A Relational Hyperlink Analysis of an Online Social Movement

In this paper we propose relational hyperlink analysis (RHA) as a distinct approach for empirical social science research into hyperlink networks on the World Wide Web. We demonstrate this approach, which employs the ideas and techniques of social network analysis (in particular, exponential random graph modeling), in a study of the hyperlinking behaviors of Australian asylum advocacy groups. We show that compared with the commonly-used hyperlink counts regression approach, relational hyperlink analysis can lead to fundamentally different conclusions about the social processes underpinning hyperlinking behavior. In particular, in trying to understand why social ties are formed, counts regressions may over-estimate the role of actor attributes in the formation of hyperlinks when endogenous, purely structural network effects are not taken into account. Our analysis involves an innovative joint use of two software programs: VOSON, for the automated retrieval and processing of considerable quantities of hyperlink data, and LPNet, for the statistical modeling of social network data. Together, VOSON and LPNet enable new and unique research into social networks in the online world, and our paper highlights the importance of complementary research tools for social science research into the web

Why tracing a locality's networked governance is worthwhile

The transition from government to governance brings about a shift in performance evaluation. The focus can no longer be on an individual entity, but must extend into considering how a collective of government and non-government institutions achieves the outcomes sought. How can this evaluation task proceed? While applying the formal methods of social network analysis (SNA) to measuring, analysing and managing networked governance may seem obvious to some, such a solution seems to have been avoided over many decades. SNA tools that non-experts can use have been released in recent past, providing opportunities in learning-by-doing among practitioners and scholars with responsibilities or interests in public sector management. The overarching aim in this paper is to promote adoption of an open-source software tool - NodeXL - as one pathway toward understanding and improving networked governance situations, and toward communicating results to others. It begins by establishing three areas of information needs held by Australia's local governments, where undertaking a pilot study could be useful. They are, local government's real positioning with other decision-makers in the networked governance that is Australian federalism; world better practice in risk governance, given the significant exposure of Australian councils to natural disaster events; and measuring change over time in governance capital, as a component in the capitals approach to measuring sustainable development. Establishing functional and spatial boundaries was a key step in design, with the choice being environment protection and natural resources management in the 350km2 catchment area of the Wonboyn Lake estuary on the far south coast of New South Wales. A Web search of documents containing the terms 'Wonboyn Lake' or 'Wonboyn River' then followed. One hundred and twenty nine documents were retrieved. Analysing their contents led to identifying over two hundred institutional actors either transmitting or receiving knowledge relevant to the locality. Some 420 communications taking place between 1967 and 2011 were identified, and tagged according to year of transmission. The decision-making level within which each institutional actor operated; and whether industry, regulator, external researcher or stakeholder were other characteristics recorded. A 421 x 2 matrix of Wonboyn data was then pasted into the NodeXL template operating on MS Excel 2007/2010. Resource materials downloaded from the Web supported the learning-by-doing element of the pilot study. Four visualisations on networked environmental governance are provided. The first shows unmodified data as a graph in random layout. Its purpose is to provide a benchmark against which some of the SNA procedures available for analysing data can be compared. Then follow three graph layouts, each designed to meet the areas of information need established at the study's beginning. Results suggest, in the author's opinion, any time invested in learning-by-doing with NodeXL will reward those wishing to understand, manage and communicate the complexity that is networked governance. Suggestions on how the Australian Centre for Excellence in Local Government, and practitioners in local councils, could be early adopters of this innovation by using data already available to them are offered, so that they may undertake similar pilot studies

Annotated directory of US Government information system projects of potential interest to NASA/SSPO

The purpose of this research activity was to develop a list for NASA of major U.S. government information systems contacts who are able to cooperate with NASA on technical interchange. The list contains the names of appropriate managers involved in major information system projects, U.S. government office officials, and their hierarchy up to the highest officials whose major responsibilities include government information systems development

Spacelab system analysis: A study of the Marshall Avionics System Testbed (MAST)

An analysis of the Marshall Avionics Systems Testbed (MAST) communications requirements is presented. The average offered load for typical nodes is estimated. Suitable local area networks are determined