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Current status data arise when each subject is observed only once and the failure time of interest is only known to be either smaller or larger than the observation time rather than observed exactly. For the situation, due to the use of imperfect diagnostic tests, the failure status could often suffer misclassification or one observes misclassified data, which may result in severely biased estimation...
Aiming at the urgent needs of product's perception design issues, this paper takes mobile phone as the research object and proposes a consumer preference-oriented design method of products' form perception. This paper firstly picks out 11 representative mobile phone pictures by methods of multi-dimensional scaling analysis and cluster analysis. At the same time, 29 image senses words are screened...
Keyword-based search engines often return an unexpected number of results. Zero hits are naturally undesirable, while too many hits are likely to be overwhelming and of low precision. We present an approach for predicting the number of hits for a given set of query terms. Using word frequencies derived from a large corpus, we construct random samples of combinations of these words as search terms...
Taking the videophone for example, this study developed a process and method of product form perception based on customer preferences. This study proposed the process of product form perception evaluation scale which includes 17 appraisal words and 10 representative pictures by questionnaires, multidimensional scaling, and cluster analysis method. Then it established the relationship model between...
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