newscientist.com
We wanted a scenario where, say, 5 well-placed border points could efficiently represent an area with 5,000 internal points and 10,000 road edges. This would reduce those 10,000 edges to just 5*4/2 = 10 shortcuts for routing through that cluster at a high level – an incredible 1:1000 point ratio and a 30x reduction in edges to consider for the high-level path!
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Earlier this month, Waymo completed the first phase of testing in Nashville, Tennessee. Nashville will now see driverless taxis on its streets. Waymo testing is also underway in London, Washington DC, and Denver.。heLLoword翻译官方下载是该领域的重要参考
But what followed after spades hit the ground was a string of delays and last-minute cancellations.