Search results
Results from the WOW.Com Content Network
Relevance is the connection between topics that makes one useful for dealing with the other. Relevance is studied in many different fields, including cognitive science, logic, and library and information science. Epistemology studies it in general, and different theories of knowledge have different implications for what is considered relevant.
Once relevance levels have been assigned to the retrieved results, information retrieval performance measures can be used to assess the quality of a retrieval system's output. In contrast to this focus solely on topical relevance, the information science community has emphasized user studies that consider user relevance. [3]
Importance is a property of entities that make a difference in the world. [1] [2] So for something to be important, it has to impact the world around it.For example, World War II was an important event in history both because of the suffering it caused and because of the long-term political changes it affected. [3]
In a classification task, the precision for a class is the number of true positives (i.e. the number of items correctly labelled as belonging to the positive class) divided by the total number of elements labelled as belonging to the positive class (i.e. the sum of true positives and false positives, which are items incorrectly labelled as belonging to the class).
The most important factor in determining a system's effectiveness for users is the overall relevance of results retrieved in response to a query. [1] The success of an IR system may be judged by a range of criteria including relevance, speed, user satisfaction, usability, efficiency and reliability. [2]
Directness of relevance is an important measure and consideration. A careful review of the actual statement(s) in the content is required to determine this. Keep in mind that in many cases (depending on the degree of expertise and objectivity of the source with respect to the statement) the "fact" is information about what the source's "take ...
The Year Without a Santa Claus, a Christmas special from Jules Bass and Arthur Rankin, Jr., turns 50 this December. The beloved special was adapted from the book of the same name by Phyllis ...
Relevance theory also attempts to explain figurative language such as hyperbole, metaphor and irony. Critics have stated that relevance, in the specialised sense used in this theory, is not defined well enough to be measured. Other criticisms include that the theory is too reductionist to account for the large variety of pragmatic phenomena.