Pen-based input is the classical approach to drawing. Without computers, using a pen was the natural approach to do drawings, and the simplicity of this “device” always called for similar electronic solutions. Today, a broad range of electronic input devices is available that try to pair the simplicity of input with the power of computing. They come in all sizes: from small touch-screens with s...

In this paper we present a new algorithm for automatic recognition of hand drawn sketches based on the Levenshtein distance. The purpose for drawing sketches in our application is to create graphical user interfaces in a similar manner as the well established paper sketching. The new algorithm is trainable by every user and improves the recognition performance of the techniques which were used ...

Teaching high-school mathematics using a general theorem prover becomes a reachable goal for the near future. In this article, we present a library dealing with geometry in Coq. This library is dedicated to high-school teaching. We stress on using a graphical interface and a drawing tool which ease the accessibility to formal statements. We present some significant examples of statements with f...

In addition to objects and relationships between them, groups or clusters of objects are an essential part of many real-world datasets: party affiliation in political networks, types of living organisms in the tree of life, movie genres in the internet movie database. In recent visualization methods, such group information is conveyed by explicit regions that enclose related elements. However, ...

in the current research, eight available full as well as partial arabic translations of the divan of hafez have been compiled and introduced. the arabic translators’ success in transferring hafiz’s artistic plays and thoughts is investigated and the quality of understanding the poems and the stylistic distinctions of the translations in source and target languages are also dealt with. the artic...

Recent accounts of the role of diagrams in mathematical reasoning take a Platonic line, according to which the proof depends on the similarity between the perceived shape of the diagram and the shape of the abstract object. This approach is unable to explain proofs which share the same diagram in spite of drawing conclusions about different figures. Saccheri’s use of the birectangular isosceles...

The right hemisphere advantage for split-brain patients on a variety of spatial tasks (block design, cube drawing, wire figures, and fragemented stimuli) is found to be highly dependent upon the involvement of manual activities in the perception of spatial relationships or the production of spatial responses. The cerebral localization of the neural substrate of manipulo-spatial functions sugges...

Purpose – Explores the relevance of structuralism and post-structuralism to the field of library and information science (LIS). Design/methodology/approach – The paper is a literature-based conceptual analysis of the two philosophical movements, structuralism and post-structuralism, as represented by the seminal figures of Ferdinand de Saussure and Michel Foucault. Findings – The principles of ...

In 1611, Galileo Galilei created an astonishing series of drawings depicting the Earth’s moon to demonstrate the power of his new invention — the telescope — to his patron, Cosimo de’ Medici1. As a true Renaissance man, Galileo had a degree in drawing from the Accademia delle Arti del Disegno in Florence, as well as a degree in natural philosophy from the University of Pisa. This key connection...