Change detection model for sequential cause-and-effect relationships

Autor: Pu-Tai Yang, Jen-Hung Teng, Tony Cheng-Kui Huang
Rok vydání: 2018
Předmět:
Zdroj: Decision Support Systems. 106:30-43
ISSN: 0167-9236
DOI: 10.1016/j.dss.2017.11.007
Popis: Detecting changes of behaviors or events is crucial when updating existing knowledge in a dynamic business environment. Currently, data analysts can immediately collect data and easily access existing knowledge. However, that knowledge can also rapidly become outdated. This study discusses a form of knowledge, classifiable sequential patterns ( CSP s), defined as s → c , where s is a temporal sequence; c is a class label; and “→” is a sign which implies the sequential relationships between s (cause) and c (effect). If the CSP evolves into another, and the new knowledge is not updated, decision-makers would continue to work with the obsolete CSP . To the authors' knowledge, no study has addressed the topic of change mining in CSPs. To address this research gap, this study proposes a novel change-mining model, SeqClassChange , to identify changes in CSPs. Experiments were conducted with a real-world dataset to evaluate the proposed model.
Databáze: OpenAIRE