Optimizing the Dynamic Distribution of Data-stream for High Speed Communications

The performances of high-speed network communications frequently rest with the distribution of data-stream. In this paper, a dynamic data-stream balancing architecture based on link information is introduced and discussed firstly. Then the algorithms for simultaneously acquiring the passing nodes and links of a path between any two source-destination nodes rapidly, as well as a dynamic data-stream distribution planning are proposed. Some related topics such as data fragment disposal, fair service, etc. are further studied and discussed. Besides, the performance and efficiency of proposed algorithms, especially for fair service and convergence, are evaluated through a demonstration with regard to the rate of bandwidth utilization. Hoping the discussion presented here can be helpful to application developers in selecting an effective strategy for planning the distribution of data-stream.

An improved method for discovering link criticality in transport networks

Quantitatively assessing the importance or criticality of each link in a network is of practical value to operators, as that can help them to increase the network's resilience, provide more efficient services, or improve some other aspect of the service. Betweenness is a graph-theoretical measure of centrality that can be applied to communication networks to evaluate link importance. However, as we illustrate in this paper, the basic definition of betweenness centrality produces inaccurate estimations as it does not take into account some aspects relevant to networking, such as the heterogeneity in link capacity or the difference between node-pairs in their contribution to the total traffic. A new algorithm for discovering link centrality in transport networks is proposed in this paper. It requires only static or semi-static network and topology attributes, and yet produces estimations of good accuracy, as verified through extensive simulations. Its potential value is demonstrated by an example application. In the example, the simple shortest-path routing algorithm is improved in such a way that it outperforms other more advanced algorithms in terms of blocking ratio

Data Visualisation

Short note and link on data visualisation for students at all levels

e-Research Methods Theme 6 Collecting Data

In this theme you will work through a series of texts and activities designed to help you think carefully about your approach to collecting the data for your research project.

e-Research Methods Theme 7 Data Analysis

In this theme you will work through a series of texts and activities and reflect on your view of research and the process of analysis of data and information. Most activities are supported by textual or audio material and are there to stimulate your thinking in a given area. The purpose of this theme is to help you gain a general overview of the main approaches to research design. Although the theme comprises two main sections, one on quantitative research and the other on qualitative research, this is purely to guide your study. The two approaches may be viewed as being part of a continuum with many research studies now incorporating elements of both styles. Eventually you will need to choose a research approach or methodology that will be practical, relevant, appropriate, ethical, of good quality and effective for the research idea or question that you have in mind.

jhofman's data and networks Bookmarks on Delicious

A list of many network datasets

Analysing Qualitative Data

Slides and Handouts for class introducing some of the concepts associated with the analysis of qualitative data

Social Computing Data Repository

Social Computing Data Repository hosts data from a collection of many different social media sites, most of which have blogging capacity. Some of the prominent social media sites included in this repository are BlogCatalog, Twitter, MyBlogLog, Digg, StumbleUpon, del.icio.us, MySpace, LiveJournal, The Unofficial Apple Weblog (TUAW), Reddit, etc. The repository contains various facets of blog data including blog site metadata like, user defined tags, predefined categories, blog site description; blog post level metadata like, user defined tags, date and time of posting; blog posts; blog post mood (which is defined as the blogger's emotions when (s)he wrote the blog post); blogger name; blog post comments; and blogger social network.

Group 15 (Snav) - The Data Protection Act 1998

An online tutorial outlining the definitions and principles of the Data Protection Act. Contains questions on scenarios which allow the user to test their knowledge, as well as a downloadable space-shooter game which gets the user to answer Data Protection Act questions.

Getting Started with Open Data II

Overview of Linked Data in presentation to Royal Academy of Engineering

Open Government Data

Linked Open data – a platform for modern science, engineering, education and business. In the more recent talk, Sir Nigel Shadbolt speaks about "The Value of Openess - The Open Data Institute and Publically Funded Open Data" during the Natural History Museum of London Informatics Horizons event.

Data Protection Act links to film, slides, quesions; overview notes

Published on Jun 7, 2012 by icocomms This ICO training video helps answer questions about the Data Protection Act, its impact on the working environment and how to handle and protect people's information. (Produced by Central Office of Information, Crown Copyright 2006)

COMP1205 Data protection and security

Published on Jun 7, 2012 by icocomms This ICO training video helps answer questions about the Data Protection Act, its impact on the working environment and how to handle and protect people's information. (Produced by Central Office of Information, Crown Copyright 2006)

An Animating Spark: Mundane Computing and the Web of Data

Network connectivity is reaching more and more into the physical world. This is potentially transformative – allowing every object and service in the world to talk to one other—and to their users—through any networked interface; where online services are the connective tissue of the physical world and where physical objects are avatars of online services.