Use of Medical Subject Headings (MeSH) in Portuguese for categorizing web-based healthcare content

Introduction: Internet users are increasingly using the worldwide web to search for information relating to their health. This situation makes it necessary to create specialized tools capable of supporting users in their searches. Objective: To apply and compare strategies that were developed to investigate the use of the Portuguese version of Medical Subject Headings (MeSH) for constructing an automated classifier for Brazilian Portuguese-language web-based content within or outside of the field of healthcare, focusing on the lay public. Methods: 3658 Brazilian web pages were used to train the classifier and 606 Brazilian web pages were used to validate it. The strategies proposed were constructed using content-based vector methods for text classification, such that Naive Bayes was used for the task of classifying vector patterns with characteristics obtained through the proposed strategies. Results: A strategy named InDeCS was developed specifically to adapt MeSH for the problem that was put forward. This approach achieved better accuracy for this pattern classification task (0.94 sensitivity, specificity and area under the ROC curve). Conclusions: Because of the significant results achieved by InDeCS, this tool has been successfully applied to the Brazilian healthcare search portal known as Busca Saude. Furthermore, it could be shown that MeSH presents important results when used for the task of classifying web-based content focusing on the lay public. It was also possible to show from this study that MeSH was able to map out mutable non-deterministic characteristics of the web. (c) 2010 Elsevier Inc. All rights reserved.

CINAHL-Subject Headings

How to search CINAHL using their thesaurus

Attaching numbering to headings in Word 2010

In a long document such as a thesis you'll often want to attach a numbering system to your headings. This will get Word to automatically apply numbering as you add and removing headings from the document. You'll also be able to use them for cross-referencing purposes.

Subject headings for the aeronautical index /

Mimeographed.

Library of Congress subject headings /

Commonly referred to as: The red book.

Medical subject headings.

Print ceases at v.48 (2007), then becomes online only.

Subject headings used in the catalogs of the United States Atomic Energy Commission.

Mode of access: Internet.