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{ |
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"paper_id": "H89-1023", |
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"header": { |
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"generated_with": "S2ORC 1.0.0", |
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"date_generated": "2023-01-19T03:32:35.155911Z" |
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}, |
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"title": "Robust Speech Recognition Program Summary", |
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"authors": [ |
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{ |
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"first": "Clifford", |
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"middle": [ |
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"J" |
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], |
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"last": "Weinstein", |
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"suffix": "", |
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"affiliation": { |
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"laboratory": "MIT Lincoln Laboratory", |
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"institution": "", |
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"location": {} |
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}, |
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"email": "" |
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} |
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], |
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"year": "", |
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"venue": null, |
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"identifiers": {}, |
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"abstract": "", |
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"paper_id": "H89-1023", |
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"_pdf_hash": "", |
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"abstract": [], |
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"body_text": [ |
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{ |
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"text": "The Lincoln Laboratory Program in Robust Speech Recognition Technology was initiated in FY85 with the major goal of developing techniques for high-performance speech recognition under the stress and noise conditions typical of the fighter cockpit. After achieving significant advances in robust isolated-word recognition (IWR) during FY85 and FY86, the program evolved in FY87 to the development of robust continuous speech recognition (CSR) techniques for the stressful, limited-task-domain environment typical of the Pilot's Associate. In FY88, the Lincoln CSR work was extended successfully to the large-vocabulary task typical of the Battle Management environment. A major goal of the current program, starting in FY89, is to extend and apply these robust CSR techniques to talker-independent, noisy and distorted speech conditions.", |
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"section": "", |
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"sec_num": null |
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{ |
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"text": "The work in recognition in stress and noise produced a robust Hidden Markov Model (HMM) IWR system with 99% speaker-dependent (SD) accuracy for several difficult stress/noise databases, and very high performance for normal speech. Robustness techniques which were developed included multi-style training, robust estimation of parameter variances, use of time-differential speech parameters, and discriminant analysis.", |
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"cite_spans": [], |
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"section": "", |
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"sec_num": null |
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}, |
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{ |
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"text": "More recently, the robust HMM system has been extended to large-vocabulary CSR for both speakerdependent (SD) and speaker-independent (SI) tasks. Performance on the DARPA Resource Management task (991-word vocabulary, perple.xity-60) is 96.5% word accuracy (SD) and 87.5% word accuracy (SI). The robust HMM CSR has Mso been integrated in real-time with a simulated flight task, judged to be very realistic by a number of military pilots. Phrase recognition accuracy on the limited-vocabulary flight task is better than 99.5%.", |
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"cite_spans": [], |
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"section": "", |
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"sec_num": null |
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}, |
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{ |
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"text": "Goals for the current program include: (1) development of robust techniques for talker-independent recognition of noisy and distorted continuous speech; (2) research into the application of speaker recognition strategies to improve speech recognition performance; and (3) continued development and evaluation of CSR techniques on the DARPA Resource Management continuous-speech database.", |
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"cite_spans": [], |
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"eq_spans": [], |
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"section": "", |
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"sec_num": null |
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} |
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], |
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"back_matter": [], |
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"bib_entries": { |
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"BIBREF0": { |
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"ref_id": "b0", |
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"title": "Robust HMM-Based Techniques for Recognition of Speech Produced Under Stress and in Noise", |
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"authors": [ |
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{ |
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"first": "D", |
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"middle": [ |
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"B" |
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], |
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"last": "Paul", |
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"suffix": "" |
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}, |
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{ |
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"first": "R", |
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"middle": [ |
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"P" |
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], |
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"last": "Lippmann", |
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"suffix": "" |
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}, |
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{ |
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"first": "Y", |
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"middle": [], |
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"last": "Chen", |
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"suffix": "" |
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}, |
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{ |
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"first": "C", |
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"middle": [ |
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"J" |
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], |
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"last": "Weinstein", |
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} |
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], |
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"year": null, |
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"venue": "Proc. DARPA 1986 Speech Recognition Workshop", |
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"volume": "", |
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"issue": "", |
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"pages": "", |
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"other_ids": {}, |
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"num": null, |
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"urls": [], |
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"raw_text": "D.B. Paul, R.P. Lippmann, Y. Chen, C.J. Weinstein, \"Robust HMM-Based Techniques for Recognition of Speech Produced Under Stress and in Noise,\" Proc. DARPA 1986 Speech Recognition Workshop.", |
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"links": null |
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}, |
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"BIBREF1": { |
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"ref_id": "b1", |
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"title": "Lincoln Laboratory papers in Proc. DARPA 1987 Speech Recognition Workshop", |
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"authors": [], |
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"year": null, |
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"venue": "", |
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"volume": "", |
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"issue": "", |
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"pages": "82--104", |
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"urls": [], |
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"raw_text": "Lincoln Laboratory papers in Proc. DARPA 1987 Speech Recognition Workshop, pp. 82-104.", |
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"links": null |
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}, |
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"BIBREF2": { |
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"ref_id": "b2", |
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"title": "Speaker Stress-Resistant Continuous Speech Recognition", |
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"authors": [ |
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{ |
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"first": "D", |
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"middle": [ |
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"B" |
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], |
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"last": "Paul", |
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}, |
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"first": "E", |
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"raw_text": "D.B. Paul and E.A. Martin, \"Speaker Stress-Resistant Continuous Speech Recognition,\" ICASSP'88.", |
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"links": null |
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}, |
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"BIBREF3": { |
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"ref_id": "b3", |
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"title": "The Lincoln Robust Continuous Speech Recognizer", |
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"authors": [ |
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{ |
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"first": "D", |
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"middle": [ |
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"B" |
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], |
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"last": "Paul", |
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"raw_text": "D.B. Paul, \"The Lincoln Robust Continuous Speech Recognizer,\" ICASSP'89. i", |
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"links": null |
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} |
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}, |
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"ref_entries": {} |
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} |