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Applying machine learning in accounting research
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DOI：10.1016/j.eswa.2011.04.172.png)
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摘要
En 中文
Quite often, in order to derive meaningful insights, accounting researchers have to analyze large bodies of text. Usually, this is done manually by several human coders, which makes the process time consuming, expensive, and often neither replicable nor accurate. In an attempt to mitigate these problems, we perform a feasibility study investigating the applicability of computer-aided content analysis techniques onto the domain of accounting research. Krippendorff (1980) defines an algorithm's reliability as its stability, reproducibility and accuracy. Since in computer-aided text classification, which is inherently objective and repeatable, the first two requirements, stability and reproducibility, are not an issue, this paper focuses exclusively on the third requirement, the algorithm's accuracy. It is important to note that, although inaccurate classification results are completely worthless, it is surprising to see how few research papers actually mention the accuracy of the used classification methodology. After a survey of the available techniques, we perform an in depth analysis of the most promising one, LPU (Learning from Positive and Unlabelled), which turns out to have an F-value and accuracy of about 90%, which means that, given a random text, it has a 90% probability of classifying it correctly. (C) 2011 Elsevier Ltd. All rights reserved.
Keyword:
Data mining
Text classification
Accounting research
Artificial intelligence
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期刊
IF:
7.5
论文数:
3.0W
被引数:
10.2W
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