Reasoning with portions of precedents
ICAIL '91 Proceedings of the 3rd international conference on Artificial intelligence and law
Evaluating Explanations: A Content Theory
Evaluating Explanations: A Content Theory
How Different Is Different? Arguing About the Significance of Similarities and Differences
EWCBR '96 Proceedings of the Third European Workshop on Advances in Case-Based Reasoning
Meta-Cases: Explaining Case-Based Reasoning
EWCBR '96 Proceedings of the Third European Workshop on Advances in Case-Based Reasoning
An Explicit Representation of Reasoning Failures
ICCBR '97 Proceedings of the Second International Conference on Case-Based Reasoning Research and Development
Assessing Relevance with Extensionally Defined Principles and Cases
Proceedings of the Seventeenth National Conference on Artificial Intelligence and Twelfth Conference on Innovative Applications of Artificial Intelligence
Combining case-based and rule-based reasoning: a heuristic approach
IJCAI'89 Proceedings of the 11th international joint conference on Artificial intelligence - Volume 1
Experience management: foundations, development methodology, and internet-based applications
Experience management: foundations, development methodology, and internet-based applications
Explanation in Case-Based Reasoning---Perspectives and Goals
Artificial Intelligence Review
Case-Based Collective Inference for Maritime Object Classification
ICCBR '09 Proceedings of the 8th International Conference on Case-Based Reasoning: Case-Based Reasoning Research and Development
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Identifying potential terrorist threats is a crucial task, especially in our post 9/11 world. This task is performed by intelligence analysts, who search for threats in the context of an overwhelming amount of data. We describe AHEAD (Analogical Hypothesis Elaborator for Activity Detection), a knowledge-rich post-processor that analyzes automatically-generated hypotheses using an interpretive case-based reasoning methodology to help analysts understand and evaluate the hypotheses. AHEAD first attempts to retrieve a functional model of a process, represented in the Task-Method-Knowledge framework (Stroulia & Goel, 1995; Murdock & Goel, 2001), to identify the context of a given hypothesized activity. If retrieval succeeds, AHEAD then determines how the hypothesis instantiates the process. Finally, AHEAD generates arguments that explain how the evidence justifies and/or contradicts the hypothesis according to this instantiated process. Currently, we have implemented AHEAD's case (i.e., model) retrieval step and its user interface for displaying and browsing arguments in a human-readable form. In this paper, we describe AHEAD and detail its first evaluation. We report positive results including improvements in speed, accuracy, and confidence for users analyzing hypotheses about detected threats.