345 research outputs found

    HUNTED BY THE CROWD: A QUALITATIVE ANALYSIS OF COLLABORATIVE INFORMATION SEARCHING IN CHINA

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    This study explores a particular form of cyber surveillance in China known as "human flesh search," in which unrelated Internet users collaboratively conduct surveillance on fellow citizens. Its theoretical framework draws up the notion of panoptic model, first articulated in the early 1800s by Jeremy Bentham and then developed by the French social theorist and philosopher Michel Foucault. Unlike some previous studies on human flesh searching, which focus on highly publicized search incidents, this study examines cyber surveillance in its daily practice, and probes how and why collaborative searches occur in China. It also explores structural constraints and empowerment experienced by search participants through the lens of power, in order to understand such a controversial activity. The study involved content analysis of a Chinese leading search forum--MOP Human Flesh Search Forum; an online survey with 158 search participants; and in-depth interviews with 9 search participants. The study found that Chinese human flesh search often took the forms of coveillance (peer-to-peer surveillance) and sousveillance (bottom-up surveillance). Fun-seeking was the primary motive for participants, who are mainly male youths; being helpful is the next. Privacy invasions and power abuses have complicated or even undermined search practices, limiting the potential of this activity to contribute to civil governance. In terms of empowerment, participating in the human flesh search seemed to give individual searchers a sense of empowerment, but such effects vary greatly depending on individuals' knowledge, social resources and search experiences. Privacy invasions and power abuses were consistently evident in searching practices, limiting the potential of this crowd-based searching, even when this is said to promote justice, to contribute to civil governance. The study also found that the panoptic model is still highly relevant and useful in understanding collaborative online surveillance, especially the function and effects of "gaze." Once conducted in a collective manner, the gaze of fellow citizens can be greatly extended in its reach and intensified by massive participation. The human flesh search mechanism studied here has great potential to profoundly change China's media landscape, but such potential is limited by current media censorship and the lack of accountability of search participants. Although the study examines searching phenomenon only in Chinese cyber space, the findings may shed light on similar surveillance practices which have emerged elsewhere in recent years. The whole question of citizen participation might benefit from the explication of the role of participation in this form of surveillance

    Semantic discovery and reuse of business process patterns

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    Patterns currently play an important role in modern information systems (IS) development and their use has mainly been restricted to the design and implementation phases of the development lifecycle. Given the increasing significance of business modelling in IS development, patterns have the potential of providing a viable solution for promoting reusability of recurrent generalized models in the very early stages of development. As a statement of research-in-progress this paper focuses on business process patterns and proposes an initial methodological framework for the discovery and reuse of business process patterns within the IS development lifecycle. The framework borrows ideas from the domain engineering literature and proposes the use of semantics to drive both the discovery of patterns as well as their reuse

    Text Mining Methods for Analyzing Online Health Information and Communication

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    The Internet provides an alternative way to share health information. Specifically, social network systems such as Twitter, Facebook, Reddit, and disease specific online support forums are increasingly being used to share information on health related topics. This could be in the form of personal health information disclosure to seek suggestions or answering other patients\u27 questions based on their history. This social media uptake gives a new angle to improve the current health communication landscape with consumer generated content from social platforms. With these online modes of communication, health providers can offer more immediate support to the people seeking advice. Non-profit organizations and federal agencies can also diffuse preventative information in such networks for better outcomes. Researchers in health communication can mine user generated content on social networks to understand themes and derive insights into patient experiences that may be impractical to glean through traditional surveys. The main difficulty in mining social health data is in separating the signal from the noise. Social data is characterized by informal nature of content, typos, emoticons, tonal variations (e.g. sarcasm), and ambiguities arising from polysemous words, all of which make it difficult in building automated systems for deriving insights from such sources. In this dissertation, we present four efforts to mine health related insights from user generated social data. In the first effort, we build a model to identify marketing tweets on electronic cigarettes (e-cigs) and assess different topics in marketing and non-marketing messages on e-cigs on Twitter. In our next effort, we build ensemble models to classify messages on a mental health forum for triaging posts whose authors need immediate attention from trained moderators to prevent self-harm. The third effort deals with models from our participation in a shared task on identifying tweets that discuss adverse drug reactions and those that mention medication intake. In the final task, we build a classifier that identifies whether a particular tweet about the popular Juul e-cig indicates the tweeter actually using the product. Our methods range from linear classifiers (e.g., logistic regression), classical nonlinear models (e.g., nearest neighbors), recent deep neural networks (e.g., convolutional neural networks), and ensembles of all these models in using different supervised training regimens (e.g., co-training). The focus is more on task specific system building than on building specific individual models. Overall, we demonstrate that it is possible to glean insights from social data on health related topics through natural language processing and machine learning with use-cases from substance use and mental health

    Potential For Aquaculture In Community-Managed Irrigation Systems of the Dry-Zone, Sri Lanka: Impacts On Livelihoods Of The Poor

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    Rainfed areas in the Dry-Zone of Sri Lanka are characteristic of extensive marginal agro-ecosystems known as the semi-arid tropics (SAT) populated by poor farming communities. In the Dry-Zone and elsewhere, the traditional response to seasonal water scarcity was to construct rainfall-harvesting devices known as ‘tanks’; created by building earthen dykes across ephemeral streams in undulating terrain. Most are held in common ownership by adjacent communities, who use them for multiple functions including irrigation, bathing and fishing. Storage efficiency is enhanced by arranging tanks in cascading sequence within watersheds so that drainage waters can be re-used. The aim of this study was to evolve improved collective strategies for the management of seasonal water bodies (focussing on aquatic production) in order to reduce the vulnerability of the poorest groups. Understanding of these complex systems requires a holistic approach which integrates hydrological, biological and socio-economic factors on a suitable (watershed) scale. Work commenced with a comprehensive situation analysis, culminating with the formulation of a participatory research agenda for action research based on low-input stocking enhancements. Village livelihoods have traditionally revolved around paddy cultivation as the primary tank function; however, in recent times, water-use strategies have responded to a range of demographic, economic and environmental pressures with implications for the sustainable management of natural resources, especially living aquatic organisms. Natural fish production in the most seasonal tanks relies on intermittent spill-events which link successive tanks; these provide migration routes which permit recruitment of stocks from lower perennial tanks. Rehabilitation initiatives that increase the storage / irrigation capacity of tanks or poorly designed surplus weirs that impede migration have negative impacts on fisheries, though they are rarely considered by planners. The fundamental concept of the purana complex (PC) as the smallest logical sub-component of the watershed for intervention is introduced. Within PC boundaries discrete community groups bound by ties of kinship and caste, control access to private and commonly held natural resources. PCs in the uppermost reaches of watersheds are distinguishable by the highly seasonal nature of their tanks and poor physical infrastructure relative to lower watershed communities. Such areas are also often buffer zones between as yet uninhabited hinterlands and settled areas where cultivation potentials are further restricted due to wild animal incursions. Consequently, these groups exhibit the greatest dependence on exploitation of the natural resource base. This often includes less seasonal tanks in lower PCs where fisheries are of less significance to local livelihoods. Such low-level ‘poaching’ is generally well tolerated, but potential for conflict exists where development efforts restrict hitherto free access to these resources. These findings were the basis for two phases of action research which involved the stocking of ten tanks belonging to seven communities in North West Province (2000-2001). Phase 1 trials encompassed a range of social and physical and settings from lower to upper watershed. Results indicated that the use of costly hatchery-produced seed was unlikely to be sustainable given (1) a background of highly erratic natural production (2) uncertain returns to individual effort and (3) a low priority accorded to fish production from village tanks given the availability of low-cost commercial production from perennial reservoirs. The second phase was restricted to low-caste communities in upper watershed areas and relied entirely on wild-fish stocks captured from perennial reservoirs lower in the watershed. Also emphasis was on intermittent ‘staggered’ harvesting using hook and line gears rather than the single intensive ‘collective harvests’ adopted in phase 1 trials. High yield potentials were demonstrated in the smallest tanks (<4ha) which were devoid of fish stocks during two pervious drought years. Results also indicate that sustainable adoption will be likely only where there is strong social cohesion and representative village leadership. An adaptive learning process which can demonstrate the net benefits of staggered harvesting in seasonal tanks is described. These stocking strategies combined with tank rehabilitation sympathetic to preservation of upstream hydrological linkages, are highly complementary enhancement steps. Results clearly show that together they have potential to maintain the wider aquatic ecosystem on which the poorest groups depend

    Japanese Cinema as Mass Art: An Export of Mass Cinema

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    The aim of the thesis is to examine the distribution and consumption of contemporary Japanese cinema in the UK. Through the study of aesthetics it seeks to identify the ways in which content and current distribution methods suit different markets. NoĂ«l Carroll’s definition of cinema and contemporary media as ‘mass art’ has informed the way in which the thesis notes variation in film content, and forms the core methodology. The selected texts range from the post-war period (1948) with films by directors such as Akira Kurosawa, to contemporary animation cinema such as the work of Mamoru Hosada (2009). The distribution methods of these films is of particular importance as the thesis links them to the export of Japanese identity. The films are available to a UK audience via a range of distribution methods such as officially distributed DVDs, online distribution, and art house cinema exhibitions. There is an emphasis on digital distribution throughout the thesis and this is reflected through the use of texts downloaded from the internet as well as digital sources such as university encyclopaedias and e-books. Each chapter is organised around a distinctive and specified market for Japanese cinema and includes detailed textual analysis of film examples. In the final chapter, on the popularity of Japanese animation (anime), the analysis is enhanced with empirical research into online consumption groups and internet communication, given these groups’ important role in the distribution of anime outside of Japan

    The Social Implications of Rights-Based Fisheries Management in New Zealand for Some Hauraki Gulf Fishermen and their Communities

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    This dissertation examines the social implications of a neoliberal `rights-based‘, fisheries management system introduced in New Zealand on 1 October 1986 in the form of the Quota Management System (QMS) using Individual Transferable Quotas (ITQs). Ongoing biological and economic monitoring has endeavoured to ensure the status of fish and the well-being of the industry but relatively little social research on the fishermen and their communities. This thesis begins to address this discrepancy. It considers four ―components, The Fishing, now Seafood, Industry (corporates), Fisheries Management (MAF/MFish), which have more market and national perspectives respectively, often influenced by international considerations, while social implications impinge more particularly on Fishermen and their Communities, both generally having more local perspectives. Communities, mainly Waiheke Island (my own community) but with reference to Coromandel, and Leigh, that had been active in the Hauraki Gulf snapper fishery before the QMS, were selected, initially as case studies but later as less distinctive variants. The dissertation argues that permitting the `Big Boats‘ on the coast constructed a crisis which was aggravated by loan schemes. The exclusion of the part-timers and aggregation of quota to the corporates has deprived coastal communities. Once they had access to fish through rights of propinquity and usufruct for livelihood and food. Now access to fish is commodified and controlled by corporates supplying an international market. Some fishermen retained their own quota, are passionate and debt free: others are contractors and financially marginal so that what was once an expressive vocation is now a more instrumental and in many cases marginal job. For social justice the QMS must provide better livelihoods for fishermen and better access to fresh locally caught fish at a fair affordable price for local consumers, especially in coastal communities

    Impact of irrigation on poverty and environment in Ethiopia. Draft Proceeding of the Symposium and Exhibition held at Ghion Hotel, Addis Ababa, Ethiopia 27th -29th November, 2007

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    Poverty, Crop management, Irrigated farming, Rainfed farming, Irrigation systems, Food security, Water harvesting, Institutions, Environmental effects, Public health, Malaria, GIS, Remote sensing, Crop Production/Industries, Environmental Economics and Policy, Farm Management, Food Consumption/Nutrition/Food Safety, Food Security and Poverty, Health Economics and Policy, Institutional and Behavioral Economics, Resource /Energy Economics and Policy,

    Karakteritega suhestumine ja digikogukondlik praktika: “Halvale teele” multidistsiplinaarne uurimus

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    Kuidas suhestab vaataja end narratiivse karakteriga? Kirjandusteadus, folkloristika, narratoloogia, psĂŒhholoogia, ja meediauuringud laiemaltki on antud seoses rakendanud kĂ€sitlusi samastumisest, empatiseerimisest ja (vĂ€ljamĂ”eldud maailma) sukeldumisest. Kuna vĂ€ljamĂ”eldud inimesed, kas kirja- vĂ”i pildisĂ”nas, polevat rohkemat autori(te) ettekujutuse viljast, siis pĂŒĂŒdvat vaataja/lugejagi neis kas Ă€ra tunda iseend vĂ”i siis teisalduda jĂ€lgitavasse situatsiooni, end vaadeldava tegelaskujuga samastades. Kui karakteriga suhestumise analĂŒĂŒsis lĂ€htuda aga igapĂ€evasuhtlustasandist, nĂ€ib olevat ebapiisav eelistada ĂŒksnes taaskujutavat ja sissepoole pööratud vaadet inimteadvusele, kuna ideedel inimesest kui „sotsiaalsest olevusest“ ja tĂ€henduse „sotsiaalsest karakterist“ (VĂ”gotskii) on oht jÀÀda tahaplaanile ja „karakteriga suhestumine“ taandub omamoodi sisedialoogiks: vaataja mĂ”istab teist inimest iseenda pĂ”hjal kohandatud mudeli kaudu. Ehkki teatud olukordades on see vajalik mĂ”istmis- ja tĂ€hendustamisstrateegia, ei saa eirata, et suhestumine kui selline on ometi suunatud. Haaratud ollakse kellestki, „sukeldutakse“ maailma, mida keegi omas-maailmas-iseseisvalt-eksisteerivana asustab. KĂ€esoleva doktorivĂ€itekirja avapeatĂŒkk sĂŒnteesib vĂ€ga mitmekesist teaduskirjandust ja töötab vĂ€lja kohase teoreetilise mĂ”isteraamistiku, mis kĂ€sitleb suhestumist teleseriaali tegelaskujudega argiteadvuslikust sotsiaalsest kogemusest lĂ€htuvalt. Keskne on siin kĂ€sitlus pĂ€risustamisest: kogukondliku arutelu kontekstis lihtsalt lĂ€henetaksegi tegelaskujudele kui pĂ€ris inimestele. Narratiivsest tegelaskujust saab persoon. Internetiarutelud opereerivad kolmandas isikus (mina/tema) ja narratiiv-ajalooliselt (vĂ€ljamĂ”eldud sĂŒĆŸee kui narratiivse persooni elu lugu). Individuaalsed kommentaaritekstid on siinjuures mĂ”istetavad kui narrtseptid, s.o. narratiivse teis(t)e-taju tĂ€hendusloomelised saadused. Narrtseptid toovad esile narratiivsetele persoonidele suunatud tĂ”lgenduste kogukondlikult jagatud, mitmehÀÀlset mÔÔdet. VĂ€itekirja teine peatĂŒkk tutvustatab originaalmĂ”istet majakas. Majakal on internetikommunikatsiooni analĂŒĂŒsis struktureeriv roll. “Heites valgust“ kommunikatsiooni erinevatele kĂŒlgedele, majakas kas liigendab narrtseptiivseid looilmu (retseptiivne, „populaarne“ dimensioon) vĂ”i komponeerib neid reaalajaliselt avalduvateks ’lahtiste otstega’ diskursuseilmadeks (analĂŒĂŒtilis-metodoloogiline, „akadeemiline“ dimensioon). Siinkohal pakubki antud peatĂŒkk ĂŒhtlasi ka kriitilisi kohandusi juba kĂ€ibelolevatele mĂ”istetele vĂ”imalike maailmade ja narratiiviteooriast ning diskursuseanalĂŒĂŒsist, s.o., looilm, kavatsemis-ilm, tekstiloojate-ilm ja diskursuse-ilm. DoktorivĂ€itekirja kolmas peatĂŒkk keskendub ameerika teleseriaali “Halvale teele“ (Breaking Bad) internetikommentaaride illustratiivsele lĂ€hianalĂŒĂŒsile. Eelkirjeldatud teoreetilisel mĂ”isteaparatuuril on analĂŒĂŒsis keskne roll.How does the viewer engage herself with narrative characters? Literary theory, folkloristics, narratology, psychology, and media studies more widely have generally found guidance in the treatments of identification, empathy, and immersion. For if fictional people, be it by the written or audiovisual depiction, are nothing but the fruits of authors’ imagination, then the viewer or the reader similarly attempts to recognize herself in, immerse herself into the world of, and identify herself with the observed character. While analyzing character engagement from the perspective of everyday communication, however, the exclusively representational and inward approach to the human mind can prove an inadequate preference. For the respective ideas of human as a „social being“ and the „social character of meaning“ (Vygotsky) hazard to become backgrounded due to „character engagement“ becoming proportionate to a kind of inner dialogue: viewer makes sense of the other through the model she has adapted about herself. Although it can be, at times, a necessary strategy for comprehension and sense-making, one cannot disregard the engagement being—even toward “fictional” people—always directed. You are absorbed by someone, you become “immersed” in a world that is inhabitated by someone autonomously-existing-with-their-world. In synthesizing diverse literature, Chapter One of the present dissertation develops appropriate theoretical framework that approaches engagement with the characters of television serials from the stance of common sense social experience. Of focal significance here is the notion of realitization: in the context of communal discussion, characters just are approached as if real people. Accordingly, a narrative character becomes a person. For Internet discussions operate in third person (me/her) and historio-narratively (“fictive” plot as narrative person’s life story). Individual commentary texts become hereby considered as narrcepts; that is, they are the sense-making products of the narrative perception of the other (narrative+precept). Through narrcepts, the distributed and polyphonic dimension of the construals directed toward narrative persons becomes acknowledged. Chapter Two of the dissertation introduces a succeeding original notion: beacon. Beacon enacts a structuring role in the analysis of online communication. Beacon „throws light“ onto the different aspects of Internet discourse, decomposing narrceptive storyworlds (reciprocal, „popular“ dimension) and composing the latter into „open ended“ discourse worlds emerging in real time (analytical-methodological, „academical“ dimension). Consequently, critical adaptations of current terminology in possible worlds theory, narrative theory, and discourse analysis are presented; that is, storyworld, intend-world, text makers’ world and discourse world. Chapter three of the dissertation concentrates on the illustrative close analysis of the online commentaries with regard to the American television serial Breaking Bad. The previously established theoretical apparatus serves a central role in the analysis

    THE EMOTIONS SOCIAL MEDIA BRING TO NEWS: THE EMERGENCE OF EMPATHY AND COMPASSION AS ELEMENTS IN NEWS MESSAGES

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    This study is an experiment examining qualitative differences of social media as an emerging news platform from traditional main stream media. The study argued a need of the reinterpretation of Marshall McLuhan's notion, "media is the message" in terms of an interaction between news content and media platforms. The study proposed a new concept of users' proximity to news, called "locality," which has been matured by user driven social media environments. For the study, a laboratory experiment was conducted. A total of 83 college students in a large mid-Atlantic university participated in the laboratory experiment as a representative of young adult news consumers. A main stream media news website and Facebook were assigned as news platforms, while negative and positive news content was provided as news content to subjects. Subjects' responses to news content which was laden in the same directional valence of a platform (negative news on a negative main stream media news website) and an opposite directional platform (negative news on positive social media) were observed. Subjects' reaction time and accuracy of memory of news content were measured by psychological software. Subjects also reported their emotions such as valence, intensity, compassion and empathy on negative and positive news content. Results exhibited an effect of coactivation between news content and media platform. When the valence of news contents and its platform were contradicted, the effect of coactivation such as users' hesitation of decision making was found. The results implicated that users' preoccupied expectation for specific news platform may filter their attention to news stories on a specific platform. The ambivalent responses of both empathy and compassion on identical negative news contents supported the proposed concept of "locality." It was revealed that media users manipulate their psychological proximity to news within securing safe distances from negative situations in recent user driven communication environments. Based on the examination, implication of the study for the practice of journalism against confronting challenges was discussed
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