ALL libraries (COBIB.SI union bibliographic/catalogue database)
-
Chi-square-based scoring function for categorization of MEDLINE citationsKastrin, Andrej ; Peterlin, Borut, 1963- ; Hristovski, Dimitar, 1964-Objectives: Text categorization has been used in biomedical informatics for identifying documents containing relevant topics of interest. We developed a simple method that uses a chi-square-based ... scoring function to determine the likelihood of MEDLINE(R) citations containing genetic relevant topic. Methods:Our procedure requires construction of a genetic and a nongenetic domain document corpus. We used MeSH(R) descriptors assigned to MEDLINE citations for this categorization task. We compared frequencies of MeSH descriptors between two corpora applying chi-square test. A MeSH descriptor was considered to be a positive indicator if its relative observed frequency in the genetic domain corpus was greater than its relative observed frequency in the nongenetic domain corpus. The output of the proposed method is a list of scores for all the citations, with the highest score given to those citations containing MeSH descriptors typical for the genetic domain. Results:Validation was done on a set of 734 manually annotated MEDLINE citations. It achieved predictive accuracy of 0.87 with 0.69 recall and 0.64 precision. We evalu-ated the method by comparing it to three machine-learning algorithms (support vector machines, decision trees, naive Bayes). Although the differences were not statistically significantly different, results showedthat our chi-square scoring performs as good as compared machine-learning algorithms. Conclusions: We suggest that the chi-square scoring is an effective solution to help categorize MEDLINE citations. The algorithm is implemented in the BITOLA literature-based discovery support system as a preprocessor for gene symbol disambiguation process.Source: Methods of information in medicine = Methodik der Information in der Medizin. - ISSN 0026-1270 (Letn. 49, št. 2, 2010, str. 371-378)Type of material - article, component partPublish date - 2010Language - englishCOBISS.SI-ID - 26772441
source: Methods of information in medicine = Methodik der Information in der Medizin. - ISSN 0026-1270 (Letn. 49, št. 2, 2010, str. 371-378)
Shelf entry
Permalink
- URL:
Impact factor
Access to the JCR database is permitted only to users from Slovenia. Your current IP address is not on the list of IP addresses with access permission, and authentication with the relevant AAI accout is required.
Year | Impact factor | Edition | Category | Classification | ||||
---|---|---|---|---|---|---|---|---|
JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Select the library membership card:
If the library membership card is not in the list,
add a new one.
DRS, in which the journal is indexed
Database name | Field | Year |
---|
Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
---|---|
Kastrin, Andrej | 26484 |
Peterlin, Borut, 1963- | 10458 |
Hristovski, Dimitar, 1964- | 11373 |
Source: Personal bibliographies
and: SICRIS
Select pickup location:
Material pickup by post
Delivery address:
Address is missing from the member's data.
The address retrieval service is currently unavailable, please try again.
By clicking the "OK" button, you will confirm the pickup location selected above and complete the reservation process.
By clicking the "OK" button, you will confirm the above pickup location and delivery address, and complete the reservation process.
By clicking the "OK" button, you will confirm the address selected above and complete the reservation process.
Notification
Automatic login and reservation service currently not available. You can reserve the material on the Biblos portal or try again here later.
Subject headings in COBISS General List of Subject Headings
Select pickup location
The material from the parent unit is free. If the material is delivered to the pickup location from another unit, the library may charge you for this service.
Pickup location | Material status | Reservation |
---|
Reservation in progress
Please wait a moment.
Reservation was successful.
Reservation failed.
Reservation...
Membership card:
Pickup location: