Organizations are increasingly employing business process modelling techniques in an attempt to visualise their processes and highlight the improvements that need to be made. However, despite the plethora of modelling techniques available, the main focus has typically been the graphical depiction of a process. As of yet little consideration has been given into how a process can be presented in ...

We show that the spatial correlation function of a flux-limited sample of Xray selected clusters of galaxies will exhibit a correlation scale that is smaller than the correlation scale of a volume-limited, richness-limited sample of comparable apparent spatial density. The flux-limited sample contains clusters of different richnesses at different distances: poor groups are found nearby and rich...

In this paper we solve the problem of the existence of rational realizations of response maps. Sufficient and necessary conditions for a response map to be realizable by a rational system are presented. We provide also the characterization of the existence of rationally observable and canonical rational realizations for a given response map.

Successful dialogue is based on collaborative efforts of the interactants to ensure mutual understanding. This paper presents work towards making conversational agents ‘attentive speakers’ that continuously attend to the communicative feedback given by their interlocutors and adapt their ongoing and subsequent communicative behaviour to their needs. A comprehensive conceptual and architectural ...

This paper presents a two-stage adaptive robust optimization framework for day-ahead energy and intra-day flexibility self-scheduling of technical virtual power plant (TVPP). The TVPP exploits diverse distributed resources’ (DERs) capabilities in order to offer services wholesale market as well preserving the distribution network's operational constraints presence DER uncertainties. aims at max...

the study focused on the analysis of production and marketing constraints of tomato among rural farmers in talensi nabdam district of upper east region of ghana.a total of 100 respondents were interviewed using questionnaire. data was analyzed using descriptive statistics to describe the socio economic characteristics of the farmers and kendall’s coefficient of concordance was used to rank the ...

In the paper conceptual and physical realisation of a railway demonstrator model is presented. The main purpose of its design is a validation of different control algorithms specified by different project groups in real operating conditions. Conceptual tasks of the realisation are the specification of the target operational behaviour and the derivation of functional structure of the railway mod...

We consider a linear mixed-effects model where Yk,j = αk+βktj+εk,j is the observed value for individual k at time tj , k = 1, . . . , N , j = 1, . . . , J . The random effects αk, βk are independent identically distributed random variables with unknown densities fα and fβ and are independent of the noise. We develop nonparametric estimators of these two densities, which involve a cutoff paramet...

For notational convenience, we often omit any reference to the sample space, Ω. However, we still systematically distinguish a random variable from one of its realizations, by using upper cases for the former and lower cases, for the latter. A realization from a random variable is also referred to as an observed value. Note that this upper/lower case convention is not respected by Weisberg, in ...