As a gathering place on the Internet, Facebook’s communities and the community demographics developed therein can give marketers surgical precision as they find an arena for their ads. Fans of brands that are vulnerable, either because of an...
This is a valuable technique, but it clearly lacks in precision. However, even if they respond, their answer may not be accurate or complete if they can't recall where they heard of you, or if they heard of you through multiple channels.
However, as the market grows more savvy, I would suspect that the strategies and tactics that are currently required to be competitive in the U.S.search space will start having to be employed more often and with greater precision in the currently...
But this has to be done in an efficient manner balancing precision and recall and this has to be done for all 4 filters. No longer do you have to weed through hundreds or thousands of search results to find a discussion forum or product specs for...
Smaller but focused databases, can potentially offer more precise results (higher precision, lower recall). So, in a sense it's not only putting it to Google but to Yahoo, Ask and other general purpose web engines.
True in theory but as databases grow larger and larger, this will become more and more (increased recall lowers precision) of a challenge given the fact that very few people take advantage of the tools that are already available that can...
One way is to measure "precision" and "recall," the most common measures of search performance. Although useful, the next essay also demonstrates the limitations of precision and recall as really good metrics.
Recall: Related to precision, this is the degree in which a search engine returns all the matching documents in a collection. Precision: The degree in which a search engine lists documents matching a query.
