Sam Liebeskind

As a result, for many users to realistically participate in curation, tools for authoring classifiers should support rapid initialization . As end users often-times engage with internet content as a leisure activity, a successful tool should allow them to quickly and intuitively build an initial classifier with decent performance.

However, some types of engagement, such as votes and likes, come from controls designed to solicit feedback, while other types of engagement, such as clicks and watch time, are more implicit. In general both implicit and explicit engagement signals provide distinct and useful information to recommenders.

The essence of positioning is sacrifice. You must be willing to give up something in order to establish that unique position. Nyquil, the nighttime cold medicine, gave up the daytime market. The focus of most marketing operations is just the opposite. They look for ways to broaden their markets by line extension, by size and flavor proliferation,

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"Our work is the most valuable where we're creating a discourse that isn't just informing people, but actually getting them involved with the creation of good information — because they value good information themselves and are part of a community that values that," he said.