One Trillion Edges: Graph Processing at Facebook-Scale

ABSTRACT Analyzing large graphs provides valuable insights for social networking and web companies in content ranking and recommendations. While numerous graph processing systems have been developed and evaluated on available benchmark graphs of up to 6.6B edges, they often face significant difficulties in scaling to much larger graphs. Industry graphs can be two orders of magnitude larger -hundreds of billions or up to one trillion edges. In addition to scalability challenges, real world applications often require much more complex graph processing workflows than previously evaluated. In this paper, we describe the usability, performance, and scalability improvements we made to Apache Giraph, an open-source graph processing system, in order to use it on Facebook-scale graphs of up to one trillion edges. We also describe several key extensions to the original Pregel model that make it possible to develop a broader range of production graph applications and workflows as well as improve code reuse. Finally, we report on real-world operations as well as performance characteristics of several large-scale production applications

The Story of Indian Head Rock - Presentation

A presentation given prior to the screening of the documentary film Between the Rock and the Commonwealth at Portsmouth, Ohio on August 24, 2017.https://scholarworks.moreheadstate.edu/indian_head_rock/1111/thumbnail.jp

Designing Chatbots for Crises: A Case Study Contrasting Potential and Reality

Chatbots are becoming ubiquitous technologies, and their popularity and adoption are rapidly spreading. The potential of chatbots in engaging people with digital services is fully recognised. However, the reputation of this technology with regards to usefulness and real impact remains rather questionable. Studies that evaluate how people perceive and utilise chatbots are generally lacking. During the last Kenyan elections, we deployed a chatbot on Facebook Messenger to help people submit reports of violence and misconduct experienced in the polling stations. Even though the chatbot was visited by more than 3,000 times, there was a clear mismatch between the users’ perception of the technology and its design. In this paper, we analyse the user interactions and content generated through this application and discuss the challenges and directions for designing more effective chatbots

HEP Outreach, Inreach, and Web 2.0

I report on current usage of multimedia and social networking "Web 2.0" tools for Education and Outreach in high-energy physics, and discuss their potential for internal communication within large worldwide collaborations, such as those of the LHC. Following a brief description of the history of Web 2.0 development, I present a survey of the most popular sites and describe their usage in HEP to disseminate information to students and the general public. I then discuss the potential of certain specific tools, such as document and multimedia sharing sites, for boosting the speed and effectiveness of information exchange within the collaborations. I conclude with a brief discussion of the successes and failures of these tools, and make suggestions for improved usage in the future.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/90828/1/1742-6596_331_8_082003.pd

Girl power and 'selfie humanitarianism'

The aim of this article is to examine the ‘turn to the girl’ and the mobilization of ‘girl power’ in contemporary global humanitarian and development campaigns. The paper argues that the ‘girl powering’ of humanitarianism is connected to the simultaneous depoliticization, corporatization, and neo-liberalization of both humanitarianism and girl power. Located in broad discussions of campaigns around Malala, Chime for Change and the Girl Effect, the paper seeks to understand the construction of girls as both ideal victims and ideal agents of change, and to examine the implications of this. It suggests that this shift is intertwined with what we call ‘selfie humanitarianism’ in which helping others is intimately connected to entrepreneurial projects of the self, and is increasingly figured less in terms of redistribution or justice than in terms of a makeover of subjectivity for all concerned. The structure of the paper is as follows. First we consider the literature about the depoliticization of humanitarian campaigns in the context of neoliberalism and the growing significance of corporate actors in the world of international aid and disaster relief. Next we examine similar processes in the commodification and export of discourses of ‘girl power’. We then argue that these have come together in the emerging ‘girl powering of development’ (Koffman and Gill 2013), a cocktail of celebratory ‘girlafestoes’ and empowerment strategies often spread virally via social media; celebrity endorsements; and corporate branding which stress that ‘I matter and so does she’ and elide the differences between pop stars and CEO of multinational corporations on the one hand, and girls growing up poor in the global South on the other. Our paper focuses on contemporary examples from the Girl Up campaign. The paper argues that far from being ‘post’ girl power, global humanitarian and development discourses constitute a new and instensified focus upon the figure of the girl and a distinctive, neo-colonial, neoliberal and postfeminist articulation of girl power

Employment experiences of Polish migrant workers in the UK hospitality sector.

2010-2011 > Academic research: refereed > Publication in refereed journa