The rising growth of the GSM cellular phone industry has tightening competition level between providers in making strategies enhancing the market shares in Indonesia. Tsel, as one of those companies, has to determine the proper strategy to sustain as well as improve the market share without reducing its operational income level. Portfolio simulation model is designed with a dynamic system appro...

Our previous work addressed the computational analysis of communities of Romanian online users involved in tourism activities and interested in sharing their impressions and experiences, by focusing on touristic content sharing and review sites. Our studies comprise several tasks such as sentiment analysis, keywords extraction and graph-based structuring of the users community. In this paper we...

As the scale and complexity of software products increase, software maintenance on bug resolution has become a challenging work. In the process of software implementation, developers often use bug reports, source code and change history to help solve bugs. However, hundreds of bug reports are being submitted every day. It is time-consuming and effortless for developers to review all the bug rep...

At a time of growing market turbulence and a strong shifts towards increasingly complex risk models and more stringent audit requirements, it is more critical than ever to maintain the highest quality of financial and credit information. IFC implemented an approach that helps increase data integrity and quality significantly. This approach is called “Screening”. Screening is based on linking in...

This study presents an Expert System specially designed to be used with Multiobjective Evolutionary Algorithms (MOEAs) for the solution of the portfolio selection problem. The validation of the proposed hybrid System is done by using data sets from Hang Seng 31 in Hong Kong, DAX 100 in Germany and FTSE 100 in UK. The performance of the proposed system is assessed in comparison with the Non-domi...

Banks as financial intermediaries, can diversify their credit portfolios into different sectors. This study aims to determine the effect of portfolio diversification on risks borne and returns earned by banks. The sample in this was 61 conventional commercial banks Indonesia for 2012-2014 period with a total 112 observations. results show that has significant negative bank risk return. In other...

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...

projects scheduling by the project portfolio selection, something that has its own complexity and its flexibility, can create different composition of the project portfolio. an integer programming model is formulated for the project portfolio selection and scheduling.two heuristic algorithms, genetic algorithm (ga) and simulated annealing (sa), are presented to solve the problem. results of cal...