Author Archives: admin
Facebook: a rolling down ARPU?
The third quarter results of Facebook in 2013 are out (see the press release). The good news (for Facebook) are the increase of both advertising revenues ($1.80 billion, a 66% increase from the same quarter last year) and users (+25% year-over-year … Continue reading
Call centers: wait, wait, and wait again...
We all know the often frustrating experience of interacting with a call center. Waiting for an operator to answer can take an appreciable portion of our time. And, while in most cases the chance to talk to an operator comes … Continue reading
Discovering communities in a network through network clustering
Some members in a network (be it a physical or a virtual one) may have a stronger relationship with some of the other members. Inside a network there are communities, whose members have stronger connections inside their community rather than … Continue reading
The role of customers in data breach events and security investments
In the most established model to evaluate the effectiveness of security investments by Gordon and Loeb, the probability of data breaches is represented as a function of investments only. The more the company invests to protect the data of its … Continue reading
Call for papers - DRCN 2014 (Design of Reliable Communication Networks)
DRCN is a well-established annual forum for scientists, engineers, designers and planners from industry, government and academia who have interests in the reliability and availability of communication networks and services. The conference covers topics
Some photos from UKSim 2013 in Cambridge
This year I've attended the annual UKSim conference in Cambridge. UKSim is the flagship conference of the UK Simulation Society and is additionally sponsored by a number of simulation societies as well as the local chapter of IEEE Computer Society. … Continue reading
If the provider has to compensate for data breaches...
....revenues can be the right basis to do it. Proposals for holding the service provider liable for damages suffered by its customers due to data breaches have been submitted in the past. In our papers "Liability for Data Breaches: A … Continue reading
In the beginning it was the Impact Factor
When I started my career as a researcher (very late 80's...), I was told to publish on international journals of good reputation. And in those days good reputation basically meant journals with an Impact Factor as high as possible (i.e., … Continue reading
On credit risk analysis
Our paper "Solution Space Size in Credit Risk Simulation" on credit risk analysis has been presented at the 15th International Conference on Computer Modelling and Simulation UKSim 2013, held in Cambridge on April 9-12, 2013. You can download the presentation here
Some photos from DRCN 2013
Last week I attended the 9th International Conference on Design of Reliable Communication Networks (DRCN 2013) in Budapest, Hungary. In addition to presenting my own paper on cloud availability (you can download it here, while you find the presentation here), it … Continue reading
