Illich's notion of conviviality centres on the balance between individual freedom to act and collective freedom from domination. this balance, or tension, is present in the design of most user-facing computer syst...
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ISBN:
(纸本)9781450375078
Illich's notion of conviviality centres on the balance between individual freedom to act and collective freedom from domination. this balance, or tension, is present in the design of most user-facing computer systems, and especially in the design of programming systems. Software lore has arisen with at best a skewed perspective on such issues, having developed from an industrial viewpoint. In this paper I survey some tentative design principles, extracted from examples of research work or (more often) systems used in practice, which (sometimes by accident) do show some regard for conviviality. Although preliminary, my hope is that these principles may yet develop into a collection of design hints at least equal, and largely countervailing, to the less conviviality-prone ideas circulating in today's software folklore. Relevant topics include language design, information hiding, language virtual machines, portability, classical logic, and layered system design. I also briefly consider the intertwined social and political constructs, such as copyleft, ownership and community responsibility, asking how to evolve or generalise these towards convivial ends.
We address the carpooling problem as a graph-theoretic problem. If the set of drivers is known in advance, then for any car capacity, the problem is equivalent to the assignment problem in bipartite graphs. Otherwise,...
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We address the carpooling problem as a graph-theoretic problem. If the set of drivers is known in advance, then for any car capacity, the problem is equivalent to the assignment problem in bipartite graphs. Otherwise, when we do not know in advance who will drive their vehicle and who will be a passenger, the problem is NP-hard. We devise and implement quick heuristics for both cases, based on graph algorithms, as well as parallel algorithms based on geometric/algebraic approach. We compare between the algorithms on random graphs, as well as on real, very large, data. (C) 2014 Published by Elsevier B.V.
this research presents a real-time automatic control system for ensuring reliable power supply in distributed generation systems. Leveraging Programmable logic Controllers (PLCs) and Supervisory Control and Data Acqui...
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We present an implementation platform for query-answering in default logics. the overall approach along with its implementation, the XRay system, allows for query-answering from default theories supporting local proof...
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ISBN:
(纸本)3540632557
We present an implementation platform for query-answering in default logics. the overall approach along with its implementation, the XRay system, allows for query-answering from default theories supporting local proof procedures. the deductive power of XRay stems from its usage of Prolog Technology theorem Proving Techniques (PTTP) supported by further enhancements, such as default lemma handling and regularity-based truncations of the underlying search space. the generality of the approach, allowing for a (simultaneous) treatment of different default logics, stems from a novel model-based approach to consistency checking.
An algebraic variant of multi-context logic is considered as an alternative to existing logical accounts of fictional discourse. An associative and idempotent operator on reified fictions supercedes Woods' olim mo...
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ISBN:
(纸本)3540403809
An algebraic variant of multi-context logic is considered as an alternative to existing logical accounts of fictional discourse. An associative and idempotent operator on reified fictions supercedes Woods' olim modality. Soundness and completeness results are obtained for certain inter-fictional deductive rules relative to semantical conditions which respect the 'authorial say-so' criterion of fictional truth.
To improve programming productivity, the right tools are crucial. this starts withthe choice of the programming language, which often predetermines the libraries and frameworks one can use. Polyglot runtime environme...
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ISBN:
(纸本)9781450375078
To improve programming productivity, the right tools are crucial. this starts withthe choice of the programming language, which often predetermines the libraries and frameworks one can use. Polyglot runtime environments, such as GraalVM, provide mechanisms for exchanging objects and sending messages across language boundaries, which allow developers to combine different languages, libraries, and frameworks with each other. However, polyglot application developers are obligated to properly use the right interfaces for accessing their data and objects from different languages. To reduce the mental complexity for developers and let them focus on the business logic, we introduce user-defined interface mappings - an approach for adapting cross-language messages at run-time to match an expected interface. thereby, the translation strategies are defined in an exchangeable and easy-to-edit configuration file. thus, different stakeholders ranging from library and framework developers up to application developers can use and extend these mappings for their needs.
Existing linearized section location methods for distribution networks are only applicable to single faults. In response, this paper proposes a linear integer programming method for section location in distribution ne...
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In this paper, we investigate the Lukasiewicz's 4-valued modal logic based on the Aristotele's modal syllogistic. We present a new interpretation of the set of algebraic truth values by introducing the truth a...
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Learning from visual scenes is an innate ability of human beings yet an unresolved and highly complex task for machines and is being addressed in the area of cognitive vision systems. Most of the present developments ...
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ISBN:
(纸本)9781424428991
Learning from visual scenes is an innate ability of human beings yet an unresolved and highly complex task for machines and is being addressed in the area of cognitive vision systems. Most of the present developments in cognitive vision systems adopt quantitative or model base approaches. Quantitative approaches involve tedious calculations and yield black box type of learning while in model base approaches the structure of the model has to he known before hand, which is not practical in all situations. therefore, this research work primarily adopts a qualitative approach in learning from visual scenes and inductive logicprogramming is used to learn rules of a visual scene from a pool of example scenes. the prototype system developed is capable of learning accurate rules, which in turn used for learning new models and the system is capable of learning beyond initial specifications.
the proceedings contain 222 papers. the topics discussed include: a note on pseudo-Archimedean and non-cancellative t-norm;on iterative boolean-like laws of fuzzy sets;treatment of the incomplete information in L-fuzz...
ISBN:
(纸本)8476538723
the proceedings contain 222 papers. the topics discussed include: a note on pseudo-Archimedean and non-cancellative t-norm;on iterative boolean-like laws of fuzzy sets;treatment of the incomplete information in L-fuzzy contexts*;on the characterization of self-dual aggregation operators;new axiomatizations of the shapley interaction index for bi-capacities;on fuzzy goal programming with piecewise linear membership functions;optimization of the fuzzy logic controller for an autonomous UAV;geometric interval type-2 fuzzy systems;aggregation and non-contradiction;a fuzzy clustering approach for supervision of biological processes by image processing;self-contradiction degrees in intuitionistic fuzzy sets;analysis of a mean operator for data fusion;and fuzzy models and cointegration analysis for the forecast of tourist demand.
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