Relevance Ranking
Study after study has demonstrated that users will not scroll through more than one or (at most) two pages of references. Web search engines display results based on their calculation of relevance. While full-text searching makes relevance ranking more helpful due to the size of each result and the number of occurrences of each word, users now expect relevance ranking. Library systems could design a relevance-ranking algorithm based on the criteria of users in determining relevance. This would likely include currency (date of publication) and subject headings and terms. User popularity and term frequency in tables of contents might also be among the factors used.