Behavior-based Electronic Essay Assessment Fraud Detection
- Author(s):
- Deane, Paul; Choi, Ikkyu; Hao, Jiangang; Zhang, Mo
- Patent Issued:
- Apr 18, 2023
- Patent Number:
- 11,630,896
- Source:
- ETS Patent
- Document Type:
- Patent
- Family ID:
- 85991187
- Subject/Key Words:
- Patent, Active Patent, Data Collection, Biometric Identification, Keystroke Log, Writing Assessment, Testing Fraud, Cheating, Machine Learning
Abstract
Biometric keystroke measure data derived from a computer-implemented long form examination taken by an examinee is received. Features are the extracted from the biometric keystroke measure data for the examinee. A similarity value is then determined, using one or more of a direct distance approach or a machine learning approach, for the extracted features relative to features extracted from biometric keystroke measure data derived from each of a plurality of other examinees while taking the long form examination. At least one of the determined similarity values is then identified having a value above a pre-defined threshold. The pre-defined threshold indicates a likelihood of the examinee being the same as one of the other examinees. Data can then be provided that characterizes the identification. Related apparatus, systems, techniques and articles are also described.