For efficiency evaluation of some of the Decision Making Units that have uncertain information, Rough Data Envelopment Analysis technique is used, which is derived from rough set theorem and Data Envelopment Analysis (DEA). In some situations rough data alter nonradially. To this end, this paper proposes additive rough–DEA model and illustrates the proposed model by a numerical example.

Contact relation algebras (CRAs), introduced in Düntsch et al. (1999), arise from the study of “part–of” and “contact” relations rooted in mereology and have applications, for example, in qualitative spatial reasoning. We give an overview of the origins of CRAs and numerous examples.

I argue that mereological nihilism fails because it cannot answer (what I describe as) the special arrangement question: when is it true that the xs (the mereological simples) are arranged F-wise? I suggest that the answers given in the literature fail and that the obvious responses that could be made look to undermine the motivations for adopting nihilism in the first place.

to electrostatics and magnetism during the second half of the eighteenth century, accompanied by the increasing employment of sophisticated instruments. Even within such a dense account of early modern physics, Heilbron manages to include an extensive examination of the "boundary conditions" (my term, not his) on the scientific activity he explores: the social, financial, educational, and insti...

The paper outlines a formal ontology of texts. The main ontological distinction I try to capture is the difference between tokens of texts (physical texts) and texts (abstract texts) themselves. The latter are understood here as ontologically dependent on the former in the sense spelled out by the axioms of the ontology. I formally characterise both types by means of their criteria of identity ...

We develop a formal theory of mereology that includes relations that change over time. We show how this theory formalizes reasoning over domains of material objects, which include not only integral objects (my computer, your liver) but also portions of stuff (the water in your glass, the blood in a vial). In particular, we use different mereological summation relations to distinguish between th...

We address an argument by Floridi (2009, 2011), to the effect that digital and analogue are not features of reality, only of modes of presentation of reality. One can therefore have an informational ontology, like Floridi’s Informational Structural Realism, without commitment to a supposedly digital or analogue world. After introducing the topic in Section 1, in Section 2 we explain what the pr...

Rough data envelopment analysis (RDEA) evaluates the performance of the decision making units (DMUs) under rough uncertainty assumption. In this paper, new discussion regarding RDEA is extended. The RSBM model is proposed by integrating SBM model and rough set theory. The process of reaching solution is presented and this model is applied to efficiency evaluation of the DMUs with uncertain ...

Abstract In this article, I discuss parthood status in mereologically interpreted Daoist metaphysics, based on the Daodejing . depart from dao and you interrelation, which overlap by sharing parts. consider case of a complete overlap, (a) challenges proper parthood, according to part cannot be identical with whole that it composes, (b) entails question identity that, while complying classical m...