Status of Water Resource Systems Analysis

Particle Swarm Optimization for Hydraulic Analysis of Water Distribution Systems

The analysis of flow in water-distribution networks with several pumps by the Content Model may be turned into a non-convex optimization uncertain problem with multiple solutions. Newton-based methods such as GGA are not able to capture a global optimum in these situations. On the other hand, evolutionary methods designed to use the population of individuals may find a global solution even for ...

Water Resource Applications of Geographic Information Systems

Comparison of generic simulation models for water resource systems

Particularly in water resource systems that frequently experience severe drought events, generic simulation models provide useful information for the definition of drought mitigation measures. Among them, AQUATOOL (Valencia Polytechnic University), MODSIM (Colorado State University), RIBASIM (DELTARES), WARGI-SIM (University of Cagliari) and WEAP (Stockholm Environmental Institute) are here con...

An ontology for component-based models of water resource systems

[1] Component-based modeling is an approach for simulating water resource systems where a model is composed of a set of components, each with a defined modeling objective, interlinked through data exchanges. Component-based modeling frameworks are used within the hydrologic, atmospheric, and earth surface dynamics modeling communities. While these efforts have been advancing, it has become clea...

The Analysis of Resource-limited Vision Systems

This paper explores the ways in which resource limitations influence the nature of perceptual and cognitive processes. A framework is developed that allows early visual processing to be analyzed in terms of these limitations. In this approach, there is no one “best” system for any visual process. Rather, a spectrum of systems exists, differing in the particular trade-offs made between performan...