4 ms·
> The voice recognition is verging on instantaneous. Exactly! Shows you how much it has recognized as you speak. Immediate feedback. More important is the spee
by ashishgandhi 14y ago
> The voice recognition is verging on instantaneous.
Exactly! Shows you how much it has recognized as you speak. Immediate feedback. More important is the speed of getting back results. Google Now is certainly a little faster in that regard as well.
Reminded me of a 21 questions test with Siri and Google Now (on a Nexus with Android 4.1 I think) side by side as they listened simultaneously. It's interesting to see how both perform in different scenarios. Generally when Google search has the answer Google Now is a little faster. When Google search doesn't have a direct answer Google Now boils down to Google Search results - right there - as opposed to an offer to do a web search. In my experience Siri tends to have an answer more often.
The general theme was:
1. Questions that get answered by Wolfram Alpha were slower on Siri. In one test Wolfram Alpha didn't have an answer and Siri offered a web search where as Google's graph did have an answer.
2. For requests like "Call BestBuy" Siri looked up BestBuy stores and offered you the choice of which one to call where as Google Now said there were no numbers for BestBuy in the phonebook.
3. Sports questions (which I don't quite care about personally, sorry) tend to be answered way better by Siri. I remember a question about which sports personalities was taller and Siri had an direct answer with other stats whereas Google Now was a list of search result links - no ads yet. It was the same thing for another sports trivia question.
4. Siri would sometimes have to wait - almost like a timeout - on a response from Apple. Google Now didn't face such issues.
5. In some case Siri would take a little longer but give back more information - when you talk about restaurants it'll include reviews, price range and distance.
Source: http://youtu.be/z_pclCFpjgw http://youtu.be/z_pclCFpjgw (video)
- k-mcgrady 14y ago>> "Exactly! Shows you how much it has recognized as you speak." That's the one thing about it I didn't like. The fact that I could see a mistake made me want to try and correct it (but I don't see any obvious way to say 'that last word is incorrect').
- SquareWheel 14y agoIf it acts like Android voice recognition, it is smart enough to correct speech on the fly.
- ghshephard 14y agoThere is something about the voice recognition algorithm that uses later words to understand what you were saying earlier. For example, whenever I say, "Show me pictures of humpback whales" - GoogleVoice starts off with "Show me pictures of home" and then when I add the word "back", it corrects home to be hump. To some degree, that's probably how the human brain works. If you say out loud "Show me pictures of Hump" and then just stop, it really does sound pretty close to "Show me pictures of home" I am very, very impressed on how much better than Siri the voice recognition is in terms of speed and responsiveness. And, it works just fine on my iPhone 4, where Siri isn't an option.
- joshhart 14y agoThe standard machine learning approach for doing exactly what you describe is to use a conditional random field. I don't think wikipedia has a great page on it , but check out http://en.wikipedia.org/wiki/Conditional_random_field http://en.wikipedia.org/wiki/Conditional_random_field for a jumping place. CRFs are used in places like voice and images where recognition or decoding of a segment logically depends on the pieces near it.
- RickButler 14y agoFor clarification, it's much more likely a Hidden Markov Model. Most speech recognition algorithms use some form of Baysesain probability model, HMM being the most commonly used e.g. Sphinx CMU.
- rustynails77 14y agoWow. I haven't tested IOS6 with SIRI, but when it was Google Voice v/s Siri on IOS 5.1.1 - there was no comparison. Google voice won hands down. Even in a noisy environment. I've just bought a second hand iPhone 4s that will be upgraded to IOS6 so I can compare for myself. Until a month ago, Google was easily king of the hill.
- robmcm 14y agoRemember Google has no incentive to get you to upgrade your phone, Apple does.