A nomenclature labeling algorithm for the human bronchial tree down to sub-lobar segments is proposed, as a means of inter and intra subject comparisons for the evaluation of lung structure and function. The algorithm...
详细信息
This paper presents a collaborative virtual environment for problem solving in civil engineering, which represents a building with problems related to its structural design (e.g., fissures). In this environment the st...
详细信息
This paper presents a collaborative virtual environment for problem solving in civil engineering, which represents a building with problems related to its structural design (e.g., fissures). In this environment the students play the role of civil engineers. They need to detect the structural problems and evaluate their causes in order to be able to solve them. To accomplish this, the students can act upon the structural elements included in the environment (e.g., pillars) or make use of the working tools that are available (e.g., tape measure). This distributed environment allows for the exploration of the possibility of student collaboration in virtual reality. Furthermore, its design intends to provide a way to implement problem solving in collaborative environments in which genuine interdependence occurs i.e. team members must have different knowledge or abilities in order to create genuine collaboration.
Applications that analyze, mine, and visualize large datasets are considered an important class of applications in many areas of science, engineering, and business. Queries commonly executed in data analysis applicati...
详细信息
We propose new hybrid methods for automated segmentation of radiological patient data and the Visible Human data. In this paper, we integrate boundary-based and region-based segmentation methods which amplifies the st...
详细信息
The problem of routing in congested communication networks was studied. A noncooperative network consisting of a set of m parallel links within a game theoretic framework was considered for analysis. A collection of n...
详细信息
ISBN:
(纸本)9781581133493
The problem of routing in congested communication networks was studied. A noncooperative network consisting of a set of m parallel links within a game theoretic framework was considered for analysis. A collection of n network users each employing a mixed strategy to control assigned traffic was assumed. Both uniform and nonuniform link capacities were considered for routing traffic in order to minimize the maximum expected latency over all links.
We present a new C++ framework which enables writing of divide-and-conquer (DaC) applications very easily which are then automatically parallelized by dynamic partitioning of the DaC tree and process migration. The so...
详细信息
In this paper we present C2P, a new clustering algorithm for large spatial databases, which exploits spatial access methods for the determination of closest pairs. Several extensions are presented for scalable cluster...
ISBN:
(纸本)1558608044
In this paper we present C2P, a new clustering algorithm for large spatial databases, which exploits spatial access methods for the determination of closest pairs. Several extensions are presented for scalable clustering in large databases that contain clusters of various shapes and outliers. Due to its characteristics, the proposed algorithm attains the advantages of hierarchical clustering and graphtheoretic algorithms providing both efficiency and quality of clustering result. The superiority of C2P is verified both with analytical and experimental results.
Environmental applications share common features that make them distinct from typical applications of other areas of applied computerscience. This fact has lead during the last years to the development of Environment...
ISBN:
(纸本)3540424903
Environmental applications share common features that make them distinct from typical applications of other areas of applied computerscience. This fact has lead during the last years to the development of Environmental informatics, a novel specialty of Applied informatics, which studies specific problems related with the application of computerscience techniques in environmental problems. In environmental applications often many different, non homogeneous information sources can be found, such as text data e.g. environmental legislation or research projects results, measurement data from monitoring networks, structural data on chemical substances, satellite data etc. In particular, environmental data is often geographically coded, i.e. information is attached to a particular point or region in space. Secondly, some of the data objects are multidimensional and have to be represented by means of complex geometric objects (polygons or curves).
We investigate experimentally a dependency graph approach to the distributed parallel computation of the generic transitive closure problem. A parallel coarse-grained algorithm is derived from a finegrained algorithm....
详细信息
暂无评论