Connecting social media to e-commerce:cold-start product recommendation using microblogging information

In recent years, the boundaries between e-commerce and social networking have become increasingly blurred. Many e-commerce websites support the mechanism of social login where users can sign on the websites using their social network identities such as their Facebook or Twitter accounts. Users can also post their newly purchased products on microblogs with links to the e-commerce product web pages. In this paper, we propose a novel solution for cross-site cold-start product recommendation, which aims to recommend products from e-commerce websites to users at social networking sites in 'cold-start' situations, a problem which has rarely been explored before. A major challenge is how to leverage knowledge extracted from social networking sites for cross-site cold-start product recommendation. We propose to use the linked users across social networking sites and e-commerce websites (users who have social networking accounts and have made purchases on e-commerce websites) as a bridge to map users' social networking features to another feature representation for product recommendation. In specific, we propose learning both users' and products' feature representations (called user embeddings and product embeddings, respectively) from data collected from e-commerce websites using recurrent neural networks and then apply a modified gradient boosting trees method to transform users' social networking features into user embeddings. We then develop a feature-based matrix factorization approach which can leverage the learnt user embeddings for cold-start product recommendation. Experimental results on a large dataset constructed from the largest Chinese microblogging service Sina Weibo and the largest Chinese B2C e-commerce website JingDong have shown the effectiveness of our proposed framework.

The network structure of Hungarian business clusters

This article investigates the attitudes to inter-firm co-operation in Hungary by analysing a special group of business networks: the business clusters. Following an overview of cluster policy, a wide range of selfproclaimed business clusters are identified. A small elite of these business networks evolves into successful, sustainable innovative business clusters. However, in the majority of cases, these consortia of interfirm co-operation are not based on a mutually satisfactory model, and as a consequence, many clusters do not survive in the longer term. The paper uses the concepts and models of social network theory in order to explain, why and under what circumstances inter-firm co-operation in clusters enhances the competitiveness of the network as a whole, or alternatively, under what circumstances the cluster remains dependent on Government subsidies. The empirical basis of the study is a thorough internet research about the Hungarian cluster movement; a questionnaire based expert survey among managers of clusters and member companies and a set of in-depth interviews among managers of self-proclaimed clusters. The last chapter analyises the applicability of social network theory in the analysis of business networks and a model involving the value chain is recommended.

More Than Words, Brand Destruction in the Online Sphere

The focus of this paper is brand destruction, however in a slightly different sense than the traditional marketing literature depicts it. The concept of brand destruction basically tends to be discussed either (1) as an accidental, counter-productive event in a campaign which leads to the ruining of the brand, or (2) an intentional act by competitors in the market, which results the same breakdown mentioned above. As this paper shows, there are other ways to consider as well, when speaking about brand destruction. An often overlooked type of brand destruction is a rather new phenomenon: destroying the brand by customers or business partners. The adequate scene for this case is the internet itself, especially different social media platforms, e. g. Facebook, Twitter, Tumblr, Instagram, etc. Also popular weblogs can play an important role in brand destruction made by customers or business partners (general cases related to social media are depicted in Lipsman – Mud – Rich – Bruich, 2012). This paper presents a couple of cases in the online field and focuses basically on online communicative activities, in which a brand’s negative properties come to discussion. Both Hungarian and foreign examples are easy to find and they all demonstrate the growing power of consumers. This observation led marketing experts to start talking about the ‘smooth seizure of power by consumers’. Whilst the critic of this concept is considered to be relevant, this paper describes the elements and methods of the ‘seizure’ – from an online social point of view. The key of handling brand destruction cases efficiently lies in the role of social media users. They are not only consumers, but the opportunity for producing online contents is in their hands as well – this fact results in the idea of ‘prosumers’. Thus customers on social media platforms must be handled as a ‘critical mass’: as civic warriors with strong weapons in their armoury. No companies are allowed to feel safe, as the slightest error may well be punished by the crowd.

Google’s Antitrust Cases Competition Analysis in New Economy Markets

Today, global economic performance largely depends on digital ecosystems. E-commerce, cloud, social media, sharing economy are the main products of the modern innovative economic systems which are constantly raising new regulatory questions. Meanwhile the United States has an unimpeachable dominance in innovation and new technologies, as well as a large and open domestic market, the EU is only recently discovering the importance of empowering the European digital economy and aims to break down its highly fragmented cross-border online economic environment. As global economy is rapidly becoming digital, Europe’s effort to create and invest in common digital market is understandable. The comprehensive investigations launched by the European Commission into the role of social network, search engine, or sharing economy internet platforms, which are new generation technologies dominated by American firms; or the recent decision of the Court of Justice of the European Union declaring that the Commission’s US Safe Harbor Decision is invalid1 might be considered as part of an anti-American protectionist policy. However, these measures could rather be seen as part of a broader trend to foster European enterprises in technology developments.

Late adolescents in transition: Social networks, parent relations, and well -being

A two-year longitudinal study was conducted to investigate late adolescents in transition. An initial investigation with senior high school students assessed students prior to leaving home for college and after college entrance. Of the original 131 participants recontacted two years after their graduation, 78 returned surveys. The study (a) explored changes in social network structure and function, (b) determined whether late adolescent-parent-peer relations change over time, and (c) identified prospectively the impact of social support, adolescent-parent-peer relations, and attachment security on well-being and feelings about the transition after high school. Students attending college locally reported an increase in total network support at Time 2. Regardless of location, more support from friends was received after the transition from high school, whereas family support did not vary across time. Parent relations were closer after the transition and were predictive of various well-being measures and feelings about the transition from high school. ^

Ser-imagem – Além do selfie. A autorrepresentação fotográfica no Facebook

In a crescent connected and image-made society in various online social networks, each user taking pictures of him/herself and posting them on social online network, makes a self-registration that emerges in self-representation by aggregated daily practices of various themes. This research aims to study the dynamics of the relations of this photographic self-representation relations with agency, technology, affectivity, and consumption that goes beyond narcissism, composing a being integrated with the visual power and its reverberations, which I hereby call as Being -Image. The goal of this paper is an anthropological look over these practices. In this sense, I carry out the research developed in the field of image and cyber antropology with various interlocutors established in dialogues, analysis and virtual meetings. I tried, besides conversations and interviews, to analyze the profiles on the social network as well as daily posts, photo albums available on online network , sharings and mainly selfies.

Empirical aspects of a mixed method approach to economic network analysis

We discuss the interactions among the various phases of network research design in the context of our current work using Mixed Methods and SNA on networks and rural economic development. We claim that there are very intricate inter-dependencies among the various phases of network research design - from theory and formulation of research questions right through to modes of analysis and interpretation. Through examples drawn from our work we illustrate how choices about methods for Sampling and Data Collection are influenced by these interdependencies.

Digital anthropology and educational eGames: learning through behavioural patterns in digital, game-based contexts

The selected publications are focused on the relations between users, eGames and the educational context, and how they interact together, so that both learning and user performance are improved through feedback provision. A key part of this analysis is the identification of behavioural, anthropological patterns, so that users can be clustered based on their actions, and the steps taken in the system (e.g. social network, online community, or virtual campus). In doing so, we can analyse large data sets of information made by a broad user sample,which will provide more accurate statistical reports and readings. Furthermore, this research is focused on how users can be clustered based on individual and group behaviour, so that a personalized support through feedback is provided, and the personal learning process is improved as well as the group interaction. We take inputs from every person and from the group they belong to, cluster the contributions, find behavioural patterns and provide personalized feedback to the individual and the group, based on personal and group findings. And we do all this in the context of educational games integrated in learning communities and learning management systems. To carry out this research we design a set of research questions along the 10-year published work presented in this thesis. We ask if the users can be clustered together based on the inputs provided by them and their groups; if and how these data are useful to improve the learner performance and the group interaction; if and how feedback becomes a useful tool for such pedagogical goal; if and how eGames become a powerful context to deploy the pedagogical methodology and the various research methods and activities that make use of that feedback to encourage learning and interaction; if and how a game design and a learning design must be defined and implemented to achieve these objectives, and to facilitate the productive authoring and integration of eGames in pedagogical contexts and frameworks. We conclude that educational games are a resourceful tool to provide a user experience towards a better personalized learning performance and an enhance group interaction along the way. To do so, eGames, while integrated in an educational context, must follow a specific set of user and technical requirements, so that the playful context supports the pedagogical model underneath. We also conclude that, while playing, users can be clustered based on their personal behaviour and interaction with others, thanks to the pattern identification. Based on this information, a set of recommendations are provided Digital Anthropology and educational eGames 6 /216 to the user and the group in the form of personalized feedback, timely managed for an optimum impact on learning performance and group interaction level. In this research, Digital Anthropology is introduced as a concept at a late stage to provide a backbone across various academic fields including: Social Science, Cognitive Science, Behavioural Science, Educational games and, of course, Technology-enhance learning. Although just recently described as an evolution of traditional anthropology, this approach to digital behaviour and social structure facilitates the understanding amongst fields and a comprehensive view towards a combined approach. This research takes forward the already existing work and published research onusers and eGames for learning, and turns the focus onto the next step — the clustering of users based on their behaviour and offering proper, personalized feedback to the user based on that clustering, rather than just on isolated inputs from every user. Indeed, this pattern recognition in the described context of eGames in educational contexts, and towards the presented aim of personalized counselling to the user and the group through feedback, is something that has not been accomplished before.

Exploring the relationship between women’s empowerment and the internet in China: potentials and constraints

This thesis reports on an exploratory study of the relationship between the Internet and women’s empowerment in China. The theoretical framework of the study combines feminist theorisations of power – the core concept of empowerment – with insights from sociological perspectives on power and gender, as well as collective action theory. This allows for the conceptualisation of women’s empowerment as a dynamic process that is shaped by a set of communicative practices. Focusing on female Chinese bloggers and women’s groups of different organisational types, this study aims to explore the respective ways in which these two types of women actors use the Internet with a view to examining whether, and the extent to which it enables them to generate a sense of empowerment. The empirical data mainly derives from interviews with female bloggers and with staff members from different women’s groups, as well as from a features analysis and social network analysis of the sampled blogs and official websites of studied groups. Overall, the findings suggest that the opportunities offered by the Internet for women’s empowerment through awareness-raising, social interactions, and the organising of collective action, are limited. For female bloggers, their activities do not translate the new communicative practices afforded by the Internet into concrete action to bring about changes in their everyday life. On the contrary, blogs become an alternative platform to discipline their behaviours and to reinforce patriarchal gendered norms. Moreover, the research finds that the promise of empowerment is further undermined by the pervasive commercialisation of the Internet and state control. For women’s groups, contextual factors prevent them from fully realising the potential of the Internet for increasing their organisational visibility, promoting public awareness about gender issues, building a sense of the collective, campaigning, or networking. The major barriers in these processes are state control, a lack of resources, online censorship, and at times, competition from commercial sites. In this respect, the Internet does not play a significant role in forming a collective to challenge existing unjust power relations.

How to map the diversity of the audiovisual industry in the digital era. A Methodological Proposition

This article presents a methodological proposition to map the diversity of the audiovisual industry in the digital scenario by portraying the most important interactions between those who create, produce, distribute and disseminate audiovisual productions on line, paying special attention to powerful intermediaries and to small and medium independent agents. Taking as a point of departure a flexible understanding of social network analysis, the aim is to understand the structure of the audiovisual industry on the internet so that, taking into consideration a given sector, agents, their relations and the networks they give place to – as well as the structural conditions under which they operate – are studied. The aim is to answer questions such as: what is mapping, what is of interesting to map, how can it be done and what advantages and disadvantages the results will present.

Estrategias de visibilización y procesos de identificación boliviana en la prensa gráfica y en la red social Facebook, en dos ciudades del centro de la provincia de Buenos Aires, Argentina

Los usos y las formas de identificación intra y extra grupo a través de los medios de comunicación son aspectos escasamente explorados en los estudios sobre las identidades en ciudades de tipo intermedias del centro de la provincia de Buenos Aires, Argentina. Por ello, el objetivo de este trabajo consiste en analizar y discutir los modos en que se visibilizan y construyen las representaciones y manifestaciones de los inmigrantes y descendientes bolivianos, específicamente en la red social Facebook y en la prensa gráfica local de las ciudades de Olavarría y Azul. Se pretende contribuir a la comprensión de la manera en que se producen los diversos discursos y saberes de estos grupos, así como identificar a estos medios de comunicación como instrumentos que posibilitan intervenir desde otros espacios de reconocimiento y legitimidad.

Integrating Scientific Publication into an Applied Gaming Ecosystem

Salman, M. et al. (2016). Integrating Scientific Publication into an Applied Gaming Ecosystem. GSTF Journal on Computing (JoC), Volume 5 (Issue 1), pp. 45-51.

Perfis de Redes Sociais Pessoais de Idosos com e Sem Apoio de Respostas Sociais: um contributo para o desenvolvimento de tipologias no Diagnóstico Social

Sendo um dos objetivos do Serviço Social a promoção do bem-estar social, e considerando a relevância das redes sociais pessoais e do suporte social no bem-estar das pessoas idosas, o presente estudo analisa perfis de redes sociais pessoais de idosos, tendo em conta as suas características estruturais, funcionais e relacionais-contextuais, na perspectiva do Serviço Social sistémico. Na última etapa da vida identificam-se na rede social de um individuo vários determinantes com efeitos cumulativos que favorecem o estreitamento das redes sociais, sendo os contextos de vida, as necessidades de apoio de respostas sociais e a institucionalização, fatores relevantes para a investigação. A investigação quantitativa, utilizou um inquérito por questionário para caracterizar sociodemograficamente a amostra e o Instrumento de Análise de Rede Social Pessoal (Guadalupe, 2009) para caracterizar a rede nas suas dimensões e características, privilegiando-se uma análise bivariada das variáveis. A amostra é composta por 317 idosos com idade igual ou superior a 65 anos. Comparámos três subamostras: 209 idosos que não usufruem do apoio de respostas sociais (65,9%), sendo estes maioritariamente de sexo feminino, casado(a)s ou a viver em união de facto e com média de 75 anos; 71 idosos que usufruem de apoio de respostas sociais (22,4%), na sua maioria de sexo feminino, viúvo(a)s e com 80 anos de média de idade; 37 idosos institucionalizados em Lar (11,7%), mulheres na sua maioria, viúvo(a)s, com média de 83 anos. A hipótese inicial do nosso estudo era a existência de três perfis distintos nas redes sociais pessoais de idosos, conforme a sua relação com as respostas sociais, no entanto, concluiu-se que existe um padrão comum nas redes sociais destes idosos, quer a nível estrutural, como a nível funcional ou contextual. Todavia, identificamos algumas diferenças significativas (p < 0,041) entre os perfis explorados, na composição das redes, na reciprocidade de apoio, na satisfação da rede, na densidade, na frequência de contactos, na distância geográfica e na durabilidades das relações. O estudo constitui-se como um contributo para o Serviço Social, na medida em que oferece conhecimento sobre as redes sociais dos idosos em diferentes contextos de vida, não oferecendo, no entanto, uma categorização que possibilite a construção cabal de tipologias, mas antes, fornece uma base orientadora da avaliação das redes sociais pessoais e de suporte social de idosos para o diagnóstico social. / Being one of Social Work goals the promotion of social well-being, and considering the relevance of personal social networks and social support in the well-being of the elderly, the present study analyzes personal social network’s profiles of elderly people, taking into account their structural, functional and relational-contextual characteristics, in a Social Work systemic perspective. In the last stage of life are identified in an individual's various social network determinants with cumulative effects favouring the narrowing of social networks, being life contexts, the support needs of social responses and institutionalization, relevant factors to the investigation. Our quantitative research used a survey to characterize socially and demographically the sample and the Personal Social Network Analysis Tool (Guadalupe, 2009) to characterize the network in its dimensions and characteristics, using a bivariate analysis of the variables. The sample is composed of 317 elderly aged 65 years old or more. We compared three sub-samples: 209 seniors who do not have the support of social services (65.9%), mostly female, married or cohabiting and with an average of 75 years old; 71 seniors who have support of social services (22.4%), mostly women, widowed and with 80 years of average age; 37 institutionalized elderly (11.7%), mostly women, widowed, with an average age of 83 years. The initial hypothesis of our study was the existence of three distinct personal profiles on social networks, according to their relationship to the social services, however, we have concluded that there is a common pattern in social networks of these elderly, at their structural, functional or contextual level. However, we identified some significant differences (p < 0.041) between the explored profiles, in the composition of networks, support reciprocity, network satisfaction, density, frequency of contacts, geographical distance and durability of relations. The study is a contribution to Social Work, insofar as it provides knowledge about personal social networks of the elderly in different life contexts, not offering, however, a fully categorization that allows the construction of typologies, but rather, provides guidance lines in the evaluation of personal social networks and social support of the elderly to the social diagnosis.

Rede Social Pessoal de Jovens Acolhidos em Lares de Infância e Juventude

A rede social dos sujeitos tem sido considerada fundamental para lidar com a adversidade. O objetivo central deste estudo foi caracterizar as redes sociais pessoais de jovens em regime de acolhimento institucional prolongado, na perspetiva dos próprios e dos técnicos das instituições e perceber se estas relacionam com o projeto de vida. Participaram 84 jovens, com idades compreendidas entre os 12 e os 20 anos de idade, acolhidos em 6 lares de infância e juventude do distrito de Santarém. Os participantes são na sua maioria do sexo feminino, com uma idade média de 15 anos. Para avaliação das variáveis em estudo utilizou-se a versão revista sumária do Instrumento de Avaliação de Redes Sociais Pessoais (IARSP-RS) e um questionário de autorresposta de caracterização da instituição de acolhimento. Os resultados desta investigação permitiram verificar que as redes dos jovens em situação de acolhimento institucional são fragmentadas, constituídas, em média, por 12 elementos e predominantemente compostas por familiares, amigos e profissionais das instituições, destacando-se as relações familiares. O nível de apoio social percebido é elevado na função emocional e informativa. Verificou-se uma maior reciprocidade do apoio por parte das jovens do sexo feminino, a institucionalização pode potenciar a expansão da rede social de suporte e a frequência de contactos associa-se à distância geográfica. A satisfação dos jovens com o suporte social é elevada. Metade dos jovens perspetivam a saída da instituição pela via da autonomização. A perceção dos profissionais das redes de suporte social é mais limitada, no tamanho, reciprocidade, satisfação com o suporte social e nas relações estabelecidas com a família, amigos da comunidade envolvente e relações de trabalho/estudo. Por outro lado, os técnicos identificam um nível mais elevado de densidade e de vínculos com os técnicos e educadores da instituição. Não se verificaram diferenças significativas nas características da rede social em função do projeto de vida, porém perceberam-se diferenças no projeto de vida em função da idade e da duração do acolhimento. A rede social apresenta um potencial protetor que vale a pena conhecer, fomentar e valorizar, destacando-se que é importante conhecer a perspetiva do próprio sujeito, já que esta tem um carácter muito pessoal. / The social network has been considered fundamental to deal with the adversities. The main objective of this study was to characterize the social network of the youngesters in prolonged institutional care, from the perspective of themselves and professionals of the institutions and to observe if their social network fits with their life project. 84 youngsters with ages between 12 and 20 years old living in 6 institutions of childhood and juvenile care from de district of Santarém participated in this study. The participants are mainly female, with an average age of 15 years old. To evaluate the variables in study, it was applied a version of the summary review of the Instrument of Evaluation of Personal Social Networks (IARSP-RS) and a survey of self-response to characterize the institutional care. The results of this investigation allowed to conclude that the social network of youngsters in a situation of institutional care are fragmented, composed by an average of 12 elements and primarily composed by family members, friends and professionals, but the most significant were the family relationships. It was observed that social support is high in terms of emotional and informative functions. It was observed an higher mutual support from the young ladies, institutionalization may foster the expansion of the social support network and that the frequency of connections is related with geographic distance. The satisfaction of the youngsters with social support is high. Half of the youngsters previews getting out of the institution by becoming autonomous. The understanding of the professionals of the social support network is more limited, about size, mutuality, satisfaction with the social support, family, friends of involving community and relationship of work/study. On the other side, the professionals identify an higher level of density and bonds with the technicals and educators of the institutions. Significative differences in the characteristics social network in terms of the life project weren’t found, however there were diferences in the life project in terms of the age and the duration of institutionalization. The social network has a protector potential that is worth of studying, promote and valorize, highlighting that it is important to know the perspective of the individual, because of its personal nature.

Rede Social Pessoal de Cuidadores Informais de Adultos com Necessidades Especiais

Objetivo. Devido ao aumento da esperança de vida, os adultos com necessidades especiais vivem mais tempo, sendo os seus principais cuidadores, geralmente familiares, também mais envelhecidos. Tal situação representa novas necessidades específicas de apoio, sendo inúmeros os desafios colocados ao Serviço Social no sentido de garantir o bem-estar da pessoa com incapacidade e dos seus cuidadores. Assim, este estudo tem como objetivo realizar um levantamento das necessidades de apoio e a caraterização da rede social pessoal de apoio do cuidador informal de adultos com necessidades especiais. Participantes. A amostra é constituída por 40 cuidadores informais de adultos com necessidades especiais, integrados na resposta social “Centro de Atividades Ocupacionais-CAO” da Associação de Paralisia Cerebral de Coimbra, de ambos os sexos com idade igual ou superior a 40 anos. Material e métodos. Foi utilizado o Instrumento de Avaliação da Rede Social Pessoal e um questionário para caracterização sociodemográfica e sociofamiliar dos cuidadores, assim como para avaliação de necessidades. Resultados. Aproximadamente um terço dos cuidadores relatou a experiência de níveis moderados de sobrecarga associada à prestação de cuidados, enquanto mais de metade relatou a experiência de níveis elevados e muito elevados dessa sobrecarga; o apoio financeiro foi referido como a forma de apoio mais necessária no presente, ainda que o apoio em residência tenha sido percecionado por cerca de um terço dos cuidadores como a forma de apoio mais necessária no futuro; enquanto mais de metade considerou o apoio domiciliário e de unidade residencial (institucional). Estes cuidadores familiares referiram a "incerteza" e a "esperança" como os sentimentos mais frequentemente experienciados em relação ao futuro das suas vidas. No que respeita às redes sociais, as relações familiares são centrais a nível estrutural; em termos de caraterísticas funcionais da rede, foram observados valores mais elevados para as dimensões de reciprocidade do apoio e satisfação com a rede social. Implicações. Este estudo sublinha a importância da avaliação das necessidades de apoio dos cuidadores familiares de adultos com necessidades especiais. A sua implementação sistemática pode auxiliar a tomada de decisão baseada na evidência empírica para as intervenções do Serviço Social, tais como na planificação e gestão de respostas e serviços sociais, a par do reconhecimento e ativação dos recursos das próprias famílias, de forma a promover a eficiência dos recursos e eficácia das intervenções, focadas no bem-estar do cidadão com deficiência e das suas famílias. / Aim. The general increase in human life expectancy has resulted in greater rates of survival for adults with special care needs, as well as for their ageing family caregivers. This situation poses different and specific support needs, which represent a major challenge in social work interventions aimed at ensuring the well-being of disabled persons and their caregivers. Therefore, this study was aimed to describe the needs for support and the perceived social support network of family caregivers of adults with special care needs. Participants. The sample for this study comprised 40 family caregivers of disabled adults with special care needs, of both genders and aged 40 years old at minimum, who attended a long-term care facility at Coimbra Cerebral Palsy Association. Material and methods. Participants were administered a self-report questionnaire on socio-economic, family and caregiving needs, along with the Instrument for Assessing Personal Social Networks. Results. Nearly one third a family caregivers experienced moderate caregiving burden, while more than half experienced high or very high levels of caregiving burden; financial support was perceived as the most needed form of support in the present, but residential home care was identified as the most needed form of support in the future; while more than a half considered home-based support and residential support viable options for their disabled family members with special care needs. These family caregivers reported "uncertainty" and "hope" as the most common feelings towards their family life in the future. On the topic of social networks, family relations were found to be crucial at the structural level; in terms of functional characteristics of the network, elevated scores were observed for reciprocity of support and satisfaction with the social network. Implications. This study highlights the importance of increasing the specificity of the assessments of needs for support in family caregivers of disabled adults with special care needs. The systematic conduction of these assessments may assist evidence-based decision making in social work interventions, such as for planning and managing social services, acknowledging and activating the families' own resources, and ultimately promote the efficacy and effectiveness 57 interventions aimed at improving the well-being of disabled citizens and their families.