Term-weighting approaches in automatic text retrieval
Information Processing and Management: an International Journal
Focused crawling: a new approach to topic-specific Web resource discovery
WWW '99 Proceedings of the eighth international conference on World Wide Web
Helping people find what they don't know
Communications of the ACM
Information retrieval on the web
ACM Computing Surveys (CSUR)
Query association for effective retrieval
Proceedings of the eleventh international conference on Information and knowledge management
El-Tech: A Performance Support System with Embedded Training for Electronics Technicians
Proceedings of the Eleventh International Florida Artificial Intelligence Research Society Conference
Combining Concept Mapping with CBR: Towards Experience-Based Support for Knowledge Modeling
Proceedings of the Fourteenth International Florida Artificial Intelligence Research Society Conference
Aiding knowledge capture by searching for extensions of knowledge models
Proceedings of the 2nd international conference on Knowledge capture
Query expansion using associated queries
CIKM '03 Proceedings of the twelfth international conference on Information and knowledge management
Graphs and Hypergraphs
Letizia: an agent that assists web browsing
IJCAI'95 Proceedings of the 14th international joint conference on Artificial intelligence - Volume 1
Suggesting novel but related topics: towards context-based support for knowledge model extension
Proceedings of the 10th international conference on Intelligent user interfaces
ICALT '05 Proceedings of the Fifth IEEE International Conference on Advanced Learning Technologies
Using genetic algorithms to evolve a population of topical queries
Information Processing and Management: an International Journal
A semi-supervised incremental algorithm to automatically formulate topical queries
Information Sciences: an International Journal
BorderFlow: A Local Graph Clustering Algorithm for Natural Language Processing
CICLing '09 Proceedings of the 10th International Conference on Computational Linguistics and Intelligent Text Processing
Exploiting rich context: an incremental approach to context-based web search
CONTEXT'05 Proceedings of the 5th international conference on Modeling and Using Context
A model for anticipatory event detection
ER'06 Proceedings of the 25th international conference on Conceptual Modeling
Proceedings of the 6th International Conference on Theory and Practice of Electronic Governance
Hi-index | 0.00 |
Effective knowledge management may require going beyond initial knowledge capture, to support decisions about how to extend previously-captured knowledge. Electronic concept maps, interlinked with other concept maps and multimedia resources, can provide rich knowledge models for human knowledge capture and sharing. This paper presents research on methods for supporting experts as they extend these knowledge models, by searching the Web for new context-relevant topics as candidates for inclusion. This topic search problem presents two challenges: First, how to formulate queries to seek topics that reflect the context of the current knowledge model, and, second, how to identify candidate topics with the right balance of novelty and relevance. More generally, this problem raises the broad question of the interaction of topic information from the local analysis space (a collected set of documents) and the global search space (the Web). The paper develops a framework for understanding this interaction, and proposes and evaluates techniques for addressing the query formation and topic identification questions by dynamically extracting topic descriptors and discriminators from a knowledge model, to characterize information needs for retrieval and filtering of relevant material. Using these techniques, we have developed a support tool that starts from a knowledge model under construction and automatically produces a set of suggestions for topics to include, proactively supporting users as they extend knowledge models.