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:
“Much of what contrives to create critical moments in parenting stems from a fundamental misunderstanding as to what the child is capable of at any given age. If a parent misjudges a child’s limitations as well as his own abilities, the potential exists for unreasonable expectations, frustration, disappointment and an unrealistic belief that what the child really needs is to be punished.”
—Lawrence Balter (20th century)
“... art transcends its limitations only by staying within them.”
—Flannery O’Connor (1925–1964)
“Our ego ideal is precious to us because it repairs a loss of our earlier childhood, the loss of our image of self as perfect and whole, the loss of a major portion of our infantile, limitless, ain’t-I-wonderful narcissism which we had to give up in the face of compelling reality. Modified and reshaped into ethical goals and moral standards and a vision of what at our finest we might be, our dream of perfection lives on—our lost narcissism lives on—in our ego ideal.”
—Judith Viorst (20th century)