The past 15 years have seen the rise of the Cloud, along with rapid increase in Internet backbone traffic and more sophisticated cellular core networks. There are three different types of “Clouds:” (1) data center, (2) backbone IP network and (3) cellular core network, responsible for computation, storage, communication and network management. Now the functions of these three types of Clouds ar...

Datacenter operators and internet content providers require optical network programmability to efficiently interconnect distributed datacenters. This paper describes the requirements, applications and use cases for optical network programmability. Based on application scenarios, open northbound APIs with different levels of control and abstraction to address different network operator requireme...

Capacity Management, Decentralization, and Internal Pricing This paper studies the acquisition and subsequent utilization of production capacity in a decentralized firm comprised of multiple divisions. A central issue in our analysis is whether one or several of the divisions should be structured as investment centers with comprehensive responsibility for acquiring new capacity assets and maint...

In this study, daily maps of snow cover distribution and sea ice extent produced by NOAA’s interactive multisensor snow and ice mapping system (IMS) were validated using in situ snow depth data from observing stations obtained from NOAA’s National Climatic Data Center (NCDC) for calendar years 2006 to 2010. IMS provides daily maps of snow and sea ice extent within the Northern Hemisphere using ...

Ron Kohavi and Roger Longbotham, Online Experiments: Lessons Learned, IEEE Computer, Vol 40, issue 9, p. 103-105, Sept 2007. V Daniel A. Menasce, Virgilio A. F. Almeida "Challenges In Scaling E-Business Sites": Proc. 2000 Computer Measurement Group Conference, Orlando, FL, and December 10-15, 2000. "Cisco Cloud Computing Data Center Strategy, Architecture, and Solutions": 20...

IT outsourcing is considered as one of the major innovations in IT management. Since Kodak outsourced its IT operations and data centers to outside vendors in 1989, IT outsourcing has become commonplace in organizations around the world. Due to the extensive research and practice over the last two decades, organizations have not only developed much better understanding of the benefits, risks, a...

The increase of energy consumption and the related costs in large data centers has stimulated new researches on techniques to optimize the power consumption of the servers. In this paper we focus on systems that should process a peak workload consisting of different classes of applications. The objective is to implement a policy of load control which allows an efficient use of the power deploye...