Earlier this year, I delivered the keynote address for a corporate event in Canada, I called the talk, “Spoiled and Deluded: Ugly Truths about Electronic Search.” I lamented how our happy experience with Google and online legal research has left us woefully unprepared (“spoiled”) for the extreme difficulty of search in e-discovery, then dashed a few misconceptions about the efficacy of searching ESI in accepted ways (“deluded”). Dear Reader, we need to be brutally frank about search; because in a world where the organization of information has gone the way of the typewriter and file room, effective, efficient search is something we cannot manage without.
Search has two non-exclusive ways to fail: your query will not retrieve the information you seek and your query will retrieve information you weren’t seeking. The measure of the first is called “recall,” and of the latter, “precision.” We want what we’re looking for (high recall) and only what we are looking for (high precision).
Recall and Precision aren’t friends. In e-discovery, they’re barely on speaking terms. Every time Recall has a tea party, Precision crashes with his biker buddies and breaks the dishes. Continue reading →