Categorical DFs such as company, product, component, and status of bug report which are grouping the bug report in specific categories.
III.Textual DFs contain the main end-user request which is described as a text message in short or long description, e.g., title or description.
IV.Temporal DFs show the Date Time of reporting, assigning, solving and other events about the bug report. Since there are about 30%-60% duplicate bug reports in a STS [2,3], automatic duplicate bug report detection (ADBRD) is one of major problems of STSs. ADBRD needs artificial intelligence techniques like information retrieval, natural language processing, machine learning, text, and data mining. This study focuses on methods of ADBRD and review its methodologies, compare them, and suggest their potential usage [4].
Methodologies of Automatic Duplicate Bug Report DetectionThere are two major methodologies for automatic duplicate bug report detection (ADBRD):