ENHANCING EFFICIENCY OF BALTIC RETAIL CONTACT CENTERS

assessment of the efficiency of s.p.g.c refineries using network dea

data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...

Enhancing application robustness in cloud data centers

We propose OX, a runtime system that uses application-level availability constraints and application topologies discovered on the fly to enhance resilience to infrastructure anomalies for cloud applications. OX allows application owners to specify groups of highly available virtual machines, following component roles and replication semantics. To discover application topologies, OX monitors net...

Overview of Data Centers Energy Efficiency Evolution

Data centers are becoming one of the major consumers of energy in modern economies accounting for a measurable fraction of the total energy consumption. Furthermore, the energy consumption of data centers has a high growth rate with the energy consumption doubling about every six years. With large data centers consuming several MW of power or even 10’s of MW energy efficiency and energy consump...

Evolving Enterprise & Contact Centers with WebRTC

Electrical Efficiency Modeling for Data Centers

Conventional models for estimating electrical efficiency of data centers are grossly inaccurate for real-world installations. Estimates of electrical losses are typically made by summing the inefficiencies of various electrical devices, such as power and cooling equipment. This paper shows that the values commonly used for estimating equipment inefficiency are quite inaccurate. A simple, more a...