Limitations As Goals
There are other parameters and strategies for performance metric of information retrieval system. In particular, for web document retrieval, if the user's objectives are not clear, the precision and recall can't be optimized. As summarized by Lopresti,
- "Browsing is a comfortable and powerful paradigm (the serendipity effect).
- Search results don't have to be very good.
- Recall? Not important (as long as you get at least some good hits).
- Precision? Not important (as long as at least some of the hits on the first page you return are good)."
Read more about this topic: Precision And Recall
Famous quotes containing the words limitations as, limitations and/or goals:
“No man could bring himself to reveal his true character, and, above all, his true limitations as a citizen and a Christian, his true meannesses, his true imbecilities, to his friends, or even to his wife. Honest autobiography is therefore a contradiction in terms: the moment a man considers himself, even in petto, he tries to gild and fresco himself.”
—H.L. (Henry Lewis)
“No man could bring himself to reveal his true character, and, above all, his true limitations as a citizen and a Christian, his true meannesses, his true imbecilities, to his friends, or even to his wife. Honest autobiography is therefore a contradiction in terms: the moment a man considers himself, even in petto, he tries to gild and fresco himself.”
—H.L. (Henry Lewis)
“If people would forget about utopia! When rationalism destroyed heaven and decided to set it up here on earth, that most terrible of all goals entered human ambition. It was clear there’d be no end to what people would be made to suffer for it.”
—Nadine Gordimer (b. 1923)