Current Issue : October - December Volume : 2014 Issue Number : 4 Articles : 4 Articles
This paper aims to model the change in market share of 30 domestic and foreign banks, which have been operating between the\nyears 1990 and 2009 in Turkey by taking into consideration 20 financial ratios of those banks. Due to the fragile structure of the\nbanking sector in Turkey, this study plays an important role for determining the changes in market share of banks and taking the\nnecessary measures promptly. For this reason, computational intelligence methods have been used in the study. According to the\nresearch results, it is seen that it was not able to properly anticipate the data for the banking sector in the periods of financial crises\n(2000-2001 and 2008-2009). However, it is seen that, Simple Linear Regression is distinguished as a good algorithm among the\ncomputational intelligence algorithms for all periods between the years 1990 and 2009....
Dynamically changing environments and threat landscapes require adaptive information security. Adaptive information security\nmakes it possible to change and modify security mechanisms at runtime. Hence, all security decisions are not enforced at designtime.\nThis paper builds a framework to compare security adaptation approaches. The framework contains three viewpoints, that\nis, adaptation, security, and lifecycle. Furthermore, the paper describes five security adaptation approaches and compares them by\nmeans of the framework. The comparison reveals that the existing security adaptation approaches widely cover the information\ngathering. However, the compared approaches do not describe how to decide amethod to performa security adaptation. Similarly,\nmeans how to provide input knowledge for the security adaptation is not covered. Hence, these research areas have to be covered\nin the future. The achieved results are applicable for software developers when selecting a security adaptation approach and for\nresearchers when considering future research items....
We introduce a new model for describing word frequency distributions in documents for automatic text classification tasks. In the\nmodel, the gamma-Poisson probability distribution is used to achieve better text modeling. The framework of the modeling and its\napplication to text categorization are demonstrated with practical techniques for parameter estimation and vector normalization.\nTo investigate the efficiency of our model, text categorization experiments were performed on 20 Newsgroups, Reuters-21578,\nIndustry Sector, and TechTC-100 datasets.The results show that the model allows performance comparable to that of the support\nvector machine and clearly exceeding that of themultinomial model and the Dirichlet-multinomial model.The time complexity of\nthe proposed classifier and its advantage in practical applications are also discussed....
In recent years, based on the rising of global personal safety demand and human resource cost considerations, development of\nunmanned vehicles to replace manpower requirement to perform high-risk operations is increasing. In order to acquire useful\nresources under the marine environment, a large boat as an unmanned surface vehicle (USV) was implemented. The USV is\nequipped with automatic navigation features and a complete substitute artificial manipulation. This USV system for exploring\nthe marine environment has more carrying capacity and that measurement system can also be self-designed through a modular\napproach in accordance with the needs for various types of environmental conditions.The investigationwork becomesmore flexible.\nA catamaran hull is adopted as automatic navigation test with CompactRIO embedded system. Through GPS and direction sensor\nwe not only can know the current location of the boat, but also can calculate the distance with a predetermined position and the\nangle difference immediately. In this paper, the design of automatic navigation is calculated in accordance with improved Elman\nneural network (ENN) algorithms. Takagi-Sugeno-Kang (TSK) fuzzy and improved ENN control are applied to adjust required\npower and steering, which allows the hull to move straight forward to a predetermined target position. The route will be free from\noutside influence and realize automatic navigation purpose....
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