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Wang, Jiachen; Zhang, Yuejin; Li, Haifeng
Procedia computer science, 2023, 2023-00-00, Letnik: 221Journal Article
Disclosure is the soul of supervision, the bridge between companies and investors, and can help public fully understand companies’ business operations. The disclosure quality of listed companies’ annual reports affects security market efficiency and investor rights protection. Currently, there are issues including but not limited to contradictory information and avoidance of important problems. Moreover, the qualities of disclosure reports from different companies vary greatly. This paper is to focus on annual reports of listed companies, dividing them into two categories based on the assessment results of disclosure by the Shenzhen Stock Exchange, and conducting the research on textual characteristics. Firstly, three characteristic indicators, tone, readability, and file size of each annual report are analyzed and compared, with validation. To explore the impact of characteristic indicators on text classification, these three indicators are introduced into text models, constructing comprehensive models. To achieve dimension reduction for training models, feature selection is performed by using Chi-square statistics. Different lengths keywords dictionaries are constructed. In conclusion, prediction performance of classifier models can be improved or maintained after introducing indicators, with the random forest model having the best improvement after introduction of indicators.
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Dostop do baze podatkov JCR je dovoljen samo uporabnikom iz Slovenije. Vaš trenutni IP-naslov ni na seznamu dovoljenih za dostop, zato je potrebna avtentikacija z ustreznim računom AAI.
Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
Baze podatkov, v katerih je revija indeksirana
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Vir: Osebne bibliografije
in: SICRIS
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