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HIT 220 Chapter 11

Speech Recognition

Artificial neural networks (ANN) a computational technique based on artificial intelligence and machine learning in which the structure and operation are inspired by the properties and operation of the human brain
Back- end speech recognition (BESR) the "specific use of SRT in an environment where the recognition process occurs after the completion of dictation by sending voice files through a server"
Bigram example "word pair" world affairs over 'whirled affairs' because world occurs more frequently than 'whirled', giving it a higher unigram probability and b/c it occurs more in the speech & writing of target users resulting in higher bigram probability
Continuous speech recognition a computer technology that automatically translates voice patterns into written language in real time
Discrete speech older voice recognition applications require each word to be dictated slowly and distinctly by the user, allows "the software to determine where one word begins and the next stops
Front-end recognition( FESR) "the specific use of speech recognition technology in an environment where the recognition process occurs in real time(or near real time) as dictation takes place"
Hidden Markov model an algorithm used in voice recognition
Interactive voice response system an automated call handler that can be configured to automatically dial a log of callers and deliver appointment reminders, lab results, and other information when a person answers the phone
Key- word spotting used in call routing by a client who when prompted by the system will speak a name or key word and the system will route the caller to the appropriate area or department for phone assistance, used in companies with large client bases,directory assistance
Marco similar to a template in the SRT, uses "series of keystrokes & or commands that are executed on command, suited to generating "large amounts of text using only a few commands that are easily recognized"
Medical transcriptionists (MTs) a medical language specialist who types or word processes information dictated by providers into written form
Natural language processing technology conversion of human language(structured/unstructured)into data that can be translated and then manipulated by computer systems, branch of artificial intelligence
Quadgram a term used in voice recognition to indicate word sequences with four words
Semantics the meaning of a word or term; sometimes refers to comparable meaning, usually achieved through a standard vocabulary
Speaker dependent a speech recognition system that is "speaker dependent" means that it has been "trained" to a particular user and already has an established vocabulary for the user
Speech recognition technology (SRT) technology that translates speech to text
Syntax a term that refers to the comparable structure or format of data, usually as they are being transmitted from one system to another
Template a pattern used in computer- based patient records to capture data in a structured manner
Trigram a term used in voice recognition to indicate word sequences with three words
Turnaround time (TAT) defined as "the elapsed time from completion of dictation to the delivery of the transcribed document either in printed medium or electronically to a repository
VoiceXML (VXML) the standard "with which voice applications are developed", voice extensible markup language
Created by: cricketknight