SAPO campus: aprendizagem, ensino e pessoas em rede

As escolas portuguesas do ensino n��o superior est��o dotadas com infraestruturas e equipamentos que permitem trazer o mundo para dentro da sala de aula, tornando o processo de ensino e de aprendizagem mais rico e motivador para os alunos. A ado����o institucional de uma plataforma que segue os princ��pios da web social, o SAPO Campus (SC), definida pela abertura, partilha, integra����o, inova����o e personaliza����o, pode ser catalisadora de processos de mudan��a e inova����o. O presente estudo teve como finalidade acompanhar o processo de ado����o do SC em cinco escolas, bem como analisar o impacto no processo de ensino e de aprendizagem e a forma como os alunos e professores se relacionam com esta tecnologia. As escolas envolvidas foram divididas em dois grupos: o primeiro grupo, constitu��do por tr��s escolas onde o acompanhamento teve uma natureza mais interventiva e presente, enquanto que no segundo grupo, composto por duas escolas, foram apenas observadas as din��micas que se desenvolveram no processo de ado����o e utiliza����o do SC. No presente estudo, que se assume como um estudo longitudinal de multicasos, foram aplicadas t��cnicas de tratamento de dados como a estat��stica descritiva, a an��lise de conte��do e a Social Network Analysis (SNA), com o objetivo de, atrav��s de uma triangula����o permanente, proceder a uma an��lise dos impactos observados pela utiliza����o do SC. Estes impactos podem ser situados em tr��s n��veis diferentes: relativos �� institui����o, aos professores e aos alunos. Ao n��vel da ado����o institucional de uma tecnologia, verificou-se que essa ado����o passa uma mensagem a toda a organiza����o e que, no caso do SC, apela �� participa����o coletiva num ambiente aberto onde as hierarquias se dissipam. Verificou-se ainda que deve implicar o envolvimento dos alunos em atividades significativas e a ado����o de estrat��gias din��micas, preferencialmente integradas num projeto mobilizador. A ado����o do SC foi ainda catalisadora de din��micas que provocaram mudan��as nos padr��es de consumo e de produ����o de conte��dos bem como de uma atitude diferente perante o papel da web social no processo de ensino e aprendizagem. As conclus��es apontam ainda no sentido da identifica����o de um conjunto de fatores, observados no estudo, que tiveram impacto no processo de ado����o como o papel das lideran��as, a import��ncia da forma����o de professores, a cultura das escolas, a integra����o num projeto pedag��gico e, a um n��vel mais prim��rio, as quest��es do acesso �� tecnologia. Algumas comunidades constru��das �� volta do SAPO Campus, envolvendo professores, alunos e a comunidade, evolu��ram no sentido da autossustenta����o, num percurso de reflex��o sobre as pr��ticas pedag��gicas e partilha de experi��ncias.

Contextual text mining

With the dramatic growth of text information, there is an increasing need for powerful text mining systems that can automatically discover useful knowledge from text. Text is generally associated with all kinds of contextual information. Those contexts can be explicit, such as the time and the location where a blog article is written, and the author(s) of a biomedical publication, or implicit, such as the positive or negative sentiment that an author had when she wrote a product review; there may also be complex context such as the social network of the authors. Many applications require analysis of topic patterns over different contexts. For instance, analysis of search logs in the context of the user can reveal how we can improve the quality of a search engine by optimizing the search results according to particular users; analysis of customer reviews in the context of positive and negative sentiments can help the user summarize public opinions about a product; analysis of blogs or scientific publications in the context of a social network can facilitate discovery of more meaningful topical communities. Since context information significantly affects the choices of topics and language made by authors, in general, it is very important to incorporate it into analyzing and mining text data. In general, modeling the context in text, discovering contextual patterns of language units and topics from text, a general task which we refer to as Contextual Text Mining, has widespread applications in text mining. In this thesis, we provide a novel and systematic study of contextual text mining, which is a new paradigm of text mining treating context information as the ``first-class citizen.'' We formally define the problem of contextual text mining and its basic tasks, and propose a general framework for contextual text mining based on generative modeling of text. This conceptual framework provides general guidance on text mining problems with context information and can be instantiated into many real tasks, including the general problem of contextual topic analysis. We formally present a functional framework for contextual topic analysis, with a general contextual topic model and its various versions, which can effectively solve the text mining problems in a lot of real world applications. We further introduce general components of contextual topic analysis, by adding priors to contextual topic models to incorporate prior knowledge, regularizing contextual topic models with dependency structure of context, and postprocessing contextual patterns to extract refined patterns. The refinements on the general contextual topic model naturally lead to a variety of probabilistic models which incorporate different types of context and various assumptions and constraints. These special versions of the contextual topic model are proved effective in a variety of real applications involving topics and explicit contexts, implicit contexts, and complex contexts. We then introduce a postprocessing procedure for contextual patterns, by generating meaningful labels for multinomial context models. This method provides a general way to interpret text mining results for real users. By applying contextual text mining in the ``context'' of other text information management tasks, including ad hoc text retrieval and web search, we further prove the effectiveness of contextual text mining techniques in a quantitative way with large scale datasets. The framework of contextual text mining not only unifies many explorations of text analysis with context information, but also opens up many new possibilities for future research directions in text mining.

Yritt��j��n sosiaalisten verkostojen muodostuminen, niihin vaikuttavat tekij��t, niiden rakenne ja merkitys yritt��j��lle

T��m��n tutkimuksen tavoitteena oli selvitt���� kuinka yritt��j��n verkostot muodostuvat ja mink��lainen niiden rakenne on. Tavoitteena oli my��s saada tietoa yritt��j��n sosiaalisten verkostojen merkityksest�� yritt��j��lle. Tutkimus toteutettiin laadullisena tutkimuksena. Tutkimusaineisto ker��ttiin strukturoidulla haastattelulla ja tutkimusaineiston rinnalla k��ytettiin yritt��jien havainnollistamia piirroksia sek�� tieteellisi�� julkaisuja ja kirjallisuutta. Haastateltavina oli sek�� nais- ett�� miesyritt��ji�� eri paikkakunnilta Etel��-Suomen alueelta. Tutkimustulosten mukaan yritt��jien verkostoissa voidaan havaita eri tasoja, jotka rakentuvat eri tavoilla ja ovat yritt��j��lle merkitykselt����n erilaisia. Verkoston eri tasoille sijoittuu yritt��j��lle t��rkeit�� ihmisi�� sen mukaan mit�� hy��ty�� ja arvoa heill�� yritt��j��lle on. Tulokset osoittavat, ett�� verkostojen rakentamiseen vaikuttavat sek�� liiketoiminnan laatu, motiivit sek�� yritt��j��n persoona. Tulokset ovat linjassa t��m��n tutkimuksen perustana olevien teorioiden kanssa. Viitteit�� l��ytyy my��s siit��, ett�� yritt��j��n sukupuolella on my��s merkityst�� siihen, millaiseksi sosiaaliset verkostot rakentuvat sek�� henkil��kohtaisessa el��m��ss�� ett�� liike-el��m��n puolella. Sosiaalisista verkostoista saatavat hy��dyt ovat moninaisia. Lis��tutkimuksia tulisi tehd�� tehokkaiden ty��kalujen kehitt��miseksi henkil��st��n ja yritt��j��n omien resurssien tunnistamiseksi. T��t�� kautta my��s yritt��jyyskasvatusta ja yritt��j��neuvontaa voitaisiin tehostaa.

A comprehensive study of multiplicative attribute graph model

Graphs are powerful tools to describe social, technological and biological networks, with nodes representing agents (people, websites, gene, etc.) and edges (or links) representing relations (or interactions) between agents. Examples of real-world networks include social networks, the World Wide Web, collaboration networks, protein networks, etc. Researchers often model these networks as random graphs. In this dissertation, we study a recently introduced social network model, named the Multiplicative Attribute Graph model (MAG), which takes into account the randomness of nodal attributes in the process of link formation (i.e., the probability of a link existing between two nodes depends on their attributes). Kim and Lesckovec, who defined the model, have claimed that this model exhibit some of the properties a real world social network is expected to have. Focusing on a homogeneous version of this model, we investigate the existence of zero-one laws for graph properties, e.g., the absence of isolated nodes, graph connectivity and the emergence of triangles. We obtain conditions on the parameters of the model, so that these properties occur with high or vanishingly probability as the number of nodes becomes unboundedly large. In that regime, we also investigate the property of triadic closure and the nodal degree distribution.

CAREGIVING FOR A FAMILY MEMBER WITH HEAD AND NECK CANCER

Objective: To know the perception of informal caregivers regarding the care for a family member with head and neck cancer. Methods: Qualitative study conducted between March and May 2014 in the radiotherapy outpatient center of the Centro de Alta Complexidade em Oncologia ��� CACON (Oncology High Complexity Center) of the Hospital Universit��rio de Bras��lia ��� HUB (University Hospital of Bras��lia) using semi-structured interviews with nine caregivers about the experience of caring for family members. Data underwent Content Analysis and four units of meaning were identified: ���Representation of cancer in the Family���, ���The care as debt, individual reward or reconstruction of family ties���, ���Repercussions of cancer on the caregiver���s personal life��� and ���Social support and network used by caregivers���. Results: Feelings of sadness and surprise at the moment of diagnosis were attributed to cancer, as well as the idea of punishment. The care was seen as personal satisfaction, accomplishment and opportunity for family rapprochement. Work overload and change in routine were altered functions. Religiosity, exchange of experience in the waiting room and institutional support appeared as coping strategies. Conclusion: The experience of caring for family members with head and neck cancer directly interferes in the lives of caregivers. Pointing out the institutional embracement as a strategy within the social network reinforces the importance of integrating the caregivers as a significant part of the health care plan developed by the health team.

With or without you: does partner satisfaction and partner-directed violence influence the presence of a partner on women's Facebook cover profile photographs?

Social network sites (SNSs) provide new opportunities for online self-presentation of millions of users. The cover profile photograph (CPP) along with written information regarding relationship status is a central component of online self-presentation, although their associations with actual romantic relationships are not clear. We investigated relationships between the presence of a current romantic partner on the CPP and the displayed relationship status and partner satisfaction, partner-directed violence and women's intrasexual competition with peers. A total of 28 % of the 158 women with a Facebook profile and being involved in a romantic relationship had their romantic partners on their CPP. As predicted, women with their partners on the CPP were more satisfied with their romantic relationship than others. Furthermore, women who did not have their partner on the CPP tended to conceal or lie in their displayed mating status suggesting that this may be a strategy how to attract another potential mate. The partner-directed violence and intrasexual competition hypotheses were not supported. Overall, the CPP and an honestly displayed relationship status is an expression of relationship satisfaction amongst women.

Comunica����o de risco em sa��de : a import��ncia do eWOM

Os surtos de doen��as infeciosas est��o atualmente no topo das preocupa����es relacionadas com riscos de sa��de, devido �� grande capacidade de dissemina����o e difus��o que as caracteriza e, n��o menos importante, por causa da eventual possibilidade de evolu����o dos surtos para o n��vel de pandemia. A n��vel global, os Governos e as organiza����es oficiais de sa��de est��o empenhados em criar planos para lidar com os riscos de sa��de, de forma a mitigar e controlar os efeitos nefastos provocados pelas doen��as infeciosas na popula����o. O mundo mudou, devido ��s novas tecnologias, tornou-se globalmente digital. As pessoas, hoje, t��m um novo estatuto, s��o atores sociais, unidos por la��os sociais no seio das redes digitais, dentro das quais, t��m acesso a uma vasta pan��plia de informa����o - acerca de assuntos de sa��de por exemplo, que flui livremente atrav��s da rede e diminui os limites entre o cidad��o comum e os profissionais e os peritos acerca dos mais diversos temas. O utilizador atual de internet, �� um "prosumer". A tecnologia permite-lhe pesquisar a informa����o que procura e, adicionalmente, compartilhar e comentar o resultado das suas pesquisas e da sua pr��pria experi��ncia pessoal. No contexto dos riscos de sa��de, a comunica����o �� um elemento preponderante em qualquer estrat��gia de planeamento de risco. Por sua vez, a internet, os novos media digitais e as redes sociais online, s��o ferramentas postas �� disposi����o dos consumidores, que lhes possibilitam a procura a partilha e o armazenamento de informa����o. Em virtude da import��ncia que assume a comunica����o nos cen��rios de crise, no ��mbito deste trabalho, centraremos o foco da nossa aten����o, nos fen��menos de comunica����o, conhecidos por ���passa-palavra��� e ���passa-palavra eletr��nico��� (WOM e WOM), revelando a sua influ��ncia na participa����o dos consumidores na din��mica comportamental de partilha de eWOM, dentro do grupo restrito de cada indiv��duo (eWOM dentro do grupo). Para produzir o nosso modelo concetual, usaram-se medidas adaptadas de outros construtos retirados da literatura, nomeadamente, ���Credibilidade da fonte���; ���Credibilidade de informa����o��� e ���eWOM Dentro do Grupo���.

Analysis and Visualisation of Crowd-sourced Tourism Data

C3S2E '16 Proceedings of the Ninth International C* Conference on Computer Science & Software Engineering

L'image principale de profil, symbole de l'individu connect��

Depuis le d��but du XXIe si��cle, un type particulier d���images a envahi l���espace public constitu�� par Internet : il s���agit des images principales de profil, ces images que les utilisateurs de sites de r��seaux sociaux choisissent pour les repr��senter aupr��s des autres individus connect��s. Comme le plus souvent il s���agit d���une image du corps de celui ou celle qui s���affiche ainsi, il est int��ressant de s���int��resser �� cette pratique en la rattachant �� des pratiques plus anciennes. Dans un premier temps, cette ��tude pr��sente donc une perspective socio-historique en notant la ressemblance de la pratique de l���image principale de profil avec celle de l���autoportrait et du portrait command��. Cela permet de remarquer plusieurs points de rupture ou d���inflexion dans l���usage de ce type d���images, mais aussi d���en d��gager les usages sociaux typiques. Ensuite, l���observation d���un lieu particulier d���Internet permet de tirer les conclusions suivantes : si l���usage principal de ces images est facile �� expliquer, elles servent �� symboliser une pr��sence dans des lieux non accessibles aux corps sensibles, ces images montrent toujours des ��l��ments qui permettent de d��duire une position sociale et elles sont fondamentalement identiques aux images produites avant Internet. Ensuite, l�����tude de ces images montre qu���il y a un v��ritable continuum dans la mani��re de d��voiler son intimit�� qui permet d���affirmer que la fronti��re entre public et priv�� n���existe pas sur Internet. Finalement, ces images montrent une absence de canon quant �� leur production et une multiplicit�� des fa��ons de se mettre en sc��ne qui laissent �� penser qu���elles sont devenues des symboles �� part enti��re dans la communication qui peut s�����tablir entre des ��trangers sur Internet.

Rela����es interorganizacionais e efici��ncia coletiva: um estudo de caso no arranjo produtivo local de confec����es do Agreste de Pernambuco

This work is a study in the Local Productive Arrangement of confections from Agreste of Pernambuco, as a relevant sector in economic and social aspect. This research has as central aim to understand how the inter-organizational relations influence the collective efficiency of arrangement. The theoretical framework employed highlights the approaches that deal with the benefits of business agglomeration for the develop��ment of firms and regions. It has discussed the approach of small and medium enter�� prises and industrial districts (SCHMITZ, 1997), which introduce the concept of col�� lective efficiency, explaining that only those externalities explained by Marshall (1996) are not sufficient to explain the competitive advantage of enterprises, expand��ing the idea that organizations achieve competitive advantage not acting alone. To examine the influences of relations in the collective efficiency, it has been taken as analytical perspective theory of social networks (GRANOVETTER, 1973, 1985; BURT, 1992; UZZI, 1997) because it has believe that this approach provides subsi�� dies for a structural analysis of social relationships in face the behavior of human ac��tion. By examining the organizations in a social network, you should understand the reason of this establishment of the relationship, their benefits, and as the information flow takes place and density of links between the actors (Powell; SMITH-DOERR, 1994). As for the methods, this study is characterized as a case study, in according to the purposed objectives, in addition to qualitative method. Also, due to recovering of the historical milestones of the arrangement, it is used a sectional approach with longitudinal perspective (VIEIRA, 2004). The primary and secondary data were used in order to understand the evolutionary process of the sector and their inter-actors re�� lationships in the arrangement for the promotion of development, for both, was used the contend and documentary analysis technique, respectively (DELLAGNELO ; SIL��VA, 2005). The approach of social networks has permitted understand that social re��lationships may extend the collective efficiency of the arrangement, and therefore need to develop policies that encourage the legalization of informal companies in ar��rangement, by showing up themselves representative. Thus, the relations estab�� lished in LPA of confections from Agreste of Pernambuco need for more effective mechanisms to broaden the collective efficiency. Therefore, this way as take place has directly benefited only a group of companies that are linked in some way the sup��portive institutions. So we can conclude that the inter-actor relations have limited the collective efficiency of LPA, being stimulated by the institutions in support only to groups of entrepreneurs, even those that produce external relations for all clustered companies

Redes interorganizacionais e inova����o: o caso do p��lo joalheiro de Bel��m

This work is a case study based on Bel��m Jewelry Pole, whose main issue is to understand how the social network (which the Pole is inserted) influences on innovation process on this area. The main objective is to analyze how interorganizational networks impacted/impact on the potential for innovation, creating both limits and opportunities for the companies development. The adopted method analyzed the historical jewelry industry trajectory since the beginning of mineral extraction in the city of Itaituba (in the Par�� State) until nowadays. Primary and secondary data were used allowing the view of the dynamics of the network during transformation periods of the main involved actors in the process. The prospect of embeddedness structural as analysis technique allowed verifying the quality of interactors ties, as well as the visualization of their structures. During the jewelry industry trajectory was verified a change in the quality of social relations, modifying the information flow, trust and associations of various links in the production chain. Both direct and indirect ties facilitated the access to remote networks entering new information related to new products, processes and market aspects. This interaction has led to raising the innovation potential causing a qualitative and quantitative improvement in competitiveness of organizations. Some embedded ties allowed the formation of partnerships bringing various economic earnings for those involved in the relationship. Thus, it is understood how aspects related to the position, architecture and quality of ties in a wide social network influenced on the innovation process and eventual jewelry industry trajectory

Design as a critical research

Historically the imaginary and the hegemonic thinking, in the Western globe north, has been marked by the epistemology and capitalists archetypes. Notwithstanding the design seem as a practice and discipline shielded on a simplistic discourse of functional / communicative efficiency, wandering through by multiple aestheticism apparently neutral in relation to the symbolic, but in fact they never are, because what really hapens is that the aesthetic appearance of the generated forms will always be a review of the powers ruling. We start from the understanding that the act of creating an aesthetic artifact, will also be a movement of inscription in a discursive platform (that precedes it), is in itself an narrative act and that fact represent a certain take place in relation to certain symbolic reality. On reflection shown if it sees design as a discipline and / or an instrument of action, whose operational relevance tends to question and simultaneously rehearsing a response, in which more than why interests answer to why. Apparently the design is a content mediator, but also, it is structure, is body, is idea. We think a design praxis as discipline and enrollment tool of critical thought and social transformation. For guiding research in this text, we propose the following question: Can the Design want for themselves an engagement with the symbolic in order to be an active part in the production of critical thinking in the place where it belongs? Methodologically our argument will be present in two differents moments: 1. a first, exploratory nature where we rescue the draw issues in the practice of design and 2. a second analytical nature concerning the subject issues (graphic and / or utility ) design and how it incorporates formal rites, political events and social practices of contemporary everyday life. We consider the praxis of design as a discipline and critical thinking enrollment tool as agents of social transformation. With this study we seek for contribute phenomenology design by studying the artifacts of configuration as well as the possible messages they convey and what impact they may have on the social network.

A influ��ncia das redes sociais na perce����o e escolha de um destino tur��stico na Gera����o Y

As redes sociais t��m potencial para influenciar os indiv��duos nas suas escolhas. O objetivo deste estudo �� perceber se as redes sociais t��m influ��ncia na perce����o e escolha de um destino tur��stico por parte dos utilizadores. No sentido de entender todo o processo de partilha de conte��dos por parte dos utilizadores online, no que toca �� divulga����o de destinos tur��sticos, foi escolhida como refer��ncia a maior rede social a n��vel mundial - o facebook. Foi adotada uma metodologia quantitativa, assente na constru����o de um question��rio colocado online a cerca de 250 pessoas, utilizadores de facebook, de ambos os sexos, e com idades compreendidas entre os 16 e os 32 anos ��� Gera����o Y ou gera����o Millennium. Os dados recolhidos foram tratados e analisados com o aux��lio do software SPSS e do Google Forms. Foi poss��vel, nesta investiga����o, identificar a sensibilidade dos indiv��duos face �� partilha de conte��dos tur��sticos realizados por amigos, familiares e ��cones nas redes sociais. Este estudo �� importante no sentido em que as empresas ligadas ao sector podem incentivar os utilizadores a partilhar as suas f��rias e conte��dos na p��gina da empresa e tornar-se, assim, numa estrat��gia de marketing potenciando quer a sua visibilidade organizacional, quer a do destino em causa.

A perspectiva do utilizador do Facebook relativamente �� escolha de alojamento tur��stico

Atualmente assistimos a um aumento exponencial do uso dos social media como meio para planear as viagens lazer, bem como procurar por informa����es relativas a hot��is, restaurantes e outras empresas na ind��stria de turismo e viagens. Os social media criaram um novo canal de distribui����o, tendo este influenciado e alterado a forma como os viajantes determinam o local onde v��o ficar alojados. �� importante que as empresas hoteleiras compreendam o comportamento dos consumidores face aos social media e, assim, determinar qual a forma de comunica����o e que informa����es dever��o disponibilizar nos seus sites. A t��tulo de exemplo, os hot��is conseguem interagir com os clientes atrav��s das redes sociais, como o Facebook, Instagram ou Youtube, partilhar diversos tipos de conte��dos informativos e prestar assist��ncia a quest��es. O presente estudo tem como objetivo compreender o uso das redes sociais, apresentando-se um maior foco na rede social Facebook, na promo����o de um estabelecimento hoteleiro e, com isto, determinar se a promo����o dos servi��os hoteleiros atrav��s deste meio, apresenta influ��ncia na tomada de decis��o de escolha de alojamento tur��stico. Por outro lado, pretendese analisar o impacto das avalia����es/recomenda����es realizadas pelos consumidores presentes no Facebook. Adotou-se uma metodologia quantitativa, atrav��s de um question��rio online. Para analisar as hip��teses de estudo recorreu-se a diversos testes estat��sticos. Os principais resultados demonstraram que s��o diversos os meios online e offline em que os consumidores se baseiam para fazer a sua decis��o de escolha de alojamento, sendo um destes o Facebook, que apresenta uma grande representatividade. O word-of-mouth, contabilizado atrav��s das opini��es dos antigos clientes presentes em sites de avalia����es e em redes sociais revela-se uma componente determinante no processo de recolha de informa����o sobre determinado alojamento e consequentemente influenciador na escolha de alojamento. Por ��ltimo, verificou-se que o Facebook apresenta ter um papel decisivo no processo de decis��o de escolha de alojamento tur��stico.

Caracter��sticas que podem influenciar a revisita����o a um canal do YouTube

Atualmente, encontramo-nos numa Era em que a internet se est�� a transformar numa ferramenta cada vez mais essencial no nosso dia-a-dia. A internet, mais especificamente, as redes sociais apareceram para que o consumidor esteja em permanente conex��o com o mundo, �� dist��ncia de um clique. Nesta investiga����o, o YouTube foi a rede social escolhida para o estudo e o objetivo principal �� perceber quais as caracter��sticas que um canal no YouTube deve ter para que os consumidores tenham inten����o de o revisitar. Na metodologia adaptou-se um modelo que avalia a qualidade de websites, o modelo WebQual. Foi elaborado um question��rio online, sendo as perguntas adaptadas para um canal de YouTube. Para analisar as hip��teses do estudo, foi feita uma regress��o linear m��ltipla. Foi ent��o poss��vel concluir que os constructos Utilidade, Facilidade de Uso, Entretenimento e Rela����o Complementar, influenciam a Inten����o de Revisitar logo, pode-se dizer que o canal do YouTube estudado apresenta qualidade aos olhos dos consumidores.