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Ask-the-Expert: Active Learning Based Knowledge Discovery Using the Expert
NTRS Full-Text: Click to View  [PDF Size: 4.8 MB]
Author and Affiliation:
Das, Kamalika(Universities Space Research Association, Moffett Field, CA, United States)
Abstract: Often the manual review of large data sets, either for purposes of labeling unlabeled instances or for classifying meaningful results from uninteresting (but statistically significant) ones is extremely resource intensive, especially in terms of subject matter expert (SME) time. Use of active learning has been shown to diminish this review time significantly. However, since active learning is an iterative process of learning a classifier based on a small number of SME-provided labels at each iteration, the lack of an enabling tool can hinder the process of adoption of these technologies in real-life, in spite of their labor-saving potential. In this demo we present ASK-the-Expert, an interactive tool that allows SMEs to review instances from a data set and provide labels within a single framework. ASK-the-Expert is powered by an active learning algorithm for training a classifier in the back end. We demonstrate this system in the context of an aviation safety application, but the tool can be adopted to work as a simple review and labeling tool as well, without the use of active learning.
Publication Date: Aug 01, 2017
Document ID:
20170012210
(Acquired Dec 19, 2017)
Subject Category: COMPUTER PROGRAMMING AND SOFTWARE
Report/Patent Number: ARC-E-DAA-TN46395
Document Type: Oral/Visual Presentation
Publication Information: (SEE 20170010408)
Meeting Information: Machine Learning (ML) Workshop 2017; 29-31 Aug. 2017; Moffett Field, CA; United States
Meeting Sponsor: NASA; Washington, DC, United States
Contract/Grant/Task Num: NNA16BD14C
Financial Sponsor: NASA Ames Research Center; Moffett Field, CA, United States
Organization Source: NASA Ames Research Center; Moffett Field, CA, United States
Description: 23p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright; Public use permitted
NASA Terms: MACHINE LEARNING; DATA MINING; ALGORITHMS; GRAPHICAL USER INTERFACE; COMPUTER PROGRAMS; AIRCRAFT SAFETY; EDUCATION; FLIGHT SAFETY
Other Descriptors: ACTIVE LEARNING; GUI
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