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Which topics on Quora are related to the technology behind Apple Siri?

According to ProgrammableWeb, Apple Siri uses more than 35 APIs [1].  For instance, Siri accounts for about a quarter of the queries fielded by Wolfram|Alpha [2].  Yelp is another of the APIs Siri uses [3].

Originally, Siri was built on SRI International CALO (Cognitive Assistant that Learns and Organizes) [4].  What is not so widely known is that SPARK (SRI Procedural Agent Realization Kit) [5] forms the heart of CALO’s task execution.

It’s fairly certain that Nuance Communications ASR (Automatic Speech Recognition) is behind Siri [6].  And in terms of Cloud Computing, apparently Apple’s new solar-powered data center in North Carolina “is handling at least part of the workload for Apple’s Siri voice command system” [7].

[1] http://blog.programmableweb.com/2011/10/04/are-there-open-apis-behind-apples-new-voice-commands/

[2] http://www.nytimes.com/2012/02/07/technology/wolfram-a-search-engine-finds-answers-within-itself.html

[3] http://officialblog.yelp.com/2012/03/your-iphone-personal-assistant-now-with-more-yelp.html

[4] http://en.wikipedia.org/wiki/CALO

[5] http://www.ai.sri.com/~spark/

[6] http://techcrunch.com/2011/05/09/apple-nuance-data-center-deal/

[7] http://www.macobserver.com/tmo/article/apples_north_carolina_data_center_adding_solar_power/

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