The large amount of available multimedia information (e.g. videos, audio, images) requires eecient and eeec-tive annotation and retrieval methods. As videos start playing a more important role in the frame of multimedia, we want to make these available for content-based retrieval. The ImageMiner-System, which was developed at the University of Bremen in the AI group, is designed for content-bas...

By an ortho-radial drawing of a graph we mean a planar drawing on concentric circles such that each edge is an alternating sequence of circular and radial segments, where a circular segment is a part of a circle and a radial segment is a part of a half-line starting at the center of the circles. Ortho-radial drawings are topologically an extension of orthogonal drawings to drawings on a cylinde...

To analyze the consequences of new technologies, which make it possible to employ distant labour, we model a developed country with high and medium-skilled labour interacting with an emerging market economy (EME) with medium and low-skilled labour. Expansion in labour supply induces medium-skill biased technical change, which raises the demand for such labour. As a result, inequalities tend to ...

One afternoon in the fall of 1949, I was sitting at my desk in the Manville, New Jersey, building products plant of the Johns Manville Corporation, where I worked as a financial analyst studying the financial and business aspects of various manufacturing operations at the plant, when the phone rang. It was a person named Harry B. Wissman calling from Arthur D. Little, Inc., in Cambridge, Massac...

Sketching, i.e., drawing diagrams by hand and directly on the screen, is gaining popularity, as it is a comfortable and natural way to create and edit diagrams. Hand drawing is inherently imprecise, and often sloppy. As a consequence, when processing hand drawn diagrams with a computer, ambiguities arise: it is not always clear what part of the drawing is meant to represent what component. Reso...

We propose a solution for the dimensioning of parametric and procedural models. Dimensioning has long been a staple of technical drawings, and we present the first solution for interactive dimensioning: a dimension line positioning system that adapts to the view direction, given behavioral properties. After proposing a set of design principles for interactive dimensioning, we describe our solut...

In this paper we discuss different approaches to generate cutaway illustrations. The purpose of such a drawing is to allow the viewer to have a look into an otherwise solid opaque object. Traditional methods to draw these kinds of illustrations are evaluated to extract a small and effective set of rules for a computer-based rendering of cutaway illustrations. We show that our approaches are not...

The paper presents the part of research for determining the link between technical knowledge of Lithuanian youth and their independence in performing jobs connected with engineering. It has also been attempted to trace whether exists any difference in this respect between the groups of boys and girls. For the research sample, young people from secondary and adult secondary schools, vocational s...

The purpose of this study was to gain insights into the student’s perception on the usage of technical appliances in online learning. The study was conducted in the Universiti Sains Malaysia (USM) based on the sample of 1084 distance learners with the experiences of using the E-learning Portal in their distance education academic programme courses. The students were surveyed on the participatio...

Let G = (V,E) be a planar graph. An arrangement of circular arcs is called a composite arc-drawing of G, if its 1-skeleton is isomorphic to G. Similarly, a composite segment-drawing is described by an arrangement of straight-line segments. We ask for the smallest possible ground set of arcs/segments for a composite arc/segment-drawing. We present algorithms for constructing composite arc-drawin...