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Data Source Handbook.pdf
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文件大小: 651kb
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上传时间: 2019-06-24
详细说明： A lot of new sources of free, public data have emerged over the last few years, and this guide covers some of the most useful. It’s aimed at developers looking for information to supplement their own tools or services. There are obviously a lot of APIs out there, so to narrow it down to the most useful, the ones in this guide have t o meet these standards: Free or self-service signup Traditional commercial data agreements are designed for enterprise companies, so they’re very costly and time-consuming to experiment with. APIs that are either free or have a simple sign-up process make it a lot easier to get started. Broad coverage Quite a few startups build infrastructure and then hope that users will populate it with data. Most of the time, this doesn’t happen, so you end up with APIs that look promising on the surface but actually contain very little useful data. Online API or downloadable bulk data Most of us now develop in the web world, so anything else requires a complex installation process that makes it much harder to try out. Linked to outside entities There has to be some way to look up information that ties the service’s data to the outside world. For example, the Twitter and Facebook APIs don’t qualify because you can only find users by internal identifiers, whereas LinkedIn does because you can look up accounts by their real-world names and locations.
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