Profit-seeking entrepreneurs could take a few tips from billionaire software engineer-turned-philanthropist Bill Gates.

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While a keyword job search for "certified public accountant" might turn up ads seeking a small-business chief financial officer who is also a CPA, semantic-search software would intuit that the user is looking for accounting jobs and list only those openings.

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Infosys, a software-services company, is seeking approval to raise up to 100 times that amount.

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With private clouds, enterprises maintain all the equipment and software, while seeking to offer resources through a virtualized service layer.

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And in the meantime he's been spending his days on a hobby that periodically stuns the computer security world: seeking out cracks in the source code of Apple's iPhone, a device with more software restrictions than practically any computer on the market, and utterly obliterating its defenses against hackers.

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The maker of the bike-share software, PBSC Urban Solutions, Inc. in Montreal, didn't return a message seeking comment.

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