We consider the problem of selecting investment components according to two partially opposed measures: the portfolio performance and its risk. We approach this within Markowitz’s model, considering the case of mutual funds market in Europe until July 2010. Comparisons were made on three multi-objective evolutionary algorithms, namely NSGAII, SPEA2 and IBEA. Two well-known performance measures ...

This research presents an alternative means of calculating vulnerability relations for buildings. Simulation-based fragility curves generated using a Monte Carlo simulation are usually not practical because of the large number of time-consuming analyses needed to obtain reliable statistics of the outcomes. This research implements a response surface metamodel to approximate complex analysis in ...

Assumptions about the dynamic and distributional behavior of risk factors are crucial for the construction of optimal portfolios and for risk assessment. Although asset returns are generally characterized by conditionally varying volatilities and fat tails, the normal distribution with constant variance continues to be the standard framework in portfolio management. Here we propose a practical ...

This paper describes the development of an electronic portfolio retrieval system “PRIUM” (Portfolio Retrieval for Investigating Useful Material) which reflects keyword similarity, and assessment of its retrieving efficiency. 40 elementary school students used PRIUM, and 40 elementary school students used a full text retrieval system during their Information Communication Technology (ICT) educat...

There is no standard definition of an E-Portfolio just as there is no standard E-Portfolio (Madden 2007). E-Portfolios can be described in many ways, such as ‘an archive of material, relating to an individual, held in a digital format’ (Madden 2007, p 5). E-Portfolios have a range of purposes which include personal development planning, showcasing work, reflection and assessment (Stefani et al....

In its Publication 26, Ref.[1] the International Commission on Radiological Protection (ICRP) reviewed the types of harm that might result from radiation exposure at low dose, and gave estimates of the frequency with which the major such effects might occur. For the induction of cancer or of leukaemia, the reviews made by the Commission's Committee on Radiation Effects, and the extensive survey...

Introduction: The portfolio can be seen as a tool for assessmentof a variety of learning activities that differ in content, usage, andassessment. The portfolio not only meets the learner’s educationalneeds but also the political and public reassurance demand thatthe health professional has achieved the required competency ofthe curriculum that allows him or her to practice safely with orwithout...

In this research, performance of portfolios formed by use of grid strategy based on new variables (aggressive, indifference and defensive stocks) presented by Rahnamaye Roodposhti (1388), and traditional ones (growth, growth-value and value stocks), calculated with Sharpe and Treynor performance measures and tested by an Active portfolio management approach to identify the portfolios by perform...

In line with the constructivist view of education, Problem-based Learning (PBL) facilitates active construction of knowledge through engaging with information in the context of meaningful problems or situations, and by using high level learning strategies. Most research in PBL seems to focus on the implementation of PBL as a teaching approach. The role of assessment in enhancing the type of lea...