Since researchers, administrators and grant-awarding bodies all take note of which work has got through this filtering mechanism, the competition to publish in the best journals is intense, and the system becomes self-reinforcing, increasing the value of those journals still further.

ECONOMIST: Academic journals face a radical shake-up

What it needs is a mechanism for filtering content based on social group input that you can customize.

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Because the transforming and the filtering are done optically, this mechanism for pattern recognition is fast, allowing an image to be tested for the presence of a target in a single step.

ECONOMIST: Optical recognition