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Among the top 500 private enterprises, 321 companies have their research and development personnel accounting for over 3 percent of their total employees.

Amazon’s new Kindle Fire tablet come with a free Amazon Prime trial.

Amazon’s decision to branch out into physical retail raised some eyebrows when rumors about the Seattle store first emerged. This was, after all, the company that caused many traditional retailers (booksellers in particular) to go belly up. But the company’s bullish attitude toward the physical bookstores suggests that the experiment was a success, in Amazon’s eyes. In addition to helping sell books, the stores also serve as showrooms for Fire devices — allowing Amazon to compete with Apple and Microsoft on the same playing field.

Amazon’s special messages to customers on its home page are usually very upbeat, touting the latest products and services from the company in positive tones.

Amazon’s general manager of artificial intelligence, Matt Wood, disputed the findings and noted that the study focuses on facial analysis technology which is different from facial recognition. Facial analysis is used to search a database of photos for specific attributes. Say, for example, an advertisement designer wanted to search a catalog of stock photos for a woman wearing glasses and smiling. That’s where facial analysis comes in.