According to the OT error-driven ranking model of language acquisition, the learner performs a sequence of slight re-rankings triggered by mistakes on the incoming stream of data, until it converges to a ranking that makes no more mistakes. This learning model is very popular in the OT acquisition literature, in particular because it predicts a sequence of rankings that models gradualness in ch...

In this paper we explore the possibility of using a language action perspective to extend an analysis of organizational processes based on role activity diagramming (RAD). We have previously used role activity diagramming to show the large scale communication flows in an organizational domain and wanted to apply a language action approach to arrive at a finer level of detail for particular inte...

Understanding the context, structure, activities, and content of software development processes found in practice has been and remains a challenging problem. In the world of free/open source software development, discovering and understanding what processes are used in particular projects is important in determining how they are similar to or different from those advocated by the software engin...

In recent years ontologies – shared conceptualizations of some domain – are increasingly seen as the key to further automation of information processing. Although many approaches for representing and applying ontologies have already been devised, they haven’t found their way into enterprise applications. In this paper we argue that ontology-based systems lack critical technical features, such a...

We model the immune dynamics between T cells and cancer cells in leukemia patients after a bone-marrow (or a stem-cell) transplant. We use a system of nine delay differential equations that incorporate time delays and account for the progression of cells through different stages. This model is an extension of our earlier model [1]. We conduct a sensitivity analysis of the model parameters with ...

Understanding the business of organizations is a crucial point for developing good information systems supporting the organizations. Different generic business models have been developed based on the language action perspective. There are the models of Action Workflow (Medina-Mora et al, 1992; Denning & Medina-Mora, 1995), DEMO (Dietz, 1999) and BAT (Goldkuhl 1996; 1998). Inspired by these diff...

Free University Amsterdam, Dept. of Mathematics and Computer Science De Boelelaan 1081a, 1081 HV Amsterdam The Netherlands Email: [email protected] Abstract A number of specific aspects of (intelligent) multi-agent domains have not been considered from a conceptual modelling perspective. For example, dealing with changing worlds and simultaneously active agents the resulting interactivity and dyna...

Older adults regularly report rising levels of Subjective Well-Being (SWB) over time, despite a concomitant decline in their health. One possible explanation is that individuals develop psychological mechanisms to diminish the contribution health well-being as they get older. This research examines whether observational data are consistent with this hypothesis hedonic adaptation ageing, all asp...

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Abstract Philosophers, linguists and others interested in problems concerning natural language frequently employ tools from logic and model theory. The question arises as to the proper interpretation of the formal methods employed—of the relations...

Solid-phase epitaxial regrowth for patterned amorphous regions has been known to form device degrading mask-edge defects. Prior studies have shown that orientation dependence of regrowth leads to pinching of the slow regrowing corners !111 fronts" that create these defects #K. L. Saenger et al., J. Appl. Phys. 101, 104908 !2007"$. Also, the effect of n-type and p-type dopants on regrowth is kno...