Saved in:
| Main Author: | |
|---|---|
| Format: | Recurso educativo Open Access |
| Language: | en |
| Published: |
1971
|
| Subjects: | |
| Online Access: | https://eric.ed.gov/?id=ED068140 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1867181567542034432 |
|---|---|
| author | Morse, Philip M. |
| author_facet | Morse, Philip M. Morse, Philip M. |
| collection | Education Resources Information Center |
| contents | Optimal Linear Ordering of Information Items. Morse, Philip M. Classification Computer Storage Devices Correlation Indexing Information Retrieval Information Storage Libraries Mathematical Applications Mathematical Models Search Strategies Efficient search of items in a store of information, such as books in a library, abstracts of articles, information in a computer data bank or the like, requires that the items most closely connected in content be close together, in order that a person looking for some particular information may concentrate his search on as small a part of the store as possible. The degree of connectedness between two items, I and J, can be expressed in terms of a correlation index N sub I J. Methods of estimating these indexes are discussed. Once the correlation indexes are known for each pair of items in the store, it is possible to assign a position X sub I for each item I, along a linear classification scale, such that the larger the N sub I J between items I and J the closer the two items are on the scale. Such a scale would indicate the optimal ordering of books on library shelves or of items in any other data collection. It also would provide means for assigning optimal subject descriptors for a computer-based information store. A procedure is described whereby the values of the X sub I's may be determined in terms of the N sub I J's. (Author) |
| format | Recurso educativo Open Access |
| id | eric_ED068140 |
| institution | ERIC Institute of Education Sciences |
| language | en |
| publishDate | 1971 |
| record_format | eric |
| spellingShingle | Optimal Linear Ordering of Information Items. Morse, Philip M. Classification Computer Storage Devices Correlation Indexing Information Retrieval Information Storage Libraries Mathematical Applications Mathematical Models Search Strategies Optimal Linear Ordering of Information Items. Morse, Philip M. Classification Computer Storage Devices Correlation Indexing Information Retrieval Information Storage Libraries Mathematical Applications Mathematical Models Search Strategies Efficient search of items in a store of information, such as books in a library, abstracts of articles, information in a computer data bank or the like, requires that the items most closely connected in content be close together, in order that a person looking for some particular information may concentrate his search on as small a part of the store as possible. The degree of connectedness between two items, I and J, can be expressed in terms of a correlation index N sub I J. Methods of estimating these indexes are discussed. Once the correlation indexes are known for each pair of items in the store, it is possible to assign a position X sub I for each item I, along a linear classification scale, such that the larger the N sub I J between items I and J the closer the two items are on the scale. Such a scale would indicate the optimal ordering of books on library shelves or of items in any other data collection. It also would provide means for assigning optimal subject descriptors for a computer-based information store. A procedure is described whereby the values of the X sub I's may be determined in terms of the N sub I J's. (Author) |
| title | Optimal Linear Ordering of Information Items. |
| topic | Classification Computer Storage Devices Correlation Indexing Information Retrieval Information Storage Libraries Mathematical Applications Mathematical Models Search Strategies |
| url | https://eric.ed.gov/?id=ED068140 |