Evaluating Performance of an Adult Pornography Classifier for Child Sexual Abuse Detection
This work addresses the need for efficient forensic tools in child sexual abuse detection, but it is incremental as it focuses on benchmarking an existing classifier rather than developing new methods.
The study evaluated the performance of an adult pornography classifier for child sexual abuse detection by testing it across different hardware and software configurations, finding that Ubuntu is 5 times faster on CPU and 2 times faster on GPU than Windows 10, and GPU-based machines are 7 to 8 times faster than CPU-based ones.
The information technology revolution has facilitated reaching pornographic material for everyone, including minors who are the most vulnerable in case they were abused. Accuracy and time performance are features desired by forensic tools oriented to child sexual abuse detection, whose main components may rely on image or video classifiers. In this paper, we identify which are the hardware and software requirements that may affect the performance of a forensic tool. We evaluated the adult porn classifier proposed by Yahoo, based on Deep Learning, into two different OS and four Hardware configurations, with two and four different CPU and GPU, respectively. The classification speed on Ubuntu Operating System is $~5$ and $~2$ times faster than on Windows 10, when a CPU and GPU are used, respectively. We demonstrate the superiority of a GPU-based machine rather than a CPU-based one, being $7$ to $8$ times faster. Finally, we prove that the upward and downward interpolation process conducted while resizing the input images do not influence the performance of the selected prediction model.