As more organizations rely on externally-produced information, an important issue is how to develop conceptual models for such data. Considering the limitations of traditional conceptual modeling, we propose a “lightweight” modeling alternative to traditional “class-based” conceptual modeling as typified by the E-R model. We demonstrate the approach using a real-world crowdsourcing project, NLN...

Feel lonely? What about reading books? Book is one of the greatest friends to accompany while in your lonely time. When you have no friends and activities somewhere and sometimes, reading book can be a great choice. This is not only for spending the time, it will increase the knowledge. Of course the b=benefits to take will relate to what kind of book that you are reading. And now, we will conc...

In this paper, we investigate the growth of solutions and the existence of subnormal solutions for a class of higher order linear differential equations. We obtain some results which improve and extend the results of Chen-Shon [2] and Gundersen-Steinbart [5].

Feel lonely? What about reading books? Book is one of the greatest friends to accompany while in your lonely time. When you have no friends and activities somewhere and sometimes, reading book can be a great choice. This is not only for spending the time, it will increase the knowledge. Of course the b=benefits to take will relate to what kind of book that you are reading. And now, we will conc...

Contributing Authors Xiongwen Chen (China), Jingyun Fang (China), Qiong Gao (China), T. Jarupongsakul (Thailand), R. Khosa (India), A. Lelakin (Russia), N. Mimura (Japan), M.Q. Mirza (Bangladesh), S. Mizina (Kazakhstan), M. Nakagawa (Japan), M. Nakayama (Japan), Jian Ni (China), A. Novoplansky (Israel), W.T. Piver (USA), E. Rankova (Russia), D. Saltz (Israel), K.P. Sharma (Nepal), M.L. Shrestha...

A quantitative structure property relationship study of the flash point of a diverse set of 271 compounds provided a general three-parameter QSPR model (R(2) = 0.9020, R(2)(cv) = 0.8985, s = 16.1). Use of the experimental boiling point as a descriptor gives a three-descriptor equation with R(2) = 0.9529. Use of the boiling point predicted by a four-parameter reported relationship gives a three-...

When modelling a real-world phenomenon, it can often be useful to have multiple descriptions of the phenomenon, each expressed using a different modelling approach or representation. Different representations such as entity-relationship modelling, data flow modelling and use case modelling allow analysts to describe different aspects of real-world phenomena, thus providing a more thorough under...

In this paper, we propose a (max,+)-based method for the supervision of discrete event systems subject to tight time constraints. Systems under consideration are those modelled as timed event graphs and represented with linear (max,+) state equations. The supervision is addressed by looking for solutions of constrained state equations associated with timed event graph models. These constrained ...

The literature suggests that ethical climate may actually contribute to organizational success by enhancing employee performance. Ethical climate is considered to be highly relevant to the hospitality industry, since it enhances service-providers’ contact with customers. This study reinforces previous researches by exploring the relationships between ethical climate, service, and customer satis...