In this paper we apply a method to extend n-dimensional lattice-valued fuzzy negations by preserving the largest possible number of properties of these negations which are invariants under homomorphisms. Further, we a...
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ISBN:
(纸本)9789814619967
In this paper we apply a method to extend n-dimensional lattice-valued fuzzy negations by preserving the largest possible number of properties of these negations which are invariants under homomorphisms. Further, we also prove some related results and properties.
Femtocells has been regarded as one of the most promising approaches to improve indoor coverage and network capacity. The method of decentralized spectrum allocation between users has become more efficient. An adaptiv...
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ISBN:
(纸本)9789814619967
Femtocells has been regarded as one of the most promising approaches to improve indoor coverage and network capacity. The method of decentralized spectrum allocation between users has become more efficient. An adaptive spectrum allocation scheme based on matrix game is proposed, in which femto and macrocell base stations are players and the same spectrum is the resource players will choose to assign users, to minimize the affected interference among each other. The equilibrium is the output of the game, which is also the optimal spectrum allocation manner. The sub-optimal solution is also given to avoid that the equilibrium may not exist. And the comparison results show that the proposed scheme might be a solution for efficiently allocating the spectrum in hierarchical cell networks, as the improvement in terms of throughput, outage probability had been achieved.
Assessment systems of training based on Virtual Reality are used to measure users' skills when performing a procedure. This kind of systems can demand expressive time of CPU. A solution was pointed out using an ar...
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ISBN:
(纸本)9789814619967
Assessment systems of training based on Virtual Reality are used to measure users' skills when performing a procedure. This kind of systems can demand expressive time of CPU. A solution was pointed out using an architecture for assessment based on embedded systems. The goal of this paper is to analyze the efficiency of hardware architecture in producing good results, using two previously proposed online methods based on fuzzy sets.
HVAC (Heating, Ventilation and Air Conditioning) systems are important subsystems in buildings and it is necessary to control them in order to improve energetic efficiency. Conventional control systems have been used ...
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ISBN:
(纸本)9789814619967
HVAC (Heating, Ventilation and Air Conditioning) systems are important subsystems in buildings and it is necessary to control them in order to improve energetic efficiency. Conventional control systems have been used over the past years for controlling these systems with successful results. But classical control requires analytic models and HVAC are too complex processes to be mathematically represented. In this paper an approach based on fuzzy logic is proposed. The fuzzy control does not require the mathematical model and is able to incorporate the knowledge of an expert. Simulation results prove the feasibility of this solution.
On the basis of multiary alpha-resolution principle, alpha-multiary aresolution automated reasoning method-alpha-semi-lock semantic resolution method is studied in lattice-valued propositional logic system LP(X) based...
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ISBN:
(纸本)9789814619967
On the basis of multiary alpha-resolution principle, alpha-multiary aresolution automated reasoning method-alpha-semi-lock semantic resolution method is studied in lattice-valued propositional logic system LP(X) based on lattice implication algebra. Concretely, alpha-semi -lock semantic resolution method is established in LP(X), as well as its soundness and condition completeness.
This paper aims at giving thoughts about a proposal of a smart annotation regarding graphical documents. This research is dedicated to people with special needs, especially to blind or visually-impaired people. The id...
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ISBN:
(纸本)9789814619967
This paper aims at giving thoughts about a proposal of a smart annotation regarding graphical documents. This research is dedicated to people with special needs, especially to blind or visually-impaired people. The idea is to propose a software that can annotate graphs with semantic descriptors (i.e. sentences) automatically.
This paper mainly focus on building the prime ideals of non regular residuated lattices. Firstly, two types prime ideals of a residuated lattice are introduced, the relations between the two types ideals are studied, ...
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ISBN:
(纸本)9789814619967
This paper mainly focus on building the prime ideals of non regular residuated lattices. Firstly, two types prime ideals of a residuated lattice are introduced, the relations between the two types ideals are studied, in some special residuated lattices (such as MTL-algebras, lattice implication algebras, BL-algebras), prime ideal and prime ideal of the second kind are coincide. Secondly, the notions of fuzzy prime ideal and fuzzy prime ideal of the second kind on a residuated lattice are introduced, aiming at the relation between prime ideal and prime ideal of the second kind, we mainly investigated the fuzzy prime ideal of the second kind.
In the knowledge economy, a key source of sustainable competitive advantage relies on the way to create, share, and utilize knowledge. This paper presents an application of the interval type-2 TOPSIS method used to se...
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ISBN:
(纸本)9789814619967
In the knowledge economy, a key source of sustainable competitive advantage relies on the way to create, share, and utilize knowledge. This paper presents an application of the interval type-2 TOPSIS method used to select the most appropriate tool to support knowledge management (KM) activities in a healthcare system. The method provides us with a useful way to handle fuzzy multiple attributes group decision-making problems in a more flexible and more intelligent manner to analyze and compare KM tools in the software market. A case study is given to demonstrate the potential of the methodology.
The correct selection of performance metrics is one of the most key issues in evaluating classifier's performance. Although many performance metrics have been proposed and used in machine learning community, there...
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ISBN:
(纸本)9789814619967
The correct selection of performance metrics is one of the most key issues in evaluating classifier's performance. Although many performance metrics have been proposed and used in machine learning community, there is not any common conclusions among practitioners regarding which metric to choose for evaluating a classifier's performance. In this paper, we attempt to investigate the potential relationship among some common used performance metrics. Based on definitions, We first classify seven most widely performance metrics into three groups, namely threshold metrics, rank metrics, and probability metrics. Then, we focus on using Pearson linear correlation and Spearman rank correlation to investigate the relationship among these metrics. Experimental results show the reasonableness of classifying seven common used metrics into three groups. This can be useful for helping practitioners enhance understanding about the different relationships and grouping's among the performance metrics.
The evaluation of medical imaging devices is a critical issue for both biomedical engineers and health-care investors. This study proposes a new technique to assess common medical imaging devices using type-2 fuzzy mu...
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ISBN:
(纸本)9789814619967
The evaluation of medical imaging devices is a critical issue for both biomedical engineers and health-care investors. This study proposes a new technique to assess common medical imaging devices using type-2 fuzzy multi-criteria decision making approach. The evaluation criteria were characterized by the interviews with the experts. A Gaussian type-2 Fuzzy membership function was assigned for each interval of the evaluation. TOPSIS algorithm was applied to our system using type-2 Fuzzy numbers. The results were classified with the Wu and Mendel's ranking method. The ranking of device alternatives highlighted the accurate order of future imaging technologies with the fuzzy behavior of medical investments in conjunction with the requirements of the clinicians and the engineers.
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