TY - JOUR
T1 - ARKTOS
T2 - A knowledge engineering software tool for images
AU - Soh, Leen Kiat
AU - Tsatsoulis, Costas
N1 - Funding Information:
We would like to thank Denise Gineris, Mary Ruth Keller, Mohammad Sharif Chowdhury and Katherine Wilson for their continuing evaluation of ARKTOS and its knowledge engineering software package. We would like to thank Todd Bowers, Andrew Williams, John Gauch, Hsinyen Wei and Yanning Zhu for their participation in the prototyping stage of ARKTOS, and Cheryl Bertoia of the National Ice Center, Ginette Leger, Denis Lambert and Dean Flett of the Canadian Ice Service, and Kim Partington of NASA for their sea ice expertise. This research work was supported in part by a Naval Research Laboratory research grant, contract number N00014-95-C-6038.
PY - 2002/12
Y1 - 2002/12
N2 - The goal of our ARKTOS project is to build an intelligent knowledge-based system to classify satellite sea ice images. It involves acquiring knowledge from sea ice experts, quantifying such knowledge as computational entities and ultimately building an intelligent classifier. In this paper we describe a two-stage knowledge engineering approach that facilitates explicit knowledge transfer, converting implicit visual cues and cognition of the experts to explicit attributes and rules implemented by the engineers. First, there is a prototyping stage that involves interviewing sea ice experts, transcribing the sessions, identifying descriptors and rules, designing and implementing the knowledge and delivering the prototype. The objective of this stage is to obtain a modestly accurate classification system quickly. Second, there is a refinement stage that involves evaluating the prototype, refining the knowledge base, modifying the design and re-evaluating the improved system. Since the refinement is evaluation-driven, the experts and the engineers are motivated explicitly to improve the knowledge base and are able to communicate with each other using a common, consistent platform. Moreover, since the classification result is immediately available, both sides are able to efficiently assess the correctness of the system. To facilitate the knowledge engineering of the second stage, we have designed and built three Java-based graphical user interfaces: arktosGUI, arktosViewer and arktosEditor. arktosGUI concentrates on feature-based refinement of specific attributes and rules. arktosViewer deals with regional evaluation. arktosEditor has a rule indexing and search mechanism and knowledge base editing capabilities.
AB - The goal of our ARKTOS project is to build an intelligent knowledge-based system to classify satellite sea ice images. It involves acquiring knowledge from sea ice experts, quantifying such knowledge as computational entities and ultimately building an intelligent classifier. In this paper we describe a two-stage knowledge engineering approach that facilitates explicit knowledge transfer, converting implicit visual cues and cognition of the experts to explicit attributes and rules implemented by the engineers. First, there is a prototyping stage that involves interviewing sea ice experts, transcribing the sessions, identifying descriptors and rules, designing and implementing the knowledge and delivering the prototype. The objective of this stage is to obtain a modestly accurate classification system quickly. Second, there is a refinement stage that involves evaluating the prototype, refining the knowledge base, modifying the design and re-evaluating the improved system. Since the refinement is evaluation-driven, the experts and the engineers are motivated explicitly to improve the knowledge base and are able to communicate with each other using a common, consistent platform. Moreover, since the classification result is immediately available, both sides are able to efficiently assess the correctness of the system. To facilitate the knowledge engineering of the second stage, we have designed and built three Java-based graphical user interfaces: arktosGUI, arktosViewer and arktosEditor. arktosGUI concentrates on feature-based refinement of specific attributes and rules. arktosViewer deals with regional evaluation. arktosEditor has a rule indexing and search mechanism and knowledge base editing capabilities.
KW - Evaluation-driven refinement
KW - Intelligent image classification
KW - Knowledge engineering
UR - http://www.scopus.com/inward/record.url?scp=0036904639&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0036904639&partnerID=8YFLogxK
U2 - 10.1006/ijhc.2002.1026
DO - 10.1006/ijhc.2002.1026
M3 - Article
AN - SCOPUS:0036904639
SN - 1071-5819
VL - 57
SP - 469
EP - 496
JO - International Journal of Human Computer Studies
JF - International Journal of Human Computer Studies
IS - 6
ER -