Research in ‘trust’ in automation has gained momentum and ‘trust’ has been identified as playing an essential role for implementing effective work-centered computer systems (Hoffman, Lee, Woods, Shadbolt, Miller & Bradshaw, 2009). In a socio-technical work system, the automation handles the majority of an algorithmically-intense workload but the human is generally a final decision-maker. Theref...

Nowadays cooperative web caching has shown to improve the performance in Web document access. That is why the interest in works related to web caching architectures designs has been increasing. This paper discusses and compares performances of some cooperative web caching designs (hierarchy, mesh, hybrid) using different document validation/replication methods (TTL, invalidation, pushing, etc)....

Automatic tuning has been an elusive goal for database technology for a long time and is becoming a pressing issue for modern E-services. This paper reviews and assesses the advances that have been made on this important subject during the last ten years. A major conclusion is that self-tuning database technology should be based on the paradigm of a feedback control loop, but is also bound to b...