Reasoning about temporal information is an important task in many areas of Artiicial Intelligence. In this paper we address the problem of scal-ability in temporal reasoning by providing a collection of new algorithms for eeciently managing large sets of qualitative temporal relations. We focus on the class of relations forming the Point Algebra (PA-relations) and on a major extension to includ...

Stochastic differential equations have a built-in direction of time flow since future increments in the driving process are assumed independent of present and past values of the process defined by the solution of the equation. The differential equations are thought of as evolving forward in time, normally from some fixed initial time, and the integral representation of a solution, involving as ...

This paper presents the recent developments dealing with our metrical score representation format and how it can be used to produce and manipulate musical scores in PWGL. The base of these ideas is a special score format, called ENP-Score-notation, that allows to describe in textual form various score elements like beats, measures, voices and parts. This basic format can be extended using keywo...

Temporal Action Logic is a well established logical formalism for reasoning about action and change using an explicit time representation that makes it suitable for applications that involve complex temporal reasoning. We take advantage of constraint satisfaction technology to facilitate such reasoning through temporal constraint networks. Extensions are introduced that make generation of actio...

Readily available information is a crucial basis for making decisions, solving problems, or performing knowledge intensive work. Providing such information meeting the needs of a user has to be based on an accurate, purpose-oriented and up-to-date representation of the demand in question. The paper is devoted to a study of different context-based models of user demand. The selected approaches f...

Temporal metadata are significant for the management of cultural collections since every object has a historical reference. The goal of this paper is to enrich collectionlevel descriptions with time representation and management capabilities. We obtain this by deploying a formalism called Multidimensional RDF, which enables the RDF model to represent in a compact way multiple facets of informat...

We are working on a story-telling web tool for primary-school classes. The tool should allow teachers to create or modify short stories, and elaborate temporal reasoning games that stimulate children to reason on the time dimension of stories. In this paper, we review the major theories and tools for qualitative temporal reasoning, studying two facets of time, relevant for such a tool: represen...

Excitement or arousal is one of the main emotional dimensions that affects our lives on a daily basis. We win a tennis match, watch a great movie, get into an argument with a colleague—all of these are instances when most of us experience excitement, yet we do not pay much attention to it. Today, there are few systems that capture our excitement levels and even fewer that actually promote aware...