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  Subjects -> ENGINEERING (Total: 2277 journals)
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ENGINEERING (1204 journals)            First | 1 2 3 4 5 6 7 | Last

Showing 1001 - 1200 of 1205 Journals sorted alphabetically
Production Engineering     Hybrid Journal   (Followers: 5)
Production Planning & Control: The Management of Operations     Hybrid Journal   (Followers: 10)
Progress in Agricultural Engineering Sciences     Full-text available via subscription  
Progress in Computational Fluid Dynamics, An International Journal     Hybrid Journal   (Followers: 7)
Progress in Energy and Combustion Science     Full-text available via subscription   (Followers: 10)
Progress in Nanotechnology and Nanomaterials     Open Access   (Followers: 4)
Progress in Photovoltaics: Research & Applications     Hybrid Journal   (Followers: 6)
Progress in Polymer Science     Full-text available via subscription   (Followers: 33)
Propellants, Explosives, Pyrotechnics     Hybrid Journal   (Followers: 292)
Propulsion and Power Research     Open Access   (Followers: 25)
Puente     Open Access  
Purinergic Signalling     Hybrid Journal   (Followers: 1)
Quaderns d’Història de l’Enginyeria     Open Access  
Quality and Reliability Engineering International     Hybrid Journal   (Followers: 14)
Quality Engineering     Hybrid Journal   (Followers: 9)
Radiochimica Acta     Hybrid Journal   (Followers: 5)
Rapid Prototyping Journal     Hybrid Journal   (Followers: 4)
Rare Metals     Hybrid Journal   (Followers: 1)
Reactive and Functional Polymers     Hybrid Journal   (Followers: 5)
Recent Patents on Engineering     Full-text available via subscription   (Followers: 3)
Recent Patents on Nanotechnology     Full-text available via subscription   (Followers: 3)
Recherche Transports Sécurité     Hybrid Journal   (Followers: 1)
Redes de Ingeniería     Open Access  
Regional Maritime University Journal     Full-text available via subscription   (Followers: 2)
Regular and Chaotic Dynamics     Hybrid Journal  
Rem : Revista Escola de Minas     Open Access   (Followers: 1)
Remote Sensing     Open Access   (Followers: 44)
Remote Sensing Letters     Hybrid Journal   (Followers: 40)
Requirements Engineering     Hybrid Journal   (Followers: 3)
Research Ideas and Outcomes     Open Access  
Research in Engineering Design     Hybrid Journal   (Followers: 11)
Research Journal of Nanoscience and Nanotechnology     Open Access   (Followers: 20)
Research Works of Air Force Institute of Technology     Open Access   (Followers: 1)
Resonance     Hybrid Journal   (Followers: 28)
Reviews in Advanced Sciences and Engineering     Partially Free   (Followers: 2)
Revista AIDIS de Ingeniería y Ciencias Ambientales. Investigación, desarrollo y práctica     Open Access  
Revista Brasileira de Engenharia Agrícola e Ambiental     Open Access   (Followers: 1)
Revista Ciencias e Ingeniería al Día     Open Access  
Revista CINTEX     Open Access   (Followers: 1)
Revista de Engenharia da Universidade Católica de Petrópolis     Open Access  
Revista de Ingeniería     Open Access  
Revista de Ingenieria Sismica     Open Access  
Revista de Investigación, Desarrollo e Innovación     Open Access  
Revista EIA     Open Access   (Followers: 1)
Revista Facultad de Ingeniería     Open Access   (Followers: 1)
Revista Facultad de Ingenieria - Universidad de Tarapaca     Open Access   (Followers: 1)
Revista Facultad de Ingeniería Universidad de Antioquia     Open Access   (Followers: 1)
Revista Fatec Zona Sul : REFAS     Open Access  
Revista Iberoamericana de Automática e Informática Industrial RIAI     Open Access  
Revista Informador Técnico     Open Access   (Followers: 1)
Revista Ingenieria de Construcción     Open Access   (Followers: 1)
Revista Internacional de Métodos Numéricos para Cálculo y Diseño en Ingeniería     Open Access   (Followers: 1)
Revista Logos Ciencia & Tecnología     Open Access   (Followers: 1)
Revue de Métallurgie     Full-text available via subscription  
Russian Engineering Research     Hybrid Journal  
Russian Journal of Non-Ferrous Metals     Hybrid Journal   (Followers: 22)
Russian Microelectronics     Hybrid Journal   (Followers: 1)
Sadhana     Open Access   (Followers: 9)
Safety Science     Hybrid Journal   (Followers: 30)
Scholedge International Journal of Multidisciplinary & Allied Studies     Open Access   (Followers: 3)
Science & Technique     Open Access  
Science and Education : Scientific Publication of BMSTU     Open Access  
Science and Engineering Ethics     Hybrid Journal   (Followers: 9)
Science and Technology     Open Access   (Followers: 2)
Science China Technological Sciences     Hybrid Journal  
Science Journal of Volgograd State University. Technology and innovations     Open Access  
Science Progress     Full-text available via subscription   (Followers: 2)
Scientia cum Industria     Open Access  
Scientific Drilling     Open Access  
Scientific Journal of Control Engineering     Open Access   (Followers: 1)
Scientific Journal of Pure and Applied Sciences     Open Access   (Followers: 1)
Sealing Technology     Full-text available via subscription   (Followers: 1)
Securitas Vialis     Hybrid Journal  
Security and Communication Networks     Hybrid Journal   (Followers: 3)
Selcuk University Journal of Engineering, Science and Technology     Open Access  
Selected Topics in Applied Earth Observations and Remote Sensing, IEEE Journal of     Hybrid Journal   (Followers: 50)
Semiconductors     Hybrid Journal  
Semiconductors and Semimetals     Full-text available via subscription   (Followers: 1)
Sensing and Imaging : An International Journal     Hybrid Journal   (Followers: 2)
Sensor Letters     Full-text available via subscription   (Followers: 2)
Sensors     Open Access   (Followers: 18)
Separation and Purification Technology     Hybrid Journal   (Followers: 9)
Services Computing, IEEE Transactions on     Hybrid Journal   (Followers: 5)
Shock and Vibration     Hybrid Journal   (Followers: 10)
SIAM Journal on Applied Dynamical Systems     Hybrid Journal   (Followers: 2)
SIAM Journal on Mathematical Analysis     Hybrid Journal   (Followers: 3)
SIAM Journal on Matrix Analysis and Applications     Hybrid Journal   (Followers: 1)
SIAM Journal on Numerical Analysis     Hybrid Journal   (Followers: 4)
SIAM Journal on Optimization     Hybrid Journal   (Followers: 8)
SIAM Review     Hybrid Journal   (Followers: 6)
SILICON     Hybrid Journal  
Sistemas & Telemática     Open Access   (Followers: 2)
Sleep and Biological Rhythms     Hybrid Journal   (Followers: 6)
Small     Hybrid Journal   (Followers: 11)
Smart Grid     Open Access  
Soft Computing     Hybrid Journal   (Followers: 8)
Software Engineering, IEEE Transactions on     Hybrid Journal   (Followers: 67)
Soil Dynamics and Earthquake Engineering     Hybrid Journal   (Followers: 15)
Soldagem & Inspeção     Open Access  
Solid-State Circuits Magazine, IEEE     Hybrid Journal   (Followers: 12)
SourceOCDE Developpement urbain, rural et regional     Full-text available via subscription   (Followers: 1)
SourceOCDE Energie     Full-text available via subscription  
SourceOECD Energy     Full-text available via subscription  
SourceOECD Science and Technology Statistics - SourceOCDE Base de donnees des sciences et de la technologie     Full-text available via subscription  
SourceOECD Transport     Full-text available via subscription   (Followers: 3)
SourceOECD Urban, Rural and Regional Development     Full-text available via subscription   (Followers: 1)
South African Computer Journal     Full-text available via subscription  
South African Journal of Agricultural Extension     Open Access   (Followers: 4)
South African Journal of Science     Open Access   (Followers: 2)
Sports Engineering     Hybrid Journal   (Followers: 2)
Stahlbau     Hybrid Journal   (Followers: 3)
Steel in Translation     Hybrid Journal  
Steel Research International     Hybrid Journal   (Followers: 25)
Stochastic Analysis and Applications     Hybrid Journal   (Followers: 2)
Stochastic Processes and their Applications     Hybrid Journal   (Followers: 5)
Stochastics and Dynamics     Hybrid Journal  
Strain     Hybrid Journal   (Followers: 2)
Strategic Planning for Energy and the Environment     Hybrid Journal   (Followers: 4)
Studies in Engineering and Technology     Open Access  
Studies in Interface Science     Full-text available via subscription   (Followers: 1)
Studies in Logic and Practical Reasoning     Full-text available via subscription  
Studies in Surface Science and Catalysis     Full-text available via subscription   (Followers: 1)
Sud-Sciences et Technologies     Open Access  
Superconductor Science and Technology     Hybrid Journal   (Followers: 2)
Surface Engineering     Hybrid Journal   (Followers: 3)
Surface Review and Letters     Hybrid Journal  
Surface Science Reports     Full-text available via subscription   (Followers: 18)
Survey Review     Hybrid Journal   (Followers: 6)
Surveying and Land Information Science     Full-text available via subscription   (Followers: 1)
Sustainability Science     Hybrid Journal   (Followers: 8)
Sustainability Science and Engineering     Full-text available via subscription   (Followers: 4)
Sustainable Management of Sediment Resources     Full-text available via subscription  
Swiss Journal of Geosciences     Hybrid Journal   (Followers: 1)
Symmetry     Open Access  
Synthesis Lectures on Algorithms and Software in Engineering     Full-text available via subscription   (Followers: 3)
Synthesis Lectures on Antennas     Full-text available via subscription   (Followers: 6)
Synthesis Lectures on Biomedical Engineering     Full-text available via subscription  
Synthesis Lectures on Computational Electromagnetics     Full-text available via subscription   (Followers: 5)
Synthesis Lectures on Energy and the Environment: Technology, Science, and Society     Full-text available via subscription   (Followers: 2)
Synthesis Lectures on Engineering     Full-text available via subscription  
Synthesis Lectures on Global Engineering     Full-text available via subscription  
Synthesis Lectures on Professionalism and Career Advancement for Scientists and Engineers     Full-text available via subscription   (Followers: 2)
Synthetic Metals     Hybrid Journal   (Followers: 4)
Systems Engineering     Hybrid Journal   (Followers: 6)
Systems Engineering Procedia     Open Access  
Systems Research Forum     Hybrid Journal  
Systems Science & Control Engineering     Open Access   (Followers: 5)
Technological Engineering     Open Access  
Technologies     Open Access   (Followers: 1)
TECHNOLOGY     Hybrid Journal  
Technology and Innovation     Full-text available via subscription   (Followers: 3)
Technology in Society     Hybrid Journal   (Followers: 4)
Technometrics     Full-text available via subscription   (Followers: 6)
Tecnologia, Ciencia, Educacion     Open Access   (Followers: 1)
Tecnura     Open Access  
Telecommunications Policy     Hybrid Journal   (Followers: 32)
Terahertz Science and Technology, IEEE Transactions on     Hybrid Journal   (Followers: 2)
Textile Science and Technology     Full-text available via subscription   (Followers: 4)
The Journal of Supercomputing     Hybrid Journal   (Followers: 1)
The Scientific World Journal     Open Access  
Theoretical and Computational Fluid Dynamics     Hybrid Journal   (Followers: 14)
Theoretical Issues in Ergonomics Science     Hybrid Journal   (Followers: 4)
Thermal Engineering     Hybrid Journal   (Followers: 7)
Tikrit Journal of Engineering Science     Open Access  
tm - Technisches Messen     Hybrid Journal   (Followers: 3)
Topics in Catalysis     Hybrid Journal   (Followers: 1)
Traffic Injury Prevention     Hybrid Journal   (Followers: 64)
TRANSACTIONS of the VŠB - Technical University of Ostrava, Safety Engineering Series     Open Access   (Followers: 1)
Transactions of Tianjin University     Full-text available via subscription  
Transport and Telecommunication Journal     Open Access   (Followers: 4)
Transport World Africa     Full-text available via subscription   (Followers: 3)
Transportation Research Record : Journal of the Transportation Research Board     Full-text available via subscription   (Followers: 34)
Transportmetrica A : Transport Science     Hybrid Journal   (Followers: 5)
Trends in Applied Sciences Research     Open Access   (Followers: 1)
Tribology in Industry     Open Access   (Followers: 1)
Tribology International     Hybrid Journal   (Followers: 43)
Tribology Letters     Hybrid Journal   (Followers: 5)
Tribology Transactions     Hybrid Journal   (Followers: 33)
Ultramicroscopy     Hybrid Journal   (Followers: 2)
Uludağ University Journal of The Faculty of Engineering     Open Access  
Universal Journal of Applied Science     Open Access   (Followers: 2)
Universal Journal of Engineering Science     Open Access   (Followers: 1)
Utilities Policy     Hybrid Journal   (Followers: 2)
Vacuum     Hybrid Journal   (Followers: 12)
Virtual and Physical Prototyping     Hybrid Journal   (Followers: 3)
Visualization in Engineering     Open Access  
Walailak Journal of Science and Technology     Open Access  
Waste and Biomass Valorization     Hybrid Journal   (Followers: 2)
Waste Management Series     Full-text available via subscription   (Followers: 2)
Waves in Random and Complex Media     Hybrid Journal  
Waves, Wavelets and Fractals     Open Access  
Wear     Hybrid Journal   (Followers: 28)
Welding in the World     Hybrid Journal   (Followers: 5)
West African Journal of Industrial and Academic Research     Open Access   (Followers: 1)
Women in Engineering Magazine, IEEE     Full-text available via subscription   (Followers: 12)
World Journal of Engineering     Full-text available via subscription   (Followers: 3)
World Journal of Engineering and Technology     Open Access  
World Journal of Environmental Engineering     Open Access   (Followers: 2)
World Pumps     Full-text available via subscription   (Followers: 2)
World Science and Technology     Full-text available via subscription  

  First | 1 2 3 4 5 6 7 | Last

Journal Cover Journal of Applied Logic
  [SJR: 0.753]   [H-I: 22]   [0 followers]  Follow
   Full-text available via subscription Subscription journal
   ISSN (Print) 1570-8683
   Published by Elsevier Homepage  [3043 journals]
  • Structure features for SAT instances classification
    • Authors: Carlos Ansótegui; Maria Luisa Bonet; Jesús Giráldez-Cru; Jordi Levy
      Pages: 27 - 39
      Abstract: Publication date: September 2017
      Source:Journal of Applied Logic, Volume 23
      Author(s): Carlos Ansótegui, Maria Luisa Bonet, Jesús Giráldez-Cru, Jordi Levy
      The success of portfolio approaches in SAT solving relies on the observation that different SAT solvers may dramatically change their performance depending on the class of SAT instances they are trying to solve. In these approaches, a set of features of the problem is used to build a prediction model, which classifies instances into classes, and computes the fastest algorithm to solve each of them. Therefore, the set of features used to build these classifiers plays a crucial role. Traditionally, portfolio SAT solvers include features about the structure of the problem and its hardness. Recently, there have been some attempts to better characterize the structure of industrial SAT instances. In this paper, we use some structure features of industrial SAT instances to build some classifiers of industrial SAT families of instances. Namely, they are the scale-free structure, the community structure and the self-similar structure. First, we measure the effectiveness of these classifiers by comparing them to other sets of SAT features commonly used in portfolio SAT solving approaches. Then, we evaluate the performance of this set of structure features when used in a real portfolio SAT solver. Finally, we analyze the relevance of these features on the analyzed classifiers.

      PubDate: 2017-07-23T04:35:40Z
      DOI: 10.1016/j.jal.2016.11.004
      Issue No: Vol. 23 (2017)
  • Modeling group assessments by means of hesitant fuzzy linguistic term sets
    • Authors: Jordi Montserrat-Adell; Núria Agell; Mónica Sánchez; Francesc Prats; Francisco Javier Ruiz
      Pages: 40 - 50
      Abstract: Publication date: September 2017
      Source:Journal of Applied Logic, Volume 23
      Author(s): Jordi Montserrat-Adell, Núria Agell, Mónica Sánchez, Francesc Prats, Francisco Javier Ruiz
      Hesitant linguistic term sets have been introduced to capture the human way of reasoning using linguistic expressions involving different levels of precision. In this paper, a lattice structure is provided to the set of hesitant fuzzy linguistic term sets by means of the operations intersection and connected union. In addition, in a group decision making framework, hesitant fuzzy linguistic descriptions are defined to manage situations in which decision makers are assessing different alternatives by means of hesitant fuzzy linguistic term sets. Based on the introduced lattice structure, two distances between hesitant fuzzy linguistic descriptions are defined. These metric structures allow distances between decision makers to be computed. A centroid of the decision making group is proposed for each distance to model group representatives in the considered group decision making framework.

      PubDate: 2017-07-23T04:35:40Z
      DOI: 10.1016/j.jal.2016.11.005
      Issue No: Vol. 23 (2017)
  • A reward-based approach for preference modeling: A case study
    • Authors: Eva Armengol; Josep Puyol-Gruart
      Pages: 51 - 69
      Abstract: Publication date: September 2017
      Source:Journal of Applied Logic, Volume 23
      Author(s): Eva Armengol, Josep Puyol-Gruart
      Most of reasoning for decision making in daily life is based on preferences. As other kinds of reasoning processes, there are many formalisms trying to capture preferences, however none of them is able to capture all the subtleties of the human reasoning. In this paper we analyze how to formalize the preferences expressed by humans and how to reason with them to produce rankings. Particularly, we show that qualitative preferences are best represented with a combination of reward logics and conditional logics. We propose a new algorithm based on ideas of similarity between objects commonly used in case-based reasoning. We see that the new approach produces rankings close to the ones expressed by users.

      PubDate: 2017-07-23T04:35:40Z
      DOI: 10.1016/j.jal.2016.11.006
      Issue No: Vol. 23 (2017)
  • A study on anomaly detection ensembles
    • Authors: Alvin Chiang; Esther David; Yuh-Jye Lee; Guy Leshem; Yi-Ren Yeh
      Pages: 1 - 13
      Abstract: Publication date: May 2017
      Source:Journal of Applied Logic, Volume 21
      Author(s): Alvin Chiang, Esther David, Yuh-Jye Lee, Guy Leshem, Yi-Ren Yeh
      An anomaly, or outlier, is an object exhibiting differences that suggest it belongs to an as-yet undefined class or category. Early detection of anomalies often proves of great importance because they may correspond to events such as fraud, spam, or device malfunctions. By automating the creation of a ranking or list of deviations, we can save time and decrease the cognitive overload of the individuals or groups responsible for responding to such events. Over the years many anomaly and outlier metrics have been developed. In this paper we propose a clustering-based score ensembling method for outlier detection. Using benchmark datasets we evaluate quantitatively the robustness and accuracy of different ensemble strategies. We find that ensembling strategies offer only limited value for increasing overall performance, but provide robustness by negating the influence of severely underperforming models.

      PubDate: 2017-01-06T20:04:38Z
      DOI: 10.1016/j.jal.2016.12.002
      Issue No: Vol. 21 (2017)
  • On harmony and permuting conversions
    • Authors: Nissim Francez
      Pages: 14 - 23
      Abstract: Publication date: May 2017
      Source:Journal of Applied Logic, Volume 21
      Author(s): Nissim Francez
      The paper exposes the relevance of permuting conversions (in natural-deduction systems) to the role of such systems in the theory of meaning known as proof-theoretic semantics, by relating permuting conversion to harmony, hitherto related to normalisation only. This is achieved by showing the connection of permuting conversion to the general notion of canonicity, once applied to arbitrary derivations from open assumption. In the course of exposing the relationship of permuting conversions to harmony, a general definition of the former is proposed, generalising the specific cases of disjunction and existential quantifiers considered in the literature.

      PubDate: 2017-01-06T20:04:38Z
      DOI: 10.1016/j.jal.2016.12.004
      Issue No: Vol. 21 (2017)
  • Fuzzy microaggregation for the transparency principle
    • Authors: Torra
      Abstract: Publication date: September 2017
      Source:Journal of Applied Logic, Volume 23
      Author(s): Vicenç Torra
      Microaggregation has been proven to be an effective method for data protection in the areas of Privacy Preserving Data Mining (PPDM) and Statistical Disclosure Control (SDC). This method consists of applying a clustering method to the data set to be protected, and then replacing each of the data by the cluster representative. In this paper we propose a new method for microaggregation based on fuzzy clustering. This new approach has been defined with the main goal of being nondeterministic on the assignment of cluster centers to the original data, and at the same time being simple in its definition. Being nondeterministic permits us to overcome some of the attacks standard microaggregation suffers.

      PubDate: 2017-07-23T04:35:40Z
  • The never-ending recursion
    • Authors: Sergio Mota
      Abstract: Publication date: Available online 14 March 2017
      Source:Journal of Applied Logic
      Author(s): Sergio Mota
      This paper is devoted to three main aims: (I) to present the conceptual relations between recursion, on the one hand, and inductive definitions and mathematical induction, on the other; as well as among recursion and self-involvement. In order to receive the original and primary use of recursion in cognitive science, it is important to bear in mind the conceptual relations and distinctions between them. (II) To analyze the interpretation of recursion from two different approaches. The first one, mainly represented by Chomsky, emphasizes the origin of recursion in the formal sciences, and applies it to characterize the mechanical procedure which underlies the language faculty. On this view, recursion is a property of the mind/brain. The second one disregards this conception of recursion and redefines it in terms of either the processing of self-embedded structures (e.g. [20]) or the ability to represent multiple hierarchical levels using the same rule (e.g. [45]); or as follows: recursion refers to the ability to embed structures within structures of the same kind (e.g. [48]). (III) To discuss whether or not this change in the meaning of recursion is more suitable than the original one for empirical research.

      PubDate: 2017-03-20T15:22:53Z
      DOI: 10.1016/j.jal.2017.03.003
  • Formal analysis of SEU mitigation for early dependability and
           performability analysis of FPGA-based space applications
    • Authors: Khaza Anuarul Hoque; Otmane Ait Mohamed; Yvon Savaria
      Abstract: Publication date: Available online 4 March 2017
      Source:Journal of Applied Logic
      Author(s): Khaza Anuarul Hoque, Otmane Ait Mohamed, Yvon Savaria
      SRAM-based FPGAs are increasingly popular in the aerospace industry due to their field programmability and low cost. However, they suffer from cosmic radiation induced Single Event Upsets (SEUs). In safety-critical applications, the dependability of the design is a prime concern since failures may have catastrophic consequences. An early analysis of the relationship between dependability metrics, performability-area trade-off, and different mitigation techniques for such applications can reduce the design effort while increasing the design confidence. This paper introduces a novel methodology based on probabilistic model checking, for the analysis of the reliability, availability, safety and performance-area tradeoffs of safety-critical systems for early design decisions. Starting from the high-level description of a system, a Markov reward model is constructed from the Control Data Flow Graph (CDFG) and a component characterization library targeting FPGAs. The proposed model and exhaustive analysis capture all the failure states (based on the fault detection coverage) and repairs possible in the system. We present quantitative results based on an FIR filter circuit to illustrate the applicability of the proposed approach and to demonstrate that a wide range of useful dependability and performability properties can be analyzed using the proposed methodology. The modeling results show the relationship between different mitigation techniques and fault detection coverage, exposing their direct impact on the design for early decisions.

      PubDate: 2017-03-20T15:22:53Z
      DOI: 10.1016/j.jal.2017.03.001
  • On the Complexity of Input/Output Logic
    • Authors: Xin Sun; Livio Robaldo
      Abstract: Publication date: Available online 4 March 2017
      Source:Journal of Applied Logic
      Author(s): Xin Sun, Livio Robaldo
      Input/output logic is a formalism in deontic logic and normative reasoning. Unlike deontic logical frameworks based on possible-world semantics, input/output logic adopts norm-based semantics in the sense of [13], specifically operational semantics. It is well-known in theoretical computer science that complexity is an indispensable component of every logic. So far, previous literature in input/output systems focuses on proof theory and semantics, while neglects complexity. This paper adds the missing component by giving the complexity results of main decision problems in input/output logic. Our results show that input/output logic is coNP hard and in the 2nd level of the polynomial hierarchy.

      PubDate: 2017-03-20T15:22:53Z
      DOI: 10.1016/j.jal.2017.03.002
  • Rewrite Rules for CTL*
    • Authors: John C. McCabe-Dansted; Mark Reynolds
      Abstract: Publication date: Available online 23 December 2016
      Source:Journal of Applied Logic
      Author(s): John C. MCabe-Dansted, Mark Reynolds
      A number of procedures for checking the satisfiability of formulas in the important branching time temporal logic CTL* have recently been proposed. In this paper we develop techniques to support such reasoning based on rewrite rules. We consider how to automatically generate and quickly validate such rewrites. The techniques are based on use of so-called non-local and bundled variants of computation tree logics. We show that such rules can quickly simplify CTL* formulas. These simplified formulas are shorter and easier to reason with using existing decision procedures for CTL*, as demonstrated by significant speed-ups across a wide range of benchmark formulas. In this paper we provide both an Associative Commutative sound, confluent and terminating term rewrite system as well as a simple greedy rewrite system. We test them on a useful set of benchmarks. There are practical applications for theorem-proving and model-checking.

      PubDate: 2017-01-06T20:04:38Z
      DOI: 10.1016/j.jal.2016.12.003
  • Epistemic protocols for dynamic gossip
    • Authors: Hans van Ditmarsch; Jan van Eijck; Pere Pardo; Rahim Ramezanian; François Schwarzentruber
      Abstract: Publication date: Available online 5 December 2016
      Source:Journal of Applied Logic
      Author(s): Hans van Ditmarsch, Jan van Eijck, Pere Pardo, Rahim Ramezanian, François Schwarzentruber
      A gossip protocol is a procedure for spreading secrets among a group of agents, using a connection graph. In each call between a pair of connected agents, the two agents share all the secrets they have learnt. In dynamic gossip problems, dynamic connection graphs are enabled by permitting agents to spread as well the telephone numbers of other agents they know. This paper characterizes different distributed epistemic protocols in terms of the (largest) class of graphs where each protocol is successful, i.e. where the protocol necessarily ends up with all agents knowing all secrets.

      PubDate: 2016-12-06T13:36:07Z
      DOI: 10.1016/j.jal.2016.12.001
  • On expressive power of basic modal intuitionistic logic as a fragment of
           classical FOL
    • Authors: Grigory K. Olkhovikov
      Abstract: Publication date: Available online 24 November 2016
      Source:Journal of Applied Logic
      Author(s): Grigory K. Olkhovikov
      The modal characterization theorem by J. van Benthem characterizes classical modal logic as the bisimulation invariant fragment of first-order logic. In this paper, we prove a similar characterization theorem for intuitionistic modal logic. For this purpose we introduce the notion of modal asimulation as an analogue of bisimulations. The paper treats four different fragments of first-order logic induced by their respective versions of Kripke-style semantics for modal intuitionistic logic. It is shown further that this characterization can be easily carried over to arbitrary first-order definable subclasses of classical first-order models.

      PubDate: 2016-12-06T13:36:07Z
      DOI: 10.1016/j.jal.2016.11.036
  • Price of privacy
    • Authors: Pavel Naumov; Jia Tao
      Abstract: Publication date: Available online 24 November 2016
      Source:Journal of Applied Logic
      Author(s): Pavel Naumov, Jia Tao
      The article proposes a logical framework for reasoning about agents' ability to protect their privacy by hiding certain information from a privacy intruder. It is assumed that the knowledge of the intruder is derived from the observation of pieces of evidence and that there is a cost associated with the elimination of the evidence. The logical framework contains a modal operator labeled by a group of agents and a total budget available to this group. The key contribution of this work is the proposed incorporation of the cost factor into privacy protection reasoning within the standard modal logic framework. The main technical result are the soundness and completeness theorems for the introduced logical system with respect to a formally defined semantics.

      PubDate: 2016-12-06T13:36:07Z
      DOI: 10.1016/j.jal.2016.11.035
  • What kind of independence do we need for multiple iterated belief
    • Authors: Gabriele Kern-Isberner; Daniela Huvermann
      Abstract: Publication date: Available online 21 November 2016
      Source:Journal of Applied Logic
      Author(s): G. Kern-Isberner, D. Huvermann
      Multiple iterated revision requires advanced belief revision techniques that are able to integrate several pieces of new information into epistemic states. A crucial feature of this kind of revision is that the multiple pieces of information should be dealt with separately. Previous works have proposed several independence postulates which should ensure this. In this paper, we argue, first, that these postulates are too strong as they may enforce beliefs without justification, and second, that they are not necessary to ensure the principal aim of multiple revision. Instead, principles of conditional preservation guarantee a suitable handling of sets of sentences under revision. We formalize such a principle for multiple propositional revision for ranking functions, and we propose some novel postulates for multiple iterated revision that are in line with AGM and the Darwiche & Pearl postulates. We show that just a few fundamental postulates are enough to cover major approaches to (multiple) iterated belief revision, and that independence in the sense of Thielscher, Jin, and Delgrande is optional. As a proof of concept, we present propositional c-revisions of ranking functions.

      PubDate: 2016-12-06T13:36:07Z
      DOI: 10.1016/j.jal.2016.11.033
  • Efficient incremental planning and learning with multi-valued decision
    • Authors: Jean-Christophe Magnan; Pierre-Henri Wuillemin
      Abstract: Publication date: Available online 17 November 2016
      Source:Journal of Applied Logic
      Author(s): Jean-Christophe Magnan, Pierre-Henri Wuillemin
      In the domain of decision theoretic planning, the factored framework (Factored Markov Decision Process, fmdp) has produced optimized algorithms using structured representations such as Decision Trees (Structured Value Iteration (svi), Structured Policy Iteration (spi)) or Algebraic Decision Diagrams (Stochastic Planning Using Decision Diagrams (spudd)). Since it may be difficult to elaborate the factored models used by these algorithms, the architecture sdyna, which combines learning and planning algorithms using structured representations, was introduced. However, the state-of-the-art algorithms for incremental learning, for structured decision theoretic planning or for reinforcement learning require the problem to be specified only with binary variables and/or use data structures that can be improved in term of compactness. In this paper, we propose to use Multi-Valued Decision Diagrams (mdds) as a more efficient data structure for the sdyna architecture and describe a planning algorithm and an incremental learning algorithm dedicated to this new structured representation. For both planning and learning algorithms, we experimentally show that they allow significant improvements in time, in compactness of the computed policy and of the learned model. We then analyzed the combination of these two algorithms in an efficient sdyna instance for simultaneous learning and planning using mdds.

      PubDate: 2016-12-06T13:36:07Z
      DOI: 10.1016/j.jal.2016.11.032
  • Marketing impact on diffusion in social networks
    • Authors: Pavel Naumov; Jia Tao
      Abstract: Publication date: Available online 16 November 2016
      Source:Journal of Applied Logic
      Author(s): Pavel Naumov, Jia Tao
      The article proposes a way to add marketing into the standard threshold model of social networks. Within this framework, the article studies logical properties of the influence relation between sets of agents in social networks. Two different forms of this relation are considered: one for promotional marketing and the other for preventive marketing. In each case a sound and complete logical system describing properties of the influence relation is proposed. Both systems could be viewed as extensions of Armstrong's axioms of functional dependency from the database theory.

      PubDate: 2016-12-06T13:36:07Z
      DOI: 10.1016/j.jal.2016.11.034
  • Algebraic model counting
    • Authors: Angelika Kimmig; Guy Van den Broeck; Luc De Raedt
      Abstract: Publication date: Available online 15 November 2016
      Source:Journal of Applied Logic
      Author(s): Angelika Kimmig, Guy Van den Broeck, Luc De Raedt
      Weighted model counting (WMC) is a well-known inference task on knowledge bases, and the basis for some of the most efficient techniques for probabilistic inference in graphical models. We introduce algebraic model counting (AMC), a generalization of WMC to a semiring structure that provides a unified view on a range of tasks and existing results. We show that AMC generalizes many well-known tasks in a variety of domains such as probabilistic inference, soft constraints and network and database analysis. Furthermore, we investigate AMC from a knowledge compilation perspective and show that all AMC tasks can be evaluated using sd-DNNF circuits, which are strictly more succinct, and thus more efficient to evaluate, than direct representations of sets of models. We identify further characteristics of AMC instances that allow for evaluation on even more succinct circuits.

      PubDate: 2016-11-16T05:23:43Z
      DOI: 10.1016/j.jal.2016.11.031
  • Factored performance functions and decision making in continuous time
           Bayesian networks
    • Authors: Liessman Sturlaugson; Logan Perreault; John W. Sheppard
      Abstract: Publication date: Available online 15 November 2016
      Source:Journal of Applied Logic
      Author(s): Liessman Sturlaugson, Logan Perreault, John W. Sheppard
      The continuous time Bayesian network (CTBN) is a probabilistic graphical model that enables reasoning about complex, interdependent, and continuous-time subsystems. The model uses nodes to denote subsystems and arcs to denote conditional dependence. This dependence manifests in how the dynamics of a subsystem changes based on the current states of its parents in the network. While the original CTBN definition allows users to specify the dynamics of how the system evolves, users might also want to place value expressions over the dynamics of the model in the form of performance functions. We formalize these performance functions for the CTBN and show how they can be factored in the same way as the network, allowing what we argue is a more intuitive and explicit representation. For cases in which a performance function must involve multiple nodes, we show how to augment the structure of the CTBN to account for the performance interaction while maintaining the factorization of a single performance function for each node. We introduce the notion of optimization for CTBNs, and show how a family of performance functions can be used as the evaluation criteria for a multi-objective optimization procedure.

      PubDate: 2016-11-16T05:23:43Z
      DOI: 10.1016/j.jal.2016.11.030
  • Hierarchical beam search for solving most relevant explanation in Bayesian
    • Authors: Xiaoyuan Zhu; Changhe Yuan
      Abstract: Publication date: Available online 15 November 2016
      Source:Journal of Applied Logic
      Author(s): Xiaoyuan Zhu, Changhe Yuan
      Most Relevant Explanation (MRE) is an inference problem in Bayesian networks that finds the most relevant partial instantiation of target variables as an explanation for given evidence. It has been shown in recent literature that it addresses the overspecification problem of existing methods, such as MPE and MAP. In this paper, we propose a novel hierarchical beam search algorithm for solving MRE. The main idea is to use a second-level beam to limit the number of successors generated by the same parent so as to limit the similarity between the solutions in the first-level beam and result in a more diversified population. Three pruning criteria are also introduced to achieve further diversity. Empirical results show that the new algorithm outperforms local search and regular beam search.

      PubDate: 2016-11-16T05:23:43Z
      DOI: 10.1016/j.jal.2016.11.028
  • An ordered credibility contrast semantics for finite probability agreement
    • Authors: Paul Snow
      Abstract: Publication date: Available online 15 November 2016
      Source:Journal of Applied Logic
      Author(s): Paul Snow
      De Finetti's 1949 ordinal probability conjecture sparked enduring interest in intuitively meaningful necessary and sufficient conditions for orderings of finite propositional domains to agree with probability distributions. This paper motivates probabilistic ordering from subjective estimates of credibility contrasts revealed when ordered propositions are not monotonically related (e.g., A or B > C or D, but D > B ) and when a portfolio of prospects is accepted as preferable to alternatives despite not dominating them. The estimated contrast primitive offers a gambling-free, psychologically grounded foundation for treating individual instances and multisets of propositions as credally interchangeable with disjunctions and multisets of their constituent atomic propositions.

      PubDate: 2016-11-16T05:23:43Z
      DOI: 10.1016/j.jal.2016.11.029
  • Editorial
    • Authors: Souhila Kaci; Robert Mercer; Matthias Thimm
      Abstract: Publication date: Available online 14 November 2016
      Source:Journal of Applied Logic
      Author(s): Souhila Kaci, Robert Mercer, Matthias Thimm

      PubDate: 2016-11-16T05:23:43Z
      DOI: 10.1016/j.jal.2016.11.027
  • On the existence of free models in fuzzy universal Horn classes
    • Authors: Vicent Costa; Pilar Dellunde
      Abstract: Publication date: Available online 10 November 2016
      Source:Journal of Applied Logic
      Author(s): Vicent Costa, Pilar Dellunde
      This paper is a contribution to the study of the universal Horn fragment of predicate fuzzy logics, focusing on some relevant notions in logic programming. We introduce the notion of term structure associated to a set of formulas in the fuzzy context and we show the existence of free models in fuzzy universal Horn classes. We prove that every equality-free consistent universal Horn fuzzy theory has a Herbrand model.

      PubDate: 2016-11-10T04:37:59Z
      DOI: 10.1016/j.jal.2016.11.002
  • Characterisation of unidimensional averaged similarities
    • Authors: D. Boixader; J. Recasens
      Abstract: Publication date: Available online 9 November 2016
      Source:Journal of Applied Logic
      Author(s): D. Boixader, J. Recasens
      A T-indistinguishability operator (or fuzzy similarity relation) E is called unidimensional when it may be obtained from one single fuzzy subset (or fuzzy criterion). In this paper, we study when a T-indistinguishability operator that has been obtained as an average of many unidimensional ones is unidimensional too. In this case, the single fuzzy subset used to generate E is explicitly obtained as the quasi-arithmetic mean of all the fuzzy criteria primarily involved in the construction of E.

      PubDate: 2016-11-10T04:37:59Z
      DOI: 10.1016/j.jal.2016.11.003
  • Logical Methods in Artificial Intelligence Aplications
    • Authors: Eva Armengol; Dionís Boixader; Francisco Grimaldo
      Abstract: Publication date: Available online 9 November 2016
      Source:Journal of Applied Logic
      Author(s): Eva Armengol, Dionís Boixader, Francisco Grimaldo

      PubDate: 2016-11-10T04:37:59Z
      DOI: 10.1016/j.jal.2016.11.001
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