On the characteristic views of quadric-surfaced solids

2002 ◽  
Author(s):  
Shuang Chen ◽  
H. Freeman
Keyword(s):  
Characteristic Views

A Fast 3-D Visualization Methodology Using Characteristic Views of Objects

1998 ◽  
Vol 08 (01) ◽  
pp. 97-114 ◽  
Author(s):  
Soochan Hwang ◽  
Sang-Young Cho ◽  
Taehyung Wang ◽  
Phillip C.-Y. Sheu
Keyword(s):  
Finite Number ◽  
Real Time ◽  
Time Complexity ◽  
Object Oriented ◽  
Equivalence Classes ◽  
Visualization Method ◽  
Tree Algorithm ◽  
Projected Image ◽  
Characteristic Views ◽  
Run Time

This paper describes a 3-D visualization method based on the concept of characteristic views (CVs). The idea of characteristic views was derived based on the observation that the infinite possible views of a 3-D object can be grouped into a finite number of equivalence classes so that within each class all the views are isomorphic in the sense that they have the same line-junction graphs. To visualize the changes of scenes in real time, the BSP tree algorithm is known to be efficient in a static environment in which the viewpoint can be changed easily. However, if a scene consists of many objects and each object consists of many polygons, the time complexity involved in traversing a BSP tree increases rapidly so that the original BSP tree algorithm may not be efficient. The method proposed in this paper is object-oriented in the sense that, for all viewpoints, at the preprocessing stage the ordering for displaying the objects is determined. At run time, the objects are displayed based on a pre-calculated ordering according to the viewpoint. In addition, a CV is used as a basic 2-D projected image of a 3-D object.

Knowledge Management

2003 ◽  
pp. 68-81
Author(s):  
Petros A.M. Gelepithis ◽  
Nicole Parillon
Keyword(s):  
Knowledge Management ◽  
Great Majority ◽  
Academic World ◽  
Business World ◽  
The Third ◽  
The Core ◽  
Characteristic Views ◽  
Knowledge Market

Although the debate on the nature of ‘knowledge’ and ‘information’ is far from settled, it is now taken for granted throughout the academic world that the two notions are related but fundamentally distinct. This result, and its significant consequences, still need to be realised and understood by the great majority of the business world. In the first section of this chapter, we briefly comment on some characteristic views of ‘knowledge’ and ‘knowledge management,’ and subsequently we analyse in-depth the core constituent notion of the latter, that is, knowledge. In section two, we outline three major consequences of our analysis. The first concerns the limits of management for a certain class of activities involving knowledge. The second concerns the scope and limits of technology for the same class of activities. The third concerns the issue of knowledge market. The thesis we develop is that knowledge cannot be taken as a commodity; in other words, the notion of a knowledge market is not implementable.

Knowledge Management

2011 ◽  
pp. 1480-1490
Author(s):  
Petros A.M. Gelepithis ◽  
Nicole Parillon
Keyword(s):  
Knowledge Management ◽  
Great Majority ◽  
Academic World ◽  
Business World ◽  
The Third ◽  
The Core ◽  
Characteristic Views ◽  
Knowledge Market

Although the debate on the nature of ‘knowledge’ and ‘information’ is far from settled, it is now taken for granted throughout the academic world that the two notions are related but fundamentally distinct. This result, and its significant consequences, still need to be realised and understood by the great majority of the business world. In the first section of this chapter, we briefly comment on some characteristic views of ‘knowledge’ and ‘knowledge management,’ and subsequently we analyse in-depth the core constituent notion of the latter, that is, knowledge. In section two, we outline three major consequences of our analysis. The first concerns the limits of management for a certain class of activities involving knowledge. The second concerns the scope and limits of technology for the same class of activities. The third concerns the issue of knowledge market. The thesis we develop is that knowledge cannot be taken as a commodity; in other words, the notion of a knowledge market is not implementable.

scholarly journals Internal-External Locus of Control and Perception of Authority Figures

1974 ◽  
Vol 34 (3_suppl) ◽  
pp. 1119-1123 ◽  
Author(s):  
Ben Ferguson ◽  
Kevin Kennelly
Keyword(s):  
High School ◽  
High School Students ◽  
Locus Of Control ◽  
External Locus ◽  
School Students ◽  
Present Sample ◽  
Authority Figure ◽  
Authority Figures ◽  
Characteristic Views ◽  
Positive Light

To investigate differences between Internals' and Externals' characteristic views of figures in authority, the Authority Figure Perception Test, a paper-and-pencil test, was constructed (scale reliabilities ranged from .82 to .33) and administered along with Rotter's I-E Scale to 76 male preparatory high school students. As hypothesized, Internals more than Externals perceived figures in authority (a) as more encouraging of constructive environmental manipulations ( r = .36), (b) as more supportive when difficulty is encountered ( r = .41), (c) as more positively reinforcing ( r = .26), (d) as having more predictable standards ( r = .53), (e) as acting more upon issue-oriented reason ( r = .43), and (f) in a generally more positive light ( r = .55; ps < .025, 1-tailed tests). As age increased in the present sample, the tendency to perceive authority figures (a) as positively reinforcing ( r = .25), (b) as having predictable standards ( r = .23), and (c) in a generally positive light ( r = .25) decreased ( ps < .05, 2-tailed tests).

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