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Impedance matching of humans ⇔ machines in high-Q information retrieval systems

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5 Author(s)

Treating the information retrieval (IR) task as one of classification has been shown to be the most effective way to achieve high performance. In real-world Systems, a human is the ultimate determinant of relevance and must be integrated symbiotically into the control structures. We report on a hybrid, Human-Assisted Computer Classification system that opportunistically pairs processes of Active Learning and User Modeling to produce a high-Q computational engine. Top-down human goals are impedance-matched with bottom-up corpus analysis utilizing critical control loops. The System contributions of humans and machines as 'Proxy,' 'Assessor,' and 'Classifier' elements are blended through inter-related 'Model,' 'Match,' and 'Measure' processes (M3) to achieve consistently high precision IR with high recall. We report results for over a dozen topics, with confirmation of internal measures from topic 103 of the 2008 TREC legal track's interactive task.

Published in:

Systems, Man and Cybernetics, 2009. SMC 2009. IEEE International Conference on

Date of Conference:

11-14 Oct. 2009