Download Basic radio;: The essentials of electron tubes and their by J. Barton Hoag PDF

By J. Barton Hoag

A guide at the necessities of electron tubes and radio circuits

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Open innovation: Use of sources outside the group to generate and implement ideas (Chaordix 2012). The reader should note that this geography is very new and thus constantly changing. Some companies may have sprouted up since this chapter was written, and some may have disappeared. The Basics 17 Most of the sites that have sprung up recently are US based. A few non-US sites have been mentioned in later chapters. com (Taskcn 2012). The globalization of crowdsourcing is essential to its success in such areas as machine translation where access to native speakers of a given language may be limited on some US platforms.

In summary, there are several actions that a requester can take to ensure better audio. In the case of speech acquisition: • Give instructions as to how to use the microphone and rely on the honesty of the worker. • Ask the speaker to listen to what was recorded and approve it. • Sample the recorded signal level in one or two utterances and give the worker feedback. For speech transcription: • Use an audio captcha or have the worker transcribe one or more aforeknown utterances. • Do not let the worker continue if a transcription is empty or was started before the end of the playback.

Chernova et al. (2010) collected dialog data. They recorded the worker and then showed them the ASR transcription of what they had just said, using the WAMI toolkit (Gruenstein et al. 2009). Since the workers were participating in a dialog, if they saw that the system had made an error, they simply used their next dialog turn to attempt to correct it. Novotney and Callison-Burch (2010) used an MP3 upload and instructions for the use of the The Basics 19 recording software, but they did not report on whether they had checked in some way to see if the worker had complied or if they, too, relied on worker honesty.

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