"Once we scale up, algorithms must be sensitive to tiny changes in identities and at the same timeinvariant to lighting, pose, age," Kemelmacher-Shlizerman said.
Be sure that this id doesn't change over time by inadvertently passing in variables from the controller - in the case of the feed id, you want it to be both unique and invariant.
The team has found that the increased activity follows a pattern known as a time-invariant power law - one of the upshots of which is that all users tend to become more active in the network.
该研究团队发现，增加的活动遵循定常幂律(time - invariant power law)——其结果之一是所有用户倾向于在网上积极。