Empirical work on choice models, especially on relatively new topics or data sets, often starts with descriptive, or what is colloquially referred to as “reduced form”, results. Our descriptive form formalizes this process. It is derived from the underlying behavioral model, has an interpretation in terms of fit, and can sometimes be used to quantify biases in agents’ expectations. We consider ...

We study the asymptotic behavior of the Gerber–Shiu expected discounted penalty function in the renewal risk model. Under the assumption that the claim-size distribution has a convolution-equivalent density function, which allows both heavy-tailed and light-tailed cases, we establish some asymptotic formulas for the Gerber–Shiu function with a fairly general penalty function. These formulas bec...

Numerous studies have found that suburban residents drive more and walk less than residents in traditional neighborhoods. What is less well understood is the extent to which the observed patterns of travel behavior can be attributed to the residential built environment itself, as opposed to the prior self-selection of residents into a built environment that is consistent with their predispositi...

Computer offences and crimes against corporate computer systems have increasingly become a major challenge to information security management in the Internet-enabled global economy and society. In this study, we attempt to develop a theoretical model that integrates three main stream criminology theories, i.e., general deterrence, rational choice, and individual propensity. We submit that, whil...

In this paper, we nd all the Lyapunov functions that correspond to the stabilization of the two-dimensional MG model and discuss possible choices of controllers. We also give a complete treatment of the problem of only having positive control action available. For the three-dimensional model, we address the issue of whether the equilibrium point on the compressor characteristic is stabilizable ...

Conceptual modelling is a widely applied practice and has led to a large body of knowledge on constructs that might be used for modelling and on methods that might be useful for modelling. It is commonly accepted that database application development is based on conceptual modelling. It is however surprising that only very few publications have been published on a theory of conceptual modelling...

Business process modelling is an area of work that is increasingly used in conjunction with software development. For example, many development methods note the importance of strategic or business modelling, typically as a prerequisite to analysis. In addition, Systems Engineering for Business Process Change suggests the need to model the business process in maintaining and evolving existing (l...

The search for an online product that matches e-shoppers’ needs and preferences can be frustrating and time-consuming. Browsing large lists arranged in tree-like structures demands focused attention from eshoppers. Keyword search often results in either too many useless items (low precision) or few or none useful ones (low recall). This can cause potential buyers to seek another seller or choos...

This paper is concerned with a SOM-based data mining strategy for adaptive modelling of a slowly-varying process. The aim is to follow the process in a way that makes a representative up-to-date data set of a reasonable size available at any time. The technique developed allows analysis and filtering of redundant data, detection of the need to update the process models and the core-module of th...

Requirement engineering is first phase of information system development process. This phase aims to fully observe and define the needs of system and users. In this phase, the defined needs will be formulated into a form that can simplify the analysis process. Requirement engineering approach with intentional perspective is one of argument which is coming to surface in requirement engineering t...