一种基于桶的加密视频检测数据预处理方法

Waleed Afandi, S. M. A. H. Bukhari, M. U. Khan, Tahir Maqsood, S. Khan
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引用次数: 0

摘要

随着视频流媒体平台数量的增加,与非法和不适当内容流相关的风险因素呈指数级增长。因此,监测这些内容是必不可少的。对于加密视频的分类,人们进行了大量的研究。然而,大多数现有的技术只是将原始交通数据传递到分类模型中,这是一种无效的模型训练方法。提出了一种基于桶的网络流量视频识别数据预处理技术。然后,将桶状流量与经过微调的基于word2vec的神经网络结合起来,产生有效的加密视频分类器。采用不同数量和尺寸的桶进行实验,以确定最佳配置。此外,以往的研究忽略了概念漂移现象,这降低了模型的有效性。本文还比较了所提出的技术和以前的技术的概念漂移的严重程度。结果表明,即使经过20天的训练,该模型也能以81%的总体准确率预测视频的新样本。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A Bucket-Based Data Pre-Processing Method for Encrypted Video Detection
As the number of video streaming platforms is growing, the risk factor associated with illegal and inappropriate content streaming is increasing exponentially. Therefore, mon- itoring such content is essential. Many researches have been conducted on classifying encrypted videos. However, most existing techniques only pass raw traffic data into clas- sification models, which is an ineffective way of training a model. This research proposes a bucket-based data pre-processing technique for a video identification in network traffic. The bucketed traffic is then incorporated with a fine-tuned word2vec-based neural net- work to produce an effective encrypted video classifier. Experiments are carried out with different numbers and sizes of buckets to determine the best configuration. Furthermore, previous research has overlooked the phenomenon of concept drift, which reduces the effec- tiveness of a model. This paper also compares the severity of concept drift on the proposed and previous technique. The results indicate that the model can predict new samples of videos with an overall accuracy of 81% even after 20 days of training.
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