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  Topic Models Applied to Online News...
  Google Tech Talk August 11, 2010 ABSTRACT Presented by Alice Oh. Probabilistic topic models are useful for uncovering the underlying semantic structure of a collection of documents. We take a simple and widely used topic model, the Latent Dirichlet Allocation (LDA, Blei et al. 2003) and extend it in two ways. First, we construct topic chains to understand the dynamic semantic structure of an online news corpus, and second, we develop a unification model of sentiment and aspect to discover the detailed semantics of user generated reviews. For the topic chains research, we present a framework for comparing and clustering the topics discovered by LDA. We discuss how to interpret the resulting topic chains to understand the general topic trends, temporary issues, and the focus shifts within the topic chains. We applied the topic chains framework to 9 months of online news and present the results. For the aspect-sentiment unification model (ASUM) research, we base our model on an observation that users evaluate various aspects of a product in a review, such as the lens of the camera or the LCD display of a laptop, and each sentence usually represents one aspect and a corresponding sentiment toward that aspect. So we propose a sentence-LDA (SLDA) with a constraint that all words in a single sentence are generated from one aspect. Then we extend SLDA to Aspect and Sentiment Unification Model (ASUM) to jointly discover pairs of {aspect, sentiment} which we call senti-aspects. We <b>...</b>
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  I Got a 100% FREE Playstation 3, Xb...
  www.360Freebies.tk CNN news on getting FREE products like Xbox 360, IPhone, PS3, Laptop, IPad, IPod, LCD TV, Wii & much more. Don't believe me just watch the CNN news report. Research a company named Trainn they are a legitmite company that gives away free products and all you have to do is sign up for one of their FREE offers and get a couple friends to do it also. Goto http to get a link to all of the sites and get a full tutorial with referral help.
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  News Update: Apple Inc. CEO Apologi...
  Apple Inc. (NASDAQ:AAPL) has sold 1.7 million iPhone 4s within the first three days since the smart phone hit the market Thursday, June 24th; but Apple officials are apologizing to buyers for failure to meet demand. CEO Steve Jobs issued a press release Monday that said even though the iPhone 4G has been Apple's most successful product launch to date, "Even so, we apologize to those customers who were turned away because we did not have enough supply." Rodman and Renshaw analyst Ashok Kumar told PC World that Apple may have sold more iPhone 4s had it not been for the shortages and the smart phone's LG Display (at a time when buyers are demanding LCD screens). DigiTimes has reported a rumor that iPhone 4 suppliers continue to remain overwhelmed and will most likely experience supply shortages for a while. Shares of Apple are trading up 0.42% Monday afternoon at $267.81.
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  Sony President Talks New 3D Bravia...
  gamerlive.tv GamerLive.TV talks exclusively to Sony Electronics' President and COO Stan Glasgow about Sony's launch of its new 3D HD product lineup including new Bravia 3D LCD HDTVs with active 3D glasses, new Blu-Ray players and Playstation 3 in 3D. **************************************** *** SUBSCRIBE TO OUR YOUTUBE CHANNEL! http **************************************** *** Follow us on Twitter: twitter.com **************************************** *** Thanks for subscribing, watching, commenting and rating! Check out the latest game trailers, videos and news at gamerlive.tv