Local computation in join trees or acyclic hypertrees has been shown to be linked to a particular algebraic structure, called valuation algebra. There are many models of this algebraic structure ranging from probability theory to numerical analysis, relational databases and various classical and non-classical logics. It turns out that many interesting models of valuation algebras may be derived...

Valuation algebras are known to present a common roof over various applications out of different domains of research. In combination with the power of local computation it offers a possibility to solve inference problems in an efficient way. Implementing concretely these concepts by instantiating a valuation algebra means loosing the high level of abstraction. This paper presents a generic real...

To make a decision, a system must assign value to each of its available choices. In the human brain, one approach to studying valuation has used rewarding stimuli to map out brain responses by varying the dimension or importance of the rewards. However, theoretical models have taught us that value computations are complex, and so reward probes alone can give only partial information about neura...

Let R be a pseudo-valuation domain with associated valuation domain V and I a nonzero proper ideal of R. Let R̂ (resp., V̂ ) be the I-adic (resp., IV -adic) completion of R (resp., V ). We show that R̂ is a pseudo-valuation domain (which may be a field); and that if I 6= I2, then V̂ is the associated valuation domain of R̂. Let R be an SFT globalized pseudo-valuation domain with associated Prüfer do...

In this paper, an analogy between IT firm valuation and IS valuation is used to learn from how investment banking professionals cope with the renowned valuation problem. It becomes clear that theoretically sound approaches like the discounted cash flow might be inappropriate to determine the true value of a software company. Especially for IT valuation, real options approaches are a promising w...

Consequently, in equilibrium, if a consumer with valuation v0 buys and patches the software, then every consumer with valuation v > v0 will also buy and patch, and hence there exists a vp ∈ 0 1 such that a consumer with valuation v ∈ will buy and patch if and only if v≥ vp, in which case ∗ v = B P . We next consider the buying decision in the second period. If a consumer with valuation v decide...

Valuations were introduced in De Bruyn andVandecasteele (Valuations of near polygons, preprint, 2004) as a very important tool for classifying near polygons. In the present paperwe study valuations of dual polar spaces.Wewill introduce the class of theSDPS-valuations and characterize these valuations. We will show that a valuation of a finite thick dual polar space is the extension of an SDPS-v...

Miller and Modigliani (1961) consider valuation of innnite horizon rms that may not engage in purchasing their own shares. While their fundamental valuation approach applies also to rms that purchase their own shares, their stream of dividends approach does not. The latter approach is modiied so that it can be used for valuation of innnite horizon rms including those which may purchase their ow...

he water framework directive of the european union has become a milestone in the water policy for this area. this directive aims to achieve a “good ecological status” of bodies of water in the member states of the european union by 2015. the water framework directive calls for the application of economic principles, economic approaches, tools and instruments. the functions of this economic anal...