In this paper we will analyze the relations between outbound email and inbound email traffic. We consider outbound traffic being sending email using the SMTP and inbound traffic being receiving or retrieving email using POP or IMAP. IMAP appears to be less used than POP. In corporate networks it is likely to have more SMTP than POP/IMAP traffic and in residential networks the situation is rever...

Because of the increasing density of the traffic flow in urban areas there is a need for optimal performance of traffic lights. In this paper we will describe an existing approach of reinforcement learning applied to the optimization of traffic light configurations, and introduce a new approach. Our approach uses implicit cooperation between traffic lights, letting cars take into account the tr...