In this paper, we present continuous research on data analysis based on our previous work on the shrinking approach. Shrinking[2] is a novel data preprocessing technique which optimizes the inner structure of data inspired by the Newton’s Universal Law of Gravitation[1] in the real world. It can be applied in many data mining fields. Following our previous work on the shrinking method for multi...

Coordination is critical in distributed collaborative analysis of multidimensional data. Collaborating analysts need to understand what each person has done and what avenues of analysis remain uninvestigated in order to effectively coordinate their efforts. Although visualization history has the potential to communicate such information, common history representations typically show sequential ...

Knowledge has become one of the most valuable assetsfora company and has an important contribution in the tight competition. One of the companies that has been implementing knowledge management system as one of the aspects of its managerial practice is XYZ Inc. In implementing knowledge management system, XYZ Inc needs to evaluate knowledge management alongside to know the value and benefits ge...

People have an essential role in the systems construction; especially when speaking about quality. For that reason, models studying the quality of people involved in the system development process are necessary; however, frequently, this dimension is not considered. In consequence, the proposal of a quality model that includes the Human Perspective is justified. This article describes the struc...

Any finite, separately convex, positively homogeneous function on R is convex. This was first established in [1]. In this paper, we give a new and concise proof of this result, and we show that it fails in higher dimension. The key of the new proof is the notion of perspective of a convex function f , namely, the function (x, y) → yf(x/y), y > 0. In recent works [9, 10, 11], the perspective has...

* 0-7803-7952-7/03/$17.00  2003 IEEE. Abstract Multi-dimension Workflow net (MWF-net) [1], which includes process, organization, and resource perspectives, is introduced. Using the structure analysis of the TWF-net in the process perspective and the perspectives mapping, the routing of transaction instances in the multi-TWF-nets can be projected into the flow of transaction instance between di...

background: malocclusion, as a worldwide issue, can cause a lot of problems for patients. panoramic (pr) and lateral cephalometric (lcr) radiographs are both usually indicated for orthodontic treatments. the aim of this study was to analyze vertical and sagittal parameters of both jaws on prs and to compare them on lcrs. materials and methods: in this cross sectional study, 61 samples from all ...

let r be a right gf-closed ring with finite left and right gorenstein global dimension. we prove that if i is an ideal of r such that r/i is a semi-simple ring, then the gorensntein flat dimensnion of r/i as a right r-module and the gorensntein injective dimensnnion of r/i as a left r-module are identical. in particular, we show that for a simple module s over a commutative gorensntein ring r, ...