文章基本信息

标题：Semi-Automatic Labeling of Training Data Sets in Text Classification
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作者：Nayereh Ghahreman ; Ahmad Baraani Dastjerdi
期刊名称：Computer and Information Science
印刷版ISSN：1913-8989
电子版ISSN：1913-8997
出版年度：2011
卷号：4
期号：6
页码：48
DOI：10.5539/cis.v4n6p48
出版社：Canadian Center of Science and Education
摘要：Web includes digital libraries and billions of text documents. A fast and simple search through this sizeable set is important for users and researchers. Since manual or rule based document classification is a difficult, time consuming process, automatic classification systems are absolutely needed. Automatic text classification systems demand extensive and proper training data sets. To provide these data sets, usually, numerous unlabeled documents are labeled manually by experts. Manual labeling of documents is a difficult and time consuming process. Moreover, in manual labeling, due to human exhaustion and carelessness, there is the possibility of mistakes. In this study, semi-automatic creation of training data set has been proposed in a way that only a small percentage of this extensive set’s documents is labeled manually and the remaining percentage is done automatically. Results show that by labeling only ten percent of the training set, remaining documents can be automatically labeled with 98 percent of accuracy. It is worth mentioning that this reduction in accuracy only occurs in standard data sets, while for large practical data sets, this reduction is trivial compared to the accuracy reduction resulted by human exhaustion and carelessness.