Evaluating authorship distance methods using the positive Silhouette coefficient

Instance Selection in Text Classification Using the Silhouette Coefficient Measure

The paper proposes the use of the Silhouette Coefficient (SC) as a ranking measure to perform instance selection in text classification. Our selection criterion was to keep instances with mid-range SC values while removing the instances with high and low SC values. We evaluated our hypothesis across three well-known datasets and various machine learning algorithms. The results show that our met...

Mesh Simplification Using Distance Labels for View-Independent Silhouette Preservation

Multiresolution modelling is a good method to achieve both quality and performance in the rendering of complex scenes. Within this framework, the detection and preservation of outstanding features, such us silhouettes, become very important. The goal of this paper is to present a technique based on Distance Transforms that allows to classify the elements of the mesh according to their proximity...

Evaluating the Distance between Posterior Teeth and the Maxillary Sinus Floor Using Cone Beam Computed Tomography

Background and Objectives The topography of the sinus floor and its relationship with maxillary teeth roots varies with age, pneumatization size and grade, positioning of the teeth, and Genetics. This study used cone beam computed tomography (CBCT) to evaluate the distance between posterior teeth and the maxillary sinus floor in patients in Rafsanjan City, Iran. Materials and Methods This de...

Tangential Distance Fields for Mesh Silhouette Analysis

We consider a tangent-space representation of surfaces which maps each point on a surface to the tangent plane of the surface at that point. Such representations are known to facilitate the solution of several visibility problems, in particular, those involving silhouette analysis. In this paper, we introduce a novel class of distance fields for a given surface defined by its tangent planes. At...

Example-Based Methods for Estimating 3D Human Pose from Silhouette Image using Approximate Chamfer Distance and Kernel Subspace