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GeneralAI (Natural Language Processing) - How Advanced Is It Really? Pin
Member 1041561121-Dec-16 5:57
Member 1041561121-Dec-16 5:57 
Hi All,

First post here. Hope this is a suitable subject. You've no doubt all noticed that AI is the flavour of the month on numerous web sites and media outlets but I'm wondering (based on my current personal experience discussed below) if it truly is as far advanced as the hype would have us believe.

Recently I've been working on a personal project to attempt to summarize into a very simple form the remarks of stock analysts on specific stocks on a Canadian TV show. Amongst other things, I want to identify the stock & figure out if the remarks were +ve, neutral or -ve (i.e. their "sentiment"). I've been using NLP tools from Stanford & Microsoft Cognitive Services (MSC) as part of a C# .Net program. Using the Stanford sentiment API, I have trained a model on a set of about 900 plus sentences & about 3000 business word rated as + or - by other. After about 4 iterations I have about 90% accuracy on the training set & near 80% on a reserved set of another 150 sentences. Seems OK but, for example, "Stock's Up 180% This Year" & "The Stocks Are Doing Well" are still rated as neutral and "I'm Very Cautious On The Utility" is rated as positive! I haven't spent as much effort on the MSC sentiment tool but it did not do too well on a limited test. For example, "It's Underperforming The Market" gave a score of 0.82 which is very positive in the Stanford rating system. Overall, there does not seem to be that much "intelligence" at work in these classifiers despite words such as "deep learning" being mentioned.

Sorry about the length of post required to provide context. Any thoughts on this topic appreciated. Am I expecting too much or am I missing something vital that take things to another level? Regards, RB

GeneralRe: AI (Natural Language Processing) - How Advanced Is It Really? Pin
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