Structuring communities for sharing human digital memories in a social P2P network

A community is sub-network inside P2P networks that partition the network into groups of similar peers to improve performance by reducing network traffic and high search query success rate. Large communities are common in online social networks than traditional file-sharing P2P networks because many people capture huge amounts of data through their lives. This increases the number of hosts bearing similar data in the network and hence increases the size of communities. This article presents a Memory Thread-based Communities for our Entity-based social P2P network that partition the network into groups of peers sharing data belonging to an entity–person, place, object or interest, having its own digital memory or be a part another memory. These connected peers having further similarities by organizing the network using linear orderings. A Memory-Thread is the collection of digital memories having a common reference key and organized according to some form of correlation. The simulation results show an increase in network performance for the proposed scheme along with a decrease in network overhead and higher query success rate compared to other similar schemes. The network maintains its performance even while the network traffic and size increase

A community‐based social P2P network for sharing human life digital memories

Social peer‐to‐peer (P2P) networks are usually designed by reflecting a user's interest/behavior for structuring the underlying network. Human interest is affected by various factors such as age, locality, and so on which changes after some time. The behavior when reflected in a network, results in peers moving within the network in order to connect the peer with peers of the same behavior/interest. Especially in community‐based schemes when a peer leaves a community the data that a peer was sharing will not be accessible in the same community anymore. It has an effect on the performance of the network due to the inaccessibility of data and the unavailability of connections, which affect network robustness. We address this issue by considering entities in data in the form of digital memories of a user and structuring network according to entity‐based communities. The simulation results for the proposed entity‐based community are demonstrated, which shows the effect on network performance during varying network size and traffic

Infrastructuring for cultural commons

In this doctoral dissertation, I inquire into the ways in which Participatory Design (PD) and digital design endeavors can contribute to wider public access to, and use of, digital cultural heritage. I advocate for an approach according to which digital cultural heritage is arranged and understood as cultural commons, and for more collaborative modes of social care for and governance of the commons. In addition to the empirically grounded findings and proposals contained in six individual research articles, I develop a theoretical framework that combines scholarship on Information Infrastructures, Commons and PD. Against this framework I interrogate how the information infrastructures and conditions that surround digital cultural heritage can be active in constructing and contributing to cultural commons. While doing this, I draw attention to the gap that exists between on the one hand official institutional digital cultural heritage collections, systems and practices, and on the other hand the digital platforms and practices through which everyday people create, curate and share digital cultural works. In order to understand how to critically and productively bridge this gap, I present insights gained from conducting three design research cases that engage both cultural heritage institutions and everyday media users. Building upon this empirical work, and latching on to scholarship on the notion of infrastructuring, I propose four infrastructuring strategies for cultural commons: probing and building upon the installed base, stimulating and simulating design and use through gateways, producing and pooling shared resources, and, lastly, fostering and shaping a commons culture that supports commoning. In exploring these strategies, I map the territory between commons and infrastructuring, and connect these notions to the PD tradition. I do so to sketch the design principles for a design orientation, commons design. I assert that these principles can be useful for advancing PD, and can inform future initiatives, aid in identifying infrastructural challenges, and in finding and confirming an orientation to participatory design activities. Drawing on my practical design work, I discuss requirements for professional designers operating on commons frameworks and with collective action. By doing this, my dissertation not only breaks new theoretical ground through advancing theoretical considerations relevant to contemporary design research, especially the field of PD, but also contributes practical implications useful for professional digital media design practice, especially for designers working in the fields of digital culture and cultural heritage

Proceedings of the ECIR2010 workshop on information access for personal media archives (IAPMA2010), Milton Keynes, UK, 28 March 2010

Towards e-Memories: challenges of capturing, summarising, presenting, understanding, using, and retrieving relevant information from heterogeneous data contained in personal media archives. This is the proceedings of the inaugural workshop on “Information Access for Personal Media Archives”. It is now possible to archive much of our life experiences in digital form using a variety of sources, e.g. blogs written, tweets made, social network status updates, photographs taken, videos seen, music heard, physiological monitoring, locations visited and environmentally sensed data of those places, details of people met, etc. Information can be captured from a myriad of personal information devices including desktop computers, PDAs, digital cameras, video and audio recorders, and various sensors, including GPS, Bluetooth, and biometric devices. In this workshop research from diverse disciplines was presented on how we can advance towards the goal of effective capture, retrieval and exploration of e-memories

Proceedings of the ECCS 2005 satellite workshop: embracing complexity in design - Paris 17 November 2005

Embracing complexity in design is one of the critical issues and challenges of the 21st century. As the realization grows that design activities and artefacts display properties associated with complex adaptive systems, so grows the need to use complexity concepts and methods to understand these properties and inform the design of better artifacts. It is a great challenge because complexity science represents an epistemological and methodological swift that promises a holistic approach in the understanding and operational support of design. But design is also a major contributor in complexity research. Design science is concerned with problems that are fundamental in the sciences in general and complexity sciences in particular. For instance, design has been perceived and studied as a ubiquitous activity inherent in every human activity, as the art of generating hypotheses, as a type of experiment, or as a creative co-evolutionary process. Design science and its established approaches and practices can be a great source for advancement and innovation in complexity science. These proceedings are the result of a workshop organized as part of the activities of a UK government AHRB/EPSRC funded research cluster called Embracing Complexity in Design (www.complexityanddesign.net) and the European Conference in Complex Systems (complexsystems.lri.fr). Embracing complexity in design is one of the critical issues and challenges of the 21st century. As the realization grows that design activities and artefacts display properties associated with complex adaptive systems, so grows the need to use complexity concepts and methods to understand these properties and inform the design of better artifacts. It is a great challenge because complexity science represents an epistemological and methodological swift that promises a holistic approach in the understanding and operational support of design. But design is also a major contributor in complexity research. Design science is concerned with problems that are fundamental in the sciences in general and complexity sciences in particular. For instance, design has been perceived and studied as a ubiquitous activity inherent in every human activity, as the art of generating hypotheses, as a type of experiment, or as a creative co-evolutionary process. Design science and its established approaches and practices can be a great source for advancement and innovation in complexity science. These proceedings are the result of a workshop organized as part of the activities of a UK government AHRB/EPSRC funded research cluster called Embracing Complexity in Design (www.complexityanddesign.net) and the European Conference in Complex Systems (complexsystems.lri.fr)

Congenial Web Search : A Conceptual Framework for Personalized, Collaborative, and Social Peer-to-Peer Retrieval

Traditional information retrieval methods fail to address the fact that information consumption and production are social activities. Most Web search engines do not consider the social-cultural environment of users' information needs and the collaboration between users. This dissertation addresses a new search paradigm for Web information retrieval denoted as Congenial Web Search. It emphasizes personalization, collaboration, and socialization methods in order to improve effectiveness. The client-server architecture of Web search engines only allows the consumption of information. A peer-to-peer system architecture has been developed in this research to improve information seeking. Each user is involved in an interactive process to produce meta-information. Based on a personalization strategy on each peer, the user is supported to give explicit feedback for relevant documents. His information need is expressed by a query that is stored in a Peer Search Memory. On one hand, query-document associations are incorporated in a personalized ranking method for repeated information needs. The performance is shown in a known-item retrieval setting. On the other hand, explicit feedback of each user is useful to discover collaborative information needs. A new method for a controlled grouping of query terms, links, and users was developed to maintain Virtual Knowledge Communities. The quality of this grouping represents the effectiveness of grouped terms and links. Both strategies, personalization and collaboration, tackle the problem of a missing socialization among searchers. Finally, a concept for integrated information seeking was developed. This incorporates an integrated representation to improve effectiveness of information retrieval and information filtering. An integrated information retrieval process explores a virtual search network of Peer Search Memories in order to accomplish a reputation-based ranking. In addition, the community structure is considered by an integrated information filtering process. Both concepts have been evaluated and shown to have a better performance than traditional techniques. The methods presented in this dissertation offer the potential towards more transparency, and control of Web search

The use of mobile phones for human rights protection: the experiences of Zimbabwean Human Rights Non-Governmental Organisations

New technologies are emerging as a key part of the struggles for social change. In Africa, social change activists are increasingly relying on mobile phones to organise and mobilise protests for social change and to protect citizens from violence. Zimbabwe has experienced a long history of human rights violations stretching from the times of Rhodesia to post-coalition years. The violations have been in various forms, including the use of physical force and the constriction of political, media and electoral spaces. Human Rights NGOs, as part of civil society, have challenged the state over the violations in various ways, including through traditional and new media channels. Using case studies, namely the Zimbabwe Peace Project, (ZPP), Zimbabwe Lawyers for Human Rights (ZLHR), the Media Institute of Southern Africa (MISA, Zimbabwe) and the Election Resource Centre (ERC), the research investigates the potential of the mobile phone as a tool for contesting the constriction of media freedom, information access, freedom of expression and citizens’ right to human dignity, to life, political choice and free movement and association. The research is based on findings from interviews conducted between 2014 and 2016 with Zimbabwean human rights activists as well as from document analysis. The study established that the phone is a key tool through which NGOs and community activists (or volunteers) are offering protection to citizens by documenting, reporting and disseminating evidence of violence. It is also playing a significant role in legal interventions for victims of violence. Further, the device is empowering citizens to educate themselves about voting and mobilising for elections. Mobile technology is also facilitating the production of community media which is giving marginalised communities voices and opportunities to contribute towards, or participate in local and national dialogue and development. Equally important, it is opening pathways through which NGOs and human rights defenders are able to challenge state institutions that undermine the rule of law and justice. Finally, the study also established that in the face of legal, surveillance, interception and censorship strategies by the state, NGOs are mobilising networks, collaborative campaigns and circumvention and mobile-phone-mediated education and information tools to counter these strategies and tactics. The research is thus significant in terms of struggles from below in the context of new technologies for human rights and democratisation