نتایج جستجو برای: e selection
تعداد نتایج: 1319392 فیلتر نتایج به سال:
Evolutionary Algorithms (EAs) are adaptive algorithms based on the Darwinian principle of natural selection. Intuitively, their adaptive nature makes them suitable for highly dynamic environments, which is often the case in ecommerce applications. This chapter presents a review of EAs for e-commerce. It starts by discussing the main characteristics of EAs in general. Then it discusses several E...
E-service evaluation is a complex problem in which many qualitative attributes must be considered. These kinds of attributes make the evaluation process hard and vague. Cost–benefit analyses applied to various areas are usually based on the data under certainty or risk. In case of uncertain, vague, and/or linguistic data, the fuzzy set theory can be used to handle the analysis. In this article,...
Traditional product selection methods – especially for high involvement products like refrigerators, cars and diamonds – use customer specified multi-attributes of the product to select products of interest to the customer. However, such methods tend to generate lot of false positives and false negatives due to conflicting, imprecise and non-commensurable nature of product attributes. In this p...
With the world’s second largest Internet population and a huge potential e-commerce market, China has been witnessing a remarkable growth of online auctions in recent years. However, there are few studies that have investigated the e-auction phenomena in China, and current literature gave little guidance on the design and development of eauction websites. To fill this void, this research compar...
The objective of this research is to develop a science base and integrative technologies for implementing a scalable and secure hub for reverse logistics e-commerce. The proposed system consists of a transactions hub called the Management and Archival (MA) subsystem and a product information database referred to as the Product Design Advisory (PDA) subsystem. In the initial phase of exploratory...
Schema matching, the problem of finding mappings between the attributes of two semantically related database schemas, is an important aspect of many database applications such as schema integration, data warehousing, and electronic commerce. Unfortunately, schema matching remains largely a manual, labor-intensive process. Furthermore, the effort required is typically linear in the number of sch...
In finite populations, an allele disappears or reaches fixation due to two main forces, selection and drift. Selection is generally thought to accelerate the process: a selected mutation will reach fixation faster than a neutral one, and a disadvantageous one will quickly disappear from the population. We show that even in simple diploid populations, this is often not true. Dominance and recess...
In the application domain of electronic commerce, biometric authentication can provide one possible solution for the key management problem. Besides server-based approaches, methods of deriving digital keys directly from biometric measures appear to be advantageous. In this paper, we analyze one of our recently published specific algorithms of this category based on behavioral biometrics of han...
This report deals with procedures for random-size subset selection from k(> 2) given populations where the distribution of ir^(i = l, ..., k) has a density f^(x;0^). Let ••• -®[k] denote unknown values of the parameters, and let ^[i]» ***'ïï[k] denote the corresponding populations. First, we have considered the problem of selection for consider the /s procedure that selects TT. if sup L(0;x) > ...
Bindin, a protein involved in sea urchin sperm-egg recognition and adhesion, is under positive selection in genera with sympatric species but evolves neutrally in genera in which all species are allopatric. This pattern has led to suggestions that reinforcement may be the source of the observed selection. Reproductive character displacement, or increased divergence of reproductive characters in...
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