Peter Clark, John Thompson, and Bruce Porter. A knowledge-based approach to questionanswering. AAAI'99 Fall Symposium on Question-Answering Systems. Orlando, Florida. 1999.  Home/Search   Document Details and Download   Summary   Related Articles   Check

.... Automated question answering (QA) research can be dated back to the 1960s, nevertheless has often been confined to domain specific expert systems ( 12] 9] Researchers have experimented with QA systems based on closed, pre tagged corpora (e.g. 8] 13] 3] or knowledge bases (e.g. 11] [5], 4] Many of these systems focus on Text REtrieval Conference (TREC) tasks. Researchers also have attempted to build QA systems on large collections of documents on the Web by combining information extraction and most advanced information retrieval technology (e.g. 7] 12] 1] Recently, ....

Peter Clark, John Thompson, and Bruce Porter. A knowledge-based approach to questionanswering. AAAI'99 Fall Symposium on Question-Answering Systems. Orlando, Florida. 1999.

....new concept. From here, the user adds, specializes, connects, and unifies nodes on the screen to gradually build a representation. An example of one of the simpler representations built by a user during the experimental evaluation is shown in Figure 2. Separate testing and questionanswering tools [14, 7] allow the users to debug and pose questions to their representations until they are satisfied. EVALUATION AND DISCUSSION During the summer of 2001, an extensive evaluation was performed on SHAKEN, including the graphical entry component described in this paper. Four users who were trained in ....

P. Clark, J. Thompson, and B. Porter. A knowledgebased approach to question-answering. In R. Fikes and V. Chaudhri, editors, Proc. AAAI'99 Fall Symposium on Question-Answering Systems. AAAI, 1999.

....new concept. From here, the user adds, specializes, connects, and unifies nodes on the screen to gradually build a representation. An example of one of the simpler representations built by a user during the experimental evaluation is shown in Figure 2. Separate testing and questionanswering tools [14, 7] allow the users to debug and pose questions to their representations until they are satisfied. EVALUATION AND DISCUSSION During the summer of 2001, an extensive evaluation was performed on SHAKEN, including the graphical entry component described in this paper. Four users who were trained in ....

P. Clark, J. Thompson, and B. Porter. A knowledgebased approach to question-answering. In R. Fikes and V. Chaudhri, editors, Proc. AAAI'99 Fall Symposium on Question-Answering Systems. AAAI, 1999.

....valid next actions, and answers to user s questions. The prototype was built as a small demonstrator, rather than for in service use, to provide input to Boeing and NASA s Space Station Training Program. Details of KB PHaSE are presented in [7] and the question answering technology is described in [8]. Our interest here is how the underlying knowledge base was assembled from component theories, rather than written from scratch. KB PHaSE includes representations of many domain specific objects (such as electrical circuits) and processes (such as information flow) that are derived from more ....

Peter Clark, John Thompson, and Bruce Porter. A knowledge-based approach to question-answering. In R. Fikes and V. Chaudhri, editors, Proc. AAAI'99 Fall Symposium on Question-Answering Systems. AAAI, 1999. (http://www.cs.utexas.edu/users/pclark/papers).

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