Name
Abstract | ||
|---|---|---|
As part of the ongoing project, Project Halo, our goal is to build a system capable of answering questions posed by novice users to a formal knowledge base. In our current context, the knowledge base covers selected topics in physics, chemistry, and biology, and our question set consists of AP (advanced high-school) level examination questions. The task is challenging because the questions are linguistically complex and are often incomplete (assume unstated knowledge), and because the users do not have prior knowledge of the system's contents. Our solution involves two parts: a controlled language interface, in which users reformulate the original natural language questions in a simplified version of English, and a novel problem solver that can elaborate initially inadequate logical interpretations of a question by selecting relevant pieces of knowledge in the knowledge base. An evaluation of the work in 2006 showed that this approach is feasible and that complex, multisentence questions can be posed and answered, thus illustrating novel ways of dealing with the knowledge capture impedance between users and a formal knowledge base, while also revealing challenges that still remain. |
Year | DOI | Venue |
|---|---|---|
2007 | 10.1145/1298406.1298419 | K-CAP |
Keywords | Field | DocType |
knowledge-based system,knowledge capture impedance,formal knowledge base,controlled language interface,illustrating novel way,unstated knowledge,multisentence question,level examination question,knowledge base,linguistically complex,prior knowledge,knowledge based system,natural language,knowledge based systems,algorithms,question answering | Procedural knowledge,Data mining,Knowledge integration,Question answering,Domain knowledge,Computer science,Personal knowledge management,Knowledge-based systems,Knowledge base,Open Knowledge Base Connectivity | Conference |
Citations | PageRank | References |
23 | 1.69 | 9 |
Authors | ||
11 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Peter Clark | 1 | 780 | 72.67 |
| Shaw Yi Chaw | 2 | 142 | 12.39 |
| Ken Barker | 3 | 834 | 83.23 |
| Vinay Chaudhri | 4 | 78 | 7.52 |
| Philip Harrison | 5 | 23 | 1.69 |
| James Fan | 6 | 851 | 50.94 |
| Bonnie E. John | 7 | 1989 | 318.97 |
| Bruce Porter | 8 | 316 | 30.66 |
| Aaron Spaulding | 9 | 247 | 17.45 |
| John Thompson | 10 | 188 | 16.34 |
| Peter Yeh | 11 | 47 | 2.97 |