Abstract¿Providing up-to-date input to users' applications is an important data management problem for a distributed computing environment, where each data storage location and intermediate node may have specific data available, storage limitations, ...

The paper presents the results of performance analyses of a seismic analysis kernel code on the KSR multiprocessors. The purpose of such analysis is to understand the performance behaviors of a class of applications on shared memory parallel machines. ...

Full cross section calculations of ion-temperature-gradient-driven turbulence with Landau closure are being carried out as part of the Numerical Tokamak Turbulence Project, one of the U. S. Department of Energy's Phase II Grand Challenges. To include ...

Algorithms and methods for analyzing large amounts of data are studied and developed. This paper presents a Data Mining (DM) method operated in grid computing environment. Because DM technology uses large amounts of data and requires costs to compute, ...

Tourism is one of the major sources of income for many countries. Therefore, providing efficient, real-time service for tourists is a crucial competitive asset which needs to be enhanced using major technological advances. The current research has the ...

The key issue in achieving a pedestrian navigation service is to grasp the spatial context of pedestrians, which is mainly characterized by the places of their interest. We have developed a pedestrian navigation system uNavi, based on our proposed infrastructure ...

An essential aspect of mobile and ubiquitous computing research is evaluation within the expected usage context, including environment. When that environment is an urban center, it can be dynamic, expansive, and unpredictable. Methodologies that focus ...

Mobile information dissemination and sharing infrastructure is being proposed to support ubiquitous government. We report a Mobile Environmental Information System (MENVIS) that delivers auto-guided environmental tour information for New Jersey and New ...

This study is motivated by the increased need to understand human response to video-links, 3G telephony and avatars. We focus on response of participants to audiovisual presentations of talking heads, and examine the effect of noise and temporal misalignment ...

Abstract: Knowledge refinement tools assist in the debugging and maintenance of knowledge based systems (KBSs) by attempting to identify and correct faults in the knowledge that account for incorrect problem-solving. Most refinement systems target a ...

With the explosion of the Internet, we are evolving a worldwide network-computing environment. At this point, the surged challenge is the next evolutionary technology for the Internet-oriented applications. A KODAMA (Kyushu university Open & Distributed ...

A fault-tolerant systolic sorter design is proposed. An algorithm-based fault tolerance is achieved by testing the invariants of a systolic sorter during normal operation. Transient and permanent computation errors can be detected by using error-checking ...

As one of the promising efforts to minimize the surging microprocessor power consumption, adaptive computing environments (ACEs), where microarchitectural resources can be dynamically tuned to match a program's run-time requirement and characteristics, ...

We present fundamental geometric data structures and algorithms offered by CGAL, the Computational Geometry Algorithms Library. As geometry is ubiquitous this library is used by application developers in medical imaging, VLSI, CAD/CAM, geophysics, computer ...

The MaTRiX+/sup +/ system is a high-performance matrix computation environment. It provides support for the task of constructing efficient implementations for the complicated matrix structures that arise in modern scientific and engineering applications. ...

We propose a mobile directory service explicitly devised for pervasive RFID contexts. The registry adopts an OWL-S 1.1 Profile instance annotation of mobile services and resources. Ontology-based metadata are exploited in order to perform a semantic-based ...

TiltType is a novel text entry technique for mobile devices. To enter a character, the user tilts the device and presses one or more buttons. The character chosen depends on the button pressed, the direction of tilt, and the angle of tilt. TiltType consumes ...

Distributed computing using PCs volunteered by the public can provide high computing capacity at low cost. However, computational results from volunteered PCs have a non-negligible error rate, so result validation is needed to ensure overall correctness. ...

Wearable sensors can enhance the relationship between professional downhill skiers and their trainers by revealing information about the athlete's motions--such as force, rotation, or acceleration--that are difficult or impossible for the trainer to ...