The Recommendation Method for Hotel Selection Under Traveller Preference Characteristics: A Cloud-Based Multi-Criteria Group Decision Support Model

Group Decision and Negotiation - The research provides a multi-criteria group decision support model for hotel selection according to traveller preference characteristics. Specifically, the study...     

Experimental Strategies for Preference Information Acquisition: A Lattice Path Treatment

This paper investigates strategies for the acquisition of consumer preference information by a market researcher. Such preference information is obtained by the market researcher through an experimental process that entails polling consumers about their preference profiles with a view to completely specifying the preference order. In this paper, we limit the focus to one or two consumers.In this environment, the experiments are pairwise comparisons between resource bundles about which there is no a-priori preference information. Each such experiment can have three possible signals: one bundle is more preferred, indifferent, or less preferred over another. Choice of an experiment in the experimental sequence is important because different choices result in different average amounts of information.For the analysis the paper establishes a link between preference theory and lattice path counting. Combinatorial arguments that allow the market researcher to calculate quantities of information at the start of the information acquisition process are presented. A recursion for finding the impact of choosing different experiments on the average values of information gain is constructed. The paper studies how the experiments chosen subsequently can affect the elimination of other experiments from the experimental set and thus have an effect on the efficiency of information acquisition. The measures derived could be used by the market researcher as a benchmark with which to compare information gathering strategies.     

A Software Implementation of Kimbrough's Disquotation Theory for Representing and Enforcing Electronic Commerce Contracts

Kimbrough's Disquotation Theory, a formal theory about sentences that embed propositional content, expounds the fulfillment and violation conditions for speech acts such as asserting, permitting, and obliging. This paper aims to show how the theory can be profitably applied to the creation of computational environments for monitoring and enforcing electronic commerce contracts using pervasive, mainstream industrial technologies such as Java and relational databases. We examine the notion of an occurrence and provide a structural representation of this abstraction. We show how contractual provisions – obligations, permissions, prohibitions, and powers – can be stored, monitored, and enforced. A query overlap determination mechanism is applied to the problem of monitoring occurrences and analyzing contractual provisions for conflicts. The work presented here demonstrates that, with certain alterations, Kimbrough's theory presents a promising means of storing interrogable and executable specifications for e-commerce workflow applications.     

一种航空自组网GRID路由协议栅格长度划分方法

分析了航空自组网GRID路由协议的特点,在对GRID路由协议中栅格长度、节点有效辐射半径以及节点通信功率联合研究的基础上,通过理论分析和数学推导,得出栅格长度、节点有效辐射半径在一定通信功率条件下的定量关系,为GRID路由协议中栅格长度的划分提供了一种新的思路和科学的划分方法,对GRID路由协议在今后航空自组网中的研究设计具备一定的实用价值。     

A Practical Procedure for Group Decision Making under Incomplete Multiplicative Linguistic Preference Relations

The aim of this paper is to investigate a group decision making problem with incomplete multiplicative linguistic preference relations. We first define the concept of an incomplete multiplicative linguistic preference relation, and then develop a simple algorithm to extend each incomplete multiplicative linguistic preference relation to a complete multiplicative linguistic preference relation. Finally, we develop a practical procedure for group decision making under incomplete multiplicative linguistic preference relations, and give a numerical example to illustrate the developed procedure.     

A Comparative Assessment of Consumer and Non-Consumer Preference for Beef Cuts Consumption in Malaysia

Malaysia is currently enjoying an economic revival, resulting in a rising per capita income and an increasing urban population. There are consumers whose taste buds have become more accustomed to international cuisines, including meaty Western food, to satisfy their quest for diversity in their new lifestyles. This group of consumers in Malaysia plays an important role in shaping the rising trend in the consumption of meat products, and this changing attitude calls for empirical research to clarify factors shaping it. The results also indicate that there are three factors (attributes of beef cuts, quality and safety, and the variety of Malaysian dishes) that greatly influence the preference for beef consumers toward their consumption of beef cuts. It was also determined that four factors that influenced the preference for non-beef consumers are price of beef cuts, lifestyle, risk associated with beef cuts consumption, taste, and preferences influencing non-beef consumers.     

Consumption-Leisure Preference Structure: A New Explanation of the Evans-Jovanovic Results for Entrepreneurial Choice

This paper extends Evans and Jovanovics (1989) (EJ) model to explicitly consider the latent entrepreneurs consumption-leisure preference structure, and shows that an increase in his or her assets encourages entrepreneurial activity. This result indicates that EJs finding may hold without the assumption of liquidity constraints.     

Consumption-Leisure Preference Structure: A New Explanation of the Evans-Jovanovic Results for Entrepreneurial Choice

This paper extends Evans and Jovanovic’s (1989) (EJ) model to explicitly consider the latent entrepreneur’s consumption-leisure preference structure, and shows that an increase in his or her assets encourages entrepreneurial activity. This result indicates that EJ’s finding may hold without the assumption of liquidity constraints.     

Floating Maximally Many Boats: A Preference for the Broad Distribution of Market Benefits

Market economics can overreach and reduce all human activities to market-governed activities. More than a market-inspired explanation for human activities, it offers a normative account of how all goods and services should be distributed by private parties negotiating mutually agreeable terms. This paper argues that market values and practices are constrained by other fundamental values and practices. Liberal values are generally consistent with, though they are not reducible to, market values. Democratic and egalitarian values often contrast with market values. The distribution of market benefits should accommodate those democratic and egalitarian values which constitute a polity's core commitments (and those core commitments need to be reasserted regularly). Indeed, market stability depends upon a general distribution of its benefits. Incentives to productive activity entail inequalities, but the terms of those inequalities are subject to review. Internal refinements to specific markets can reduce inequalities by promoting the fairness of market operations and by increasing the number of effective participants.     

A Consensus Based Method for Multi-criteria Group Decision Making Under Uncertain Linguistic Setting

A two-stage (a consensus process and a selection process) approach is proposed to solve multi-criteria group decision making problems under an uncertain linguistic environment. Since achieving general consensus is a desirable goal in group decision making, the proposed method first develops a consensus reaching process in order to reach a satisfactory consensus. Based on the partial order of uncertain linguistic variables, the superiority index of one alternative over another for a given criterion and the overall superiority index of one alternative are defined. Then a procedure based on the superiority indices is described to select the best alternative(s). Given the decision makers’ desire for a consensus solution, a common framework based on the previous consensus model and the selection process is presented. Finally, a practical application is demonstrated to show the effectiveness of the proposed method.     

一种准静态平坦衰落信道下空时编码设计的新方法

空时码在准静态平坦瑞利衰落信道下的设计准则被广泛采用的是秩准则和行列式准则,但这些准则并不是很紧的。为此,提出了准静态平坦瑞利衰落信道下一种新的更紧的设计准则,采用这种准则还大大降低了穷举搜索空时好码的复杂度,仿真结果表明,搜索得到的空时好码性能优于现有的其它好码。     

一种利用约束Viterbi算法改进IS95协议信道编码的方法

IS95具有两个速率集,在同一个速率集中,不同的速率其数据帧的长度不同,为了使进入正交调制的数据帧的长度相同,其采用了信号重复器.信号重复器进行简单的重复作用,使得带宽不能充分利用.文中提出的方法利用一个信号发生器,产生已知的信号进入卷积编码,卷积编码后的数据帧长度同样符合要求,而信号发生器产生的已知信号在译码端可以作为译码时的约束条件进行约束Viterbi译码.在BSC信道模型的仿真结果证明,其在较高误码率的情况下具有较好的性能.     

A Voting Mechanism Designed for Talent Shows in Mass Media: Weighted Preference of Group Decision Makers in Social Networks Using Fuzzy Measures and Choquet Integral

As the development of social networks tends to shape people’s view about choices, decision making theories are challenged by numerous unprecedented difficulties, from both the theories and practice. One hot topic is how to design a voting mechanism for talent shows in mass media that not only attracts public attention but also reflects an objective and fair principle. Weighted voting, where the voting power of a representative is proportional to the population in his or her district, has been widely adopted in legislative selections and talent show competitions. However, weighted voting system may cause disenfranchisement of some representatives and reduce the entertainment and interest of talent shows because of the ignorance of complex interactions among the representatives. In this paper, possible interactions among representatives are analyzed by investigating the associated social networks and subsequently some fuzzy measures are utilized to quantify these interactions. Specifically, the weights determination model is adopted in this situation for defining fuzzy measures to avoid the disenfranchisement, and a multiple-group hierarchy decision model is developed to solve social network group decision making problems where the Choquet integral is employed to reduce the impact from synergy and redundancy between representatives. Moreover, a voting mechanism for talent shows in mass media is provided. Finally, an illustrative example, and a close look at the current algorithmic issues and future trends from different angles are provided.