14240267
Multimedia-Based Interactive Advising Technology for Online Consumer Decision Support
This paper proposes a new method for online consumer decision support: Multimedia-based Interactive Advising (MIA). The method is based on current internet technologies, particularly multimedia, intelligent agent and advising technology. The discussion of the benefits and design of MIA will illuminate particular areas of research and development, with the goal of improving consumers’ choices in e-commerce environments.
13974173
An empirical investigation of intelligent agents for e-business customer relationship management: a knowledge management perspective
Izak Benbasat MIS Division, Faculty of Commerce and Business Admin. University of British Columbia 2053 Main Mall, Vancouver, BC, V6T1Z2, Canada Phone: (604)822-8396, Fax: (604)822-0045 Email: benbasat@commerce.ubc.ca Abstract: Using a knowledge management perspective, this paper investigates new and efficient ways of applying intelligent agents to e-business customer relationship management. Intelligent agents, as well as knowledge-based systems or expert systems, as a branch of applied artificial intelligence not only predate the recent surge of interest in knowledge management, but also stand out as a well-established means for implementing certain aspects of knowledge management. Intelligent agent technologies make it easier to codify, store, share, and transfer certain kinds of knowledge. Based on the IS literature on explanations and decisional guidance for knowledge-based systems, this paper argues that transferring appropriate knowledge from an organization’s staff to its partners and customers can facilitate efficient customer relationship management (e.g., improving customer trust). It is suggested that three types of knowledge – “How Explanations”, “Why Explanations”, and “Decisional Guidance” – be embedded in intelligent agents, and transferred to the agent’s users. A laboratory experiment is proposed to test if, in which aspects, and to what extent these types of knowledge will increase customer trust.
1177051
Visualization assisted detection of sybil attacks in wireless networks
In wireless networks,the authenticity and uniqueness of node identities are essential to the fundamental operations such as routing, resource allocation, and intrusion detection. In this paper, we investigate Sybil attack, an attack in which a malicious node illegitimately acquires multiple identities and performs as these nodes simultaneously. We propose an effective approach to monitoring and detecting such attacks by integrating network security and visualization methods. The security component explores the time-varying network topology and its statistical and geometry information to detect the existence of Sybil attacks. The visualization component incorporates the detection results and provides an effective mechanism to illustrate abnormal topology patterns and locate fake identities. These two components are integrated into a practical system that takes advantage of both interactive visualization and intelligent security methods. Experimental studies are conducted to investigate the impacts of the network parameters such as node connectivity on the detection capability of the proposed mechanism.
14446380
OP-cluster: clustering by tendency in high dimensional space
Clustering is the process of grouping a set of objects into classes of similar objects. Because of unknownness of the hidden patterns in the data sets, the definition of similarity is very subtle. Until recently, similarity measures are typically based on distances, e.g Euclidean distance and cosine distance. We propose a flexible yet powerful clustering model, namely OP-cluster (Order Preserving Cluster). Under this new model, two objects are similar on a subset of dimensions if the values of these two objects induce the same relative order of those dimensions. Such a cluster might arise when the expression levels of (coregulated) genes can rise or fall synchronously in response to a sequence of environment stimuli. Hence, discovery of OP-Cluster is essential in revealing significant gene regulatory networks. A deterministic algorithm is designed and implemented to discover all the significant OP-Clusters. A set of extensive experiments has been done on several real biological data sets to demonstrate its effectiveness and efficiency in detecting coregulated patterns.
68223
Off-line Chinese signature verification based on support vector machines
This paper proposes a novel off-line Chinese signature verification method based on support vector machines. The method uses both static features and dynamic features. The static features include moment features and 16-direction distribution (an improvement on 4-direction distribution). The dynamic features include gray distribution and stroke width distribution. At last, support vector machine is used to classify the signatures. The main steps of constructing a signature verification system are discussed and experiments on real data sets show that the average error rate can reach 5%, which is obviously satisfactory. w that the average error rate can reach 5%, which is obviously satisfactory.
11609470
Interpolating Polyhedral Models Using Intrinsic Shape Parameters
Metamorphosis, or morphing, is the gradual transformation of one shape into another. It generally consists of two subproblems: the correspondence problem and the interpolation problem. This paper presents a solution to the interpolation problem of transforming one polyhedral model into another. It is an extension of the intrinsic shape interpolation scheme (T. W. Sederberg, P. Gao, G. Wang and H. Mu, ‘2-D shape blending: an intrinsic solution to the vertex path problem, SIGGRAPH ’93, pp. 15–18.) for 2D polygons. Rather than considering a polyhedron as a set of independent points or faces, our solution treats a polyhedron as a graph representing the interrelations between faces. Intrinsic shape parameters, such as dihedral angles and edge lengths that interrelate the vertices and faces in the two graphs, are used for interpolation. This approach produces more satisfactory results than the linear or cubic curve paths would, and is translation and rotation invariant.  1997 by John Wiley & Sons, Ltd.
62579240
A Selective Rendering Method for Data Visualization
Author(s): Wang, Wencheng; Wu, En-Hua; Max, Nelson | Abstract: Selective visualization is a solution for visualizing data of large size and dimensionality. In this paper a new method is proposed for effectively rendering certain chosen parts among the full set of data in terms of a colour buffer, referred to as the virtual plane, for storing intermediate results. By this method, scientists may concentrate their attention on the contents of data in which they are interested. Besides, the method could be easily integrated with all the current direct volume rendering techniques, especially progressive refinement methods and selective methods.