E learning is perhaps the most effective way to teach. One example is the scoring procedure used for exams in some decision analysis programs. Under this grading scheme, students take a multiple-choice exam, but rather than simply marking which answer they think is correct, they must assign a probability to each possible answer. The exam is then scored with a special scoring rule, under which s...

In this paper we study how to support similarity queries in peer-to-peer (P2P) systems. Such queries ask for the most relevant objects in a P2P network, where the relevance is based on a predefined similarity function; the user is interested in obtaining objects with the highest relevance. Retrieving all objects and computing the exact answer over a large-scale network is impractical. We propos...

This research aims to develop a model for identifying predictive variables for the selection of the best quality answer in a question-answering (QA) system. It was found that accuracy, completeness and relevance are strong predictors of the quality of the answer.

identification of the best vegetation indices (vis) for use in quantitative analyzes of vegetation is one of the important issues for ecologists. the objective of this study was sensitivity evaluation of vegetation indices to a stand volume for identification of the best vegetation index (vi) in stand volume estimation using a statistical sensitivity method. also, another objective of this stud...

in this article, by using chebyshev’s polynomials and chebyshev’s expansion, we obtain the best uniform polynomial approximation out of p2n to a class of rational functions of the form (ax2+c)-1 on any non symmetric interval [d,e]. using the obtained approximation, we provide the best uniform polynomial approximation to a class of rational functions of the form (ax2+bx+c)-1 for both cases b2-4a...

OBJECTIVE This is the third in a series of sequential "Tutorials in Clinical Research." The objectives of this specific report are to enable the reader to rapidly dissect a clinical question or article to efficiently determine what critical mass of information is required to answer the question and what study design is likely to produce the answer. STUDY DESIGN Tutorial. METHODS The authors...

This paper describes a best answer estimation system called ASURA. The features of ASURA were decided on the basis of the results of experiments that were conducted to determine how people estimated which of a given set of answers was the best. There are two ASURA models, ASURA-1, which has 5 features, and ASURA-2, that has thirteen features. We outline ASURA-1 and ASURA-2 in this paper, and we...

One of the intriguing problems in Community-based Question Answering (CQA) research is the automatic identification of the best answer, which is expected to benefit various stakeholders. First of all, since several answers are provided for each question, the readers of these websites will be able to process the candidate answers more efficiently and mitigate the “information overload” phenomeno...

In UK medical schools, five-option single-best answer (SBA) questions are the most widely accepted format of summative knowledge assessment. However, writing SBA questions with four effective incorrect options is difficult and time consuming, and consequently, many SBAs contain a high frequency of implausible distractors. Previous research has suggested that fewer than five-options could hence ...