Auctions are a fundamental mechanism to automate negotiations in electronic commerce. We consider a class of multi-lateral negotiation situations, which requires negotiation on multiple attributes of a deal. These situations are typical for corporate procurement. Current auction implementations do not support these negotiations adequately. In the paper we propose multi-attribute auctions, an ec...

many of the so-called organizational strategies on which companies are dependent, are not endurable. these strategies may not be well structured and cannot stand the test of time. thus, making the right decision is extremely important for strategic planning. the proposed strategy formulation framework in this paper (fuzzy bsq) is a powerful management tool in strategic planning that integrates ...

Removing redundant information in databases is a key issue in Formal Concept Analysis. This paper introduces several results on the attributes that generate the meet-irreducible elements of a multi-adjoint concept lattice, in order to provide different properties of the reducts in this framework. Moreover, the reducts of particular multi-adjoint concept lattices have been computed in different ...

An attribute grammar is simple multi-visit if each attribute of a nonterminal has a fixed visit-number associated with it such that, during attribute evaluation, the attributes of a node which have visit-number j are computed at the jth visit to the node. An attribute grammar is Iordered if for each nonterminal a linear order of its attributes exists such that the attributes of a node can alway...

In order to improve the quality and productivity the present study highlights the optimization of CNC end milling process parameters to provide a good surface finish. Surface finish has been identified as one of the main quality attributes and is directly related to the productivity of a machine. In this paper an attempt has been made to optimize the process such that the best surface roughness...

Petro physics, rock physics and multi-attribute analysis have been employed in an integrated approach to delineate porosity variation across Tamag Field of Niger Delta Basin. Gamma and resistivity logs were employed to identify sand bodies and correlated across the field. Petro physical analysis was undertaken. Rock physics modelling and multi-attribute analysis were carried out. Two hydrocarbo...

We present a set of interactive techniques for the visual analysis of multi-dimensional categorical data. Our approach is based on multiple correspondence analysis (MCA), which allows one to analyse relationships, patterns, trends and outliers among dependent categorical variables. We use MCA as a dimensionality reduction technique to project both observations and their attributes in the same 2...

We use computational tools to study assortativity patterns in multi-dimensional inter-organizational networks on the basis of different node attributes. In the case study of an inter-organizational network in the humanitarian relief sector, we consider not only macro-level topological patterns, but also assortativity on the basis of micro-level organizational attributes. Unlike assortative soci...