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English Language Training for Navy Enlisted Personnel Who Speak English as a Second Language
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In: DTIC AND NTIS (1990)
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| 62 |
Northeast Artificial Intelligence Consortium (NAIC). Volume 2. Discussing, Using, and Recognizing Plans
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In: DTIC AND NTIS (1990)
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| 63 |
Meanings of Nonnumerical Probability Phrases
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In: DTIC AND NTIS (1990)
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| 64 |
Removal of Noise from Noise-Degraded Speech Signals. Panel on Removal of Noise from a Speech/Noise Signal
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In: DTIC AND NTIS (1989)
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| 66 |
Investigative Report Writing: A Field Study
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In: DTIC AND NTIS (1989)
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| 67 |
Northeast Artificial Intelligence Consortium Annual Report for 1987. Volume 4. Research in Automated Photointerpretation
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In: DTIC AND NTIS (1989)
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| 68 |
Narrative Compression Coding for a Channel with Errors.
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In: DTIC AND NTIS (1988)
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Abstract:
Data compression codes offer the possibility of improving the thruput of existing communication systems in the near term. This study was undertaken to determine if data compression codes could be utilized to provide message compression in a channel with up to a 0.10 bit error rate. The data compression capabilities of codes were investigated by estimating the average number of bits-per-character required to transmit narrative files. The performance of the codes in a channel with errors (a noisy channel) was investigated in terms of the average numbers of characters-decoded-in-error and of characters-printed-in-error-per-bit-error. Results were obtained by encoding four narrative files, which were resident on an IBM-PC and use a 58 character set. The study focused on Huffman codes and suffix/prefix comma-free codes. Other data compression codes, in particular, block codes and some simple variants of block codes, are briefly discussed to place the study results in context. Comma-free codes were found to have the most promising data compression because error propagation due to bit errors are limited to a few characters for these codes. A technique was found to identify a suffix/prefix comma-free code giving nearly the same data compressions as a Huffman code with much less error propagation than the Huffman codes. Greater data compression can be achieved through the use of this comma-free code word assignments based on conditioned probabilities of character occurrence. Keywords: Comma-free data, Data compression capabilities, and Huffman code. ; Presented at the AGARD Electromagnetic Wave Propagation Panel, Lisbon, (Portugal) 19-23 Oct 87.
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Keyword:
*CODING; *COMMUNICATION AND RADIO SYSTEMS; *DATA PROCESSING; *MESSAGE PROCESSING; Command; COMPRESSION; Control and Communications Systems; DATA COMPRESSION; ERRORS; FILES(RECORDS); Optics; PROBABILITY; PROPAGATION; RATES; VARIATIONS
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URL: http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA191577
http://www.dtic.mil/docs/citations/ADA191577
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| 69 |
Pitfalls in the Use of Imperfect Information
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In: DTIC AND NTIS (1988)
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| 70 |
The Intelligibility of Natural and Vocoded Semantically Anomalous Sentences: A Comparative Analysis of English Monolinguals and German-English Bilinguals.
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In: DTIC AND NTIS (1987)
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| 71 |
Effect of the M25 Protective Mask and Hood on Speech Intelligibility and Voice Level.
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In: DTIC AND NTIS (1987)
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| 72 |
The Aerial Exploitation Battalion: Solution to the 'Timely' Intelligence Dilemma at Corps and Below
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In: DTIC AND NTIS (1987)
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| 73 |
Intelligibility of ICAO (International Civil Aviation Organization) Spelling Alphabet Words and Digits Using Severely Degraded Speech Communication Systems. Part 1. Narrowband Digital Speech.
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In: DTIC AND NTIS (1987)
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| 74 |
Sales Training for Army Recruiter Success: Supplementary Information on Modeling the Sales Strategies and Skills of Excellent Recruiters
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In: DTIC AND NTIS (1987)
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| 75 |
Sales Training for Army Recruiter Success: Interviews with Excellent Recruiters
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In: DTIC AND NTIS (1987)
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| 76 |
Sales Training for Army Recruiter Success: Modeling the Sales Strategies and Skills of Excellent Recruiters
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In: DTIC AND NTIS (1987)
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| 77 |
Parameters for Automatic Speaker Recognition over LPC (Linear Predictive-Coding) Systems.
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In: DTIC AND NTIS (1986)
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| 78 |
Neuro-Linguistic Programming: Human Technology for Today's Air Force.
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In: DTIC AND NTIS (1986)
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| 79 |
Development of Programming Techniques for SIMD Computers.
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In: DTIC AND NTIS (1986)
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| 80 |
Multi-User Real-Time Speech Processing Facility.
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In: DTIC AND NTIS (1985)
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