dynamic T...
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Metabolic network reconstruction is of great biological relevance because it offers a way to investigate the metabolic behavior of organisms. However, reconstruction remains a difficult task at boththe biological and...
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ISBN:
(纸本)9783642405648
Metabolic network reconstruction is of great biological relevance because it offers a way to investigate the metabolic behavior of organisms. However, reconstruction remains a difficult task at boththe biological and computational level. Building on previous work establishing an ASP-based approach to this problem, we present a report from the field resulting in the discovery of new biological knowledge. In fact, for the first time ever, we automatically reconstructed a metabolic network for a macroalgae. We accomplished this by taking advantage of ASP's combined optimization and enumeration capacities. Both computational tasks build on an improved ASP problem representation, incorporating the concept of reversible reactions. Interestingly, optimization greatly benefits from the usage of unsatisfiable cores available in the ASP solver unclasp. Applied to Ectocarpus siliculosus, only the combination of unclasp and clasp allowed us to obtain a metabolic network able to produce all recoverable metabolites among the experimentally measured ones. Moreover, 70% of the identified reactions are supported by an homologous enzyme in Ectocarpus siliculosus, confirming the quality of the reconstructed network from a biological viewpoint.
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