Many techniques for watermarking of digital images have appeared recently. Most of these techniques are sensitive to cropping and/or a ne distortions (e.g., rotation and scaling). In this paper we describe a method for recognizing images based on the concept of identi cation marks; the method does not require the use of the \original" image, but only a small number of salient image points. We s...

During the creation of a software architecture, the architects and stakeholders take a lot of decisions. Many of these decisions can be directly related to functional or quality requirements. Some design decisions, though, are more or less arbitrarily made on the fly because of personal experience, domain knowledge, budget constraints, available expertise, and the like. These decisions, as well...

This paper describes the SDC PUNDIT, (Prolog UNDerstands Integrated Text), system for processing natura l language messages. 1 PUNDIT, written in Prolog, is a highly modular system consisting of distinct syntactic, semantic and pragmatics components. Each component draws on one or more sets of data, including a lexicon, a broad-coverage grammar of EngLish, semantic verb decompositions, rules ma...

Dissipation in the clock tree and state elements of ASIC designs is often a significant fraction of total energy consumption. We propose a methodology for recovering most of this energy by using a novel energy recovering flip-flop and a novel single-phase resonant clock generator. As our state element has near-zero energy consumption when the input data is not switching, it provides the savings...

In incidence calculus inferences are usually made by calculating incidence sets and computing probabilities of formulae based on a given incidence function in an incidence calculus theory Incidence functions are vital for performing any further inference Without the existence of this function many of the features of incidence cal culus will be lost However it is still the case that numerical va...

Sustainable development -the notion that boosting economic growth, protecting natural resources, and ensuring social justice can be complementary goals -has lost much appeal over the past two decades, the victim of woolly thinking and interest-group politics. The concept can be relevant again, but only if its original purpose -helping the poor live healthier lives on their own terms -is restored.