arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2103.07274cs.CReess.SP
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基于机器学习算法的多模态EEG和击键动力学生物识别系统

Multimodal EEG and Keystroke Dynamics Based Biometric System Using Machine Learning Algorithms

Arafat Rahman, Muhammad E. H. Chowdhury, Amith Khandakar, Serkan Kiranyaz, Kh Shahriya Zaman, Mamun Bin Ibne Reaz, Mohammad Tariqul Islam, Muhammad Abdul Kadir

摘要:

随着技术的快速进步,不同的生物特征用户认证和识别系统不断涌现。传统的生物识别系统,如人脸、指纹、虹膜识别、指纹动态等,容易受到网络攻击,并存在不同的缺点。基于脑电图(EEG)的认证在克服这些限制方面显示出希望。然而,基于EEG的认证由于在不同的心理和生理条件下的信号变化而不太准确。另一方面,基于动态的识别提供了高准确性,但遭受不同的欺骗攻击。为了克服这些挑战,我们提出了一种新的多模态生物识别系统结合EEG和脑电动力学。首先,通过在10个不同的会话中采集来自10个用户的脑电动力学和EEG信号来创建数据集,每个用户500次试验。从EEG信号中提取不同的统计、时域和频域特征并进行排序,从脑电动力学中提取关键特征。针对两种不同的分类策略-个性化和广义,对不同的分类器进行了训练、验证和测试。结果表明,非常高的准确性,可以实现在广义和个性化的情况下,脑电和脑电动力学的组合。极端梯度提升(XGBoost)和随机森林分类器的识别和认证准确率分别为99.80%和99.68%,它们以显著的幅度(约5%)优于单个模态。我们还开发了一种基于二进制模板匹配的算法,该算法的准确率为93.64%,快了6倍。所提出的方法对于任何类型的生物特征认证都是安全可靠的。

英文摘要:

With the rapid advancement of technology, different biometric user authentication, and identification systems are emerging. Traditional biometric systems like face, fingerprint, and iris recognition, keystroke dynamics, etc. are prone to cyber-attacks and suffer from different disadvantages. Electroencephalography (EEG) based authentication has shown promise in overcoming these limitations. However, EEG-based authentication is less accurate due to signal variability at different psychological and physiological conditions. On the other hand, keystroke dynamics-based identification offers high accuracy but suffers from different spoofing attacks. To overcome these challenges, we propose a novel multimodal biometric system combining EEG and keystroke dynamics. Firstly, a dataset was created by acquiring both keystroke dynamics and EEG signals from 10 users with 500 trials per user at 10 different sessions. Different statistical, time, and frequency domain features were extracted and ranked from the EEG signals and key features were extracted from the keystroke dynamics. Different classifiers were trained, validated, and tested for both individual and combined modalities for two different classification strategies - personalized and generalized. Results show that very high accuracy can be achieved both in generalized and personalized cases for the combination of EEG and keystroke dynamics. The identification and authentication accuracies were found to be 99.80% and 99.68% for Extreme Gradient Boosting (XGBoost) and Random Forest classifiers, respectively which outperform the individual modalities with a significant margin (around 5 percent). We also developed a binary template matching-based algorithm, which gives 93.64% accuracy 6X faster. The proposed method is secured and reliable for any kind of biometric authentication.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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