The amount of content available for consumption online is increasing tremendously. This make the job of recommender systems more important, and at the same time, more demanding. Context-aware recommender systems might be a solution to this problem. This work set out to discover user contexts dynamically by collecting contextual information from user actions and perform cluster analysis on the ...

Over the last decade, power consumption and energy efficiency have arisen as important performance metrics for data center computing systems hosting cloud services. The incentives for reducing power consumption are several, and often span economic, technological, and environmental dimensions. Because of the vast number of computers currently employed in data centers, the economy of scale dictates ...

We create 2.5 quintillion bytes of data every day. A whole 90% of the world’s data was created in the last two years.1 One contribution to this massive bulk of data is Twitter: Twitter users create 500 million tweets a day,2 which fact has greatly impacted social science [24] and journalism [39]. Network analysis is important in social science [6], but with so much data there is a real danger of ...

Nowadays people have many different personal devices, like laptops and tablets, that they use to access and process data. Very often it is desirable to access and process the same data on different devices without having to copy it from one device to another. Commercial cloud services provide good services for achieving this, but recent events, such as the Snowdon disclosures, have illustrated some ...

Even with today's technologies many tasks relies on humans to be completed correctly. Engineers must monitor steps in large chains of operations, and verify the results before the next process is allowed to continue. In many such systems, a lot of useful data passes by without ever been stored for efficient future usage. Even though some operations must be verified by an experienced human eye, ...

Genomics is the study of the genomes of organisms. Metagenomics is the study of environmental genomic samples. For both genomics and metagenomics DNA sequencing, and the analysis of these sequences, is an important tool. This analysis is done through integration of sequence data with existing meta-data collections. Genomics is the study of the genomes of organisms, and involves cultivating organisms ...

The domain of sports analysis is a huge field in sports science. Several different computer systems are available for doing analysis, both expensive and less expensive. Some specialize in specific sports such as football or ice hockey, while others are sports agnostic. However, a common property of most of these systems is that they try to give in-depth and detailed analysis of the sport in question. ...

Robotics can be utilized more in emergency services, and a software platform for controlling many semi-autonomous can make it more alluring to use robots in this area. Using semi-autonomous robots can allow personnel to issue robots to perform complex task, without the need of extensive training, and it allows one person to control many robots alone. One challenging aspect of using robots in emergency ...

The Internet has become a natural medium for finding information and resources, and has probably become the most important tool in education and e-learning as well. Many educational institutions use on-line systems for uploading, creating and publishing educational content to students and pupils. Extended use of multimedia files, video, audio and image, as a part of the content is a growing trend ...

Accessing route information should be easy. Today, most collective transport companies distribute timeta- bles online as electronic documents and in paper format. These solutions are outdated and cumbersome to use. However, systems have been built to make the task of finding route information easy, and to replace these formats. Most of these systems, still, have limitations. They rely on users knowing ...