Guzmán Hernández

Learn More
We present two secure real-time video conferencing solutions with JPEG coding using a cipher engine based on the Blowfish algorithm. One of these solutions is developed from Java media framework (JMF). In this case, our solution consists of encrypting frames coded with JPEG that are later encapsulated in packets of the RTP protocol (H. Schulzrinne et al.,(More)
The use of alternative measures to evaluate classifier performance is gaining attention, specially for imbalanced problems. However, the use of these measures in the classifier design process is still unsolved. In this work we propose a classifier designed specifically to optimize one of these alternative measures, namely, the so-called F-measure.(More)
  • 1