Concept-map-based knowledge models are widely used for knowledge capture and sharing. When libraries of concept maps are available, those concept maps can provide a useful context for understanding new documents, and the new documents can provide useful annotations to the knowledge models—if the right documents can be associated to the right concept maps. This paper presents ongoing research on...

A proposal is presented for integration between a graphical model, such as conceptual maps, and ontologies codified in the OWL language. Conceptual maps are a flexible form of knowledge representation, very useful in education-related collaborative environments; OWL is a language of knowledge representation oriented to semantic analysis and processing carried out by machines. Integration consis...

Depth maps taken by the low cost Kinect sensor are often noisy and incomplete. Thus, post-processing for obtaining reliable depth maps is necessary for advanced image and video applications such as object recognition and multi-view rendering. In this paper, we propose adaptive directional filters that fill the holes and suppress the noise in depth maps. Specifically, novel filters whose window ...

We propose topology-based maps as a new representation of the workspace of a mobile robot. These maps capture the structure of the free space in the environment in terms of the basic topological notions of con-nectivity and adjacency. Topology-based maps can be automatically extracted from an occupancy grid built from sensor data using techniques borrowed from the image processing eld. Since th...

Title of Dissertation: One-Shot Multi-Winner Self-Organizing Maps Reiner Schulz, Doctor of Philosophy, July 22, 2004 Dissertation directed by: Dr. James Reggia Department of Computer Science There exist two different approaches to self-organizing maps (SOMs). One approach, rooted in theoretical neuroscience, uses SOMs as computational models of biological cortex. The other approach, taken in co...

The ISO standard ISO/IEC 13250 Topic Maps offers a flexible and powerful technique for knowledge representation. The standard defines the general concepts and provides – with intention – just the necessary minimum of semantic. But knowledge representation requires more semantic – earlier publications identified “templates”, “type hierarchies”, “association properties”, “inferences”, and “constr...

Security of a watermark refers to its resistance to unauthorized detecting and decoding, while watermark robustness refers to the watermark’s resistance against common processing. Many watermarking schemes emphasize robustness more than security. However, a robust watermark is not enough to accomplish protection because the range of hostile attacks is not limited to common processing and distor...

Optical Mapping is an established single-molecule, whole-genome analysis system, which has been used to gain a comprehensive understanding of genomic structure and to study structural variation of complex genomes. A critical component of Optical Mapping system is the image processing module, which extracts single molecule restriction maps from image datasets of immobilized, restriction digested...