Models, Techniques and Applications of e-Learning Personalization

In recent years Web has become mainstream medium for communication and information dissemination. This paper presents approaches and methods for adaptive learning implementation, which are used in some contemporary web-interfaced Learning Management Systems (LMSs). The problem is not how to create electronic learning materials, but how to locate and utilize the available information in personalized way. Different attitudes to personalization are briefly described in section 1. The real personalization requires a user profile containing information about preferences, aims, and educational history to be stored and used by the system. These issues are considered in section 2. A method for development and design of adaptive learning content in terms of learning strategy system support is represented in section 3. Section 4 includes a set of innovative personalization services that are suggested by several very important research projects (SeLeNe project, ELENA project, etc.) dated from the last few years. This section also describes a model for role- and competency-based learning customization that uses Web Services approach. The last part presents how personalization techniques are implemented in Learning Grid-driven applications.

Discover the Thracians - An Approach for Use of 2D and 3D Technologies for Digitization of Cultural Heritage in the Field of E-learning

Information and communication technologies (ICT) offer an easier access to and a multi-perspective view of cultural heritage artifacts and may also enrich and improve cultural heritage education through the adoption of innovative learning/teaching methods. This paper examines the different practices and opportunities for digitization of cultural artifacts with historical significance and describes the work on a pilot project concerning the development of e-learning materials in the Thracian cultural and historical heritage. The proposed method presents an approach based on a combination of 2D and 3D technologies to facilitate the overall process of digitization of individual objects. This approach not only provides greater opportunities for presenting the Thracian heritage but also new perspectives for studying it - students, scientists, PhD students will have the opportunity to work with the materials without having access to them.

A critical evaluation of the volume, relevance and quality of evidence submitted by the tobacco industry to oppose standardised packaging of tobacco products

OBJECTIVES: To examine the volume, relevance and quality of transnational tobacco corporations' (TTCs) evidence that standardised packaging of tobacco products 'won't work', following the UK government's decision to 'wait and see' until further evidence is available. DESIGN: Content analysis. SETTING: We analysed the evidence cited in submissions by the UK's four largest TTCs to the UK Department of Health consultation on standardised packaging in 2012. OUTCOME MEASURES: The volume, relevance (subject matter) and quality (as measured by independence from industry and peer-review) of evidence cited by TTCs was compared with evidence from a systematic review of standardised packaging . Fisher's exact test was used to assess differences in the quality of TTC and systematic review evidence. 100% of the data were second-coded to validate the findings: 94.7% intercoder reliability; all differences were resolved. RESULTS: 77/143 pieces of TTC-cited evidence were used to promote their claim that standardised packaging 'won't work'. Of these, just 17/77 addressed standardised packaging: 14 were industry connected and none were published in peer-reviewed journals. Comparison of TTC and systematic review evidence on standardised packaging showed that the industry evidence was of significantly lower quality in terms of tobacco industry connections and peer-review (p<0.0001). The most relevant TTC evidence (on standardised packaging or packaging generally, n=26) was of significantly lower quality (p<0.0001) than the least relevant (on other topics, n=51). Across the dataset, TTC-connected evidence was significantly less likely to be published in a peer-reviewed journal (p=0.0045). CONCLUSIONS: With few exceptions, evidence cited by TTCs to promote their claim that standardised packaging 'won't work' lacks either policy relevance or key indicators of quality. Policymakers could use these three criteria-subject matter, independence and peer-review status-to critically assess evidence submitted to them by corporate interests via Better Regulation processes.

The choice not to use computers: A case study of community college faculty who do not use computers in teaching

The primary purpose of this investigation is to study the motives of community college faculty who decide not to use computers in teaching. In spite of the fact that many of the environmental blocks that would otherwise inhibit the use of the computers have been eliminated at many institutions, many faculty do not use a computer beyond its word-processing function. For the purpose of the study non-adoption of computers in teaching is defined as not using computers for more than word-processing. ^ The issues in the literature focus on resistance and assume a pro-innovation and pro-adoption bias. Previous research on the questions is primarily surveys with narrowly focused assumptions. This qualitative research directly asks the participants about their feelings, beliefs, attitudes, experiences, and behaviors in regard to computers in teaching. Through the interview process a number of other correlated issues emerge. ^ The investigation was conducted at Miami-Dade Community College, a large urban multicampus institution, in Miami-Dade, Florida. It was conducted through a series of in-depth phenomenological interviews. There were nine interviews; eight within the profile; two were pilots; and one was an extreme opposite of the profile. Each participant was interviewed three times for about 45 minutes. ^ The results indicate that the computer conflicts with the participants' values in regard to their teaching and their beliefs in regard to the nature of knowledge, learning, and the relationship that they wish to maintain with students. Computers require significant changes in the values, beliefs, and consequent behaviors. These are changes that the participants are not willing to make without overwhelming evidence that they are worth the sacrifice. For the participants, this worth is only definable as it positively improves learning. For even the experts the evidence is not there. Unlike the innovator, the high end computer user, these participants are not willing to adopt the computer on faith. ^

The will to write: Students' and teachers' perceptions of writing

This study investigated the perceptions of writing among secondary and post-secondary students and their teachers. The focus was on students' writing philosophy and influences, perceptions of the writing process, and perceptions of student writing skills, high stakes assessment tests, and writing across the curriculum. ^ An ethnographic case study was used to investigate the perceptions of writing among ten students and their English teachers in two high schools, a community college, and a university. To establish balance and ethnic plurality, seven females and three males representing the four large ethnic groups in South Florida—African American, Haitian American, European American and Latino—participated. During one four-month term, data from written samples of students' writing, formal and informal interviews, a student focus group, field notes, classroom observations, and a “think-aloud” protocol were collected. ^ Four themes emerged. First, Florida's writing assessment test has a negative influence on students' perceptions of writing. Students' motivation and attitudes as well as their confidence in their abilities were affected by practice and preparation in “recital writing.” Second, writing is a vehicle of social and personal transformation. Students believed that writing is a mean to connect to others and to create change in schools and communities. Third, students lacked the ability to connect writing, thinking and learning. Although students and teachers agree with statements about this connection, students failed to see the relevance of thinking and learning through writing in current or future courses, or in their future careers. Finally, writing context, teachers, schools, peers and gender influenced writing perceptions. Students believed that their writing philosophy, writing process, and perceptions of writing in academia and in the workplace are connected to these five factors. ^ The effect of the Florida writing test pervades students' and teachers' writing perceptions, making a stronger case for writing across the curriculum than previous research. Writing should help students see knowledge as interrelated, honor students' interests and values, and build relationships between and among students, schools and communities. In designing and implementing methods that support and sustain student writing, teachers should provide students with multiple opportunities to expand knowledge, learning, and connection through writing. ^

CANTAR PARA QUÊ? A música gospel no processo de midiatização: o caso do programa Esquenta!

Esta pesquisa tem por objetivo analisar sob quais aspectos se dá a interação entre mídia e religião, bem como as tensões ou continuidades que a aproximação do ‘sagrado’ com o ‘profano’ na sociedade midiatizada evoca. Para tal, elegemos como objeto de estudo a participação dos artistas evangélicos no Programa Esquenta!, exibido nas tardes de domingo, pela Rede Globo. Tomamos como referencial teórico os conceitos de cultura gospel, de midiatização, especialmente o conceito de bios midiático, e a discussão sobre secularização proposta por Habermas. A metodologia empregada prevê duas etapas. A primeira consiste numa uma análise de conteúdo de cinco edições do programa que contaram com a participação de artistas evangélicos, exibidas nos anos de 2013 e 2014. Nesse momento, o objetivo foi perceber o lugar que a música gospel ocupa dentro da proposta do programa. A segunda etapa consiste na realização de dois grupos de discussão, um formado por evangélicos e o outro por não-evangélicos, para compreender como os conteúdos religiosos deslocados de seu contexto original são ressignificados pela audiência. Resulta desta pesquisa a observação de que a participação dos artistas gospel no Esquenta! oferece novos modos de olhar que ampliam o conceito de cultura gospel, bem como legitima a mídia como lugar de experiência religiosa. Além disso, ilustra a perspectiva habermasiana ao refletir a dupla afetação entre universo religioso e vida secular, que emerge do entrecruzamento entre mídia e religião.

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.

Territorial administrative reorganization as a strategy for optimizing the structure of local government

Through the tough economic and social situation and the lack of values that has been experienced in recent years, local governments especially in Greece, Portugal, Italy and Spain have been forced to strongly consider the structure and size of their public sector. Despite some initiative to reduce the number of municipalities and provinces, little substantive progress has been made in improving the management of the local public Administration during this crisis. In this study a territorial administrative reorganization is proposed as a strategy to optimize the structure of local government, analyzing the Spanish situation in general, and an autonomous community in particular.

Differential ability and attainment in language and arithmetic of Dutch primary school pupils.

Background. In pre-school and primary education pupils differ in many abilities and competences (‘giftedness’). Yet mainstream educational practice seems rather homogeneous in providing age-based or grade-class subject matter approaches. Aims. To clarify whether pupils scoring initially at high ability level do develop and attain differently at school with respect to language and arithmetic compared with pupils displaying other initial ability levels. To investigate whether specific individual, family or educational variables co-vary with the attainment of these different types of pupils in school. Samples. Data from the large-scale PRIMA cohort study including a total of 8258 grade 2 and 4 pupils from 438 primary schools in The Netherlands. Methods. Secondary analyses were carried out to construct gain scores for both language and arithmetic proficiency and a number of behavioural, attitudinal, family and educational characteristics. The pupils were grouped into different ability categories (highly able; able; above average; average and below). Further analyses used Pearson correlations and analyses of variance both between and within ability categories. Cross-validation was done by introducing a cohort of younger pupils in pre-school and grouping both cohorts into decile groups based on initial ability in language and arithmetic. Results. Highly able pupils generally decreased in attainment in both language and arithmetic, whereas pupils in average and below average groups improved their language and arithmetic scores. Only with highly able pupils were some educational characteristics correlated with the pupils’ development in achievement, behaviour and attitudes. Conclusions. Pre-school and primary education should better match pupils’ differences in abilities and competences from their start in pre-school to improve their functioning, learning processes and outcomes. Recommendations for educational improvement strategies are presented in closing.

Minority Question in the Nigerian Governmental Process

Given the monumental friction, tension and acrimony occasioned by minority question in Nigeria’s governmental process, the paper is aimed at encapsulating the dynamics of minority question as it affects/impact the governmental process of Nigeria. It argues that minority question in Nigeria, just like other parts of the developed world, including Australia for example, reinforces itself in the culture and pervasive nature of ethnicity, defined in terms of group interest, sectional polarization, self-esteem and identification. Findings revealed that, Ethnicity is therefore considered as the epicenter of minority agitations as each of these groups struggle not in the nation’s interest, but in the interest of identifiable groups and regional hegemony for recognition and control oil resources. The paper concludes that the minority question cannot be divorce from governmental processes, because it has become a part of socio-political fabric of the Nigerian state, hence, the need for a virile federal structure that recognizes and responds positively to the interest of the minor groups is essential. The paper is a survey of literatures from existing works of scholars, generated to enhance the understanding of the subject matter under review; as such the methodology is strictly based on content secondary data.

CV-Muzar - Um ambiente de suporte a comunidades virtuais para apoio à aprendizagem em museus

Este artigo tem como objetivo mostrar que é possível incentivar a aprendizagem em museus através da construção de comunidades virtuais, com base em repositórios de objetos de aprendizagem (OA), ferramentas comunicacionais e produção de OA por parte dos visitantes. O enfoque é incentivar a aprendizagem no sentido de motivar a participação/envolvimento do visitante nas atividades da comunidade virtual. Nesta perspectiva, partimos do pressuposto de que a informação, a comunicação, a interação e a colaboração são essenciais para o processo de aprender no contexto informal dos museus. Acreditamos que a interação e a colaboração são partes integrantes do processo de aprendizagem proporcionado por comunidades virtuais e que o principal recurso de aprendizagem oferecido nessas comunidades são os objetos de aprendizagem. Assim sendo, por meio de um entendimento do aprender baseado na comunicação e na linguagem, percebemos os museus interativos como espaços discursivos em que os visitantes mergulham e por eles são modificados. Neste sentido, argumentamos que as comunidades virtuais de aprendizagem, com a possibilidade de virtualizar a linguagem, são excelentes mecanismos para ampliar o poder comunicacional dos museus, criando novas estratégias comunicativas. Para atingir o objetivo, foi necessário reunir quatro conceitos técnicos da área de informática, são eles: comunidades virtuais de aprendizagem; objetos de aprendizagem; metadados e mapas de tópicos. A junção destes conceitos permitiu a construção do ambiente de comunidade virtual, denominada CV-Muzar. Diante do exposto, de modo a identificar os meios pelos quais se podem motivar os visitantes a realmente produzirem novos conhecimentos durante sua visita informal ao museu, examinando essa questão tanto do ponto de vista quantitativo, como também qualitativamente, foi realizada uma experimentação do ambiente com um grupo de pessoas convidadas segundo suas áreas de formação.

Security and Trust in Distributed Computation

We propose three research problems to explore the relations between trust and security in the setting of distributed computation. In the first problem, we study trust-based adversary detection in distributed consensus computation. The adversaries we consider behave arbitrarily disobeying the consensus protocol. We propose a trust-based consensus algorithm with local and global trust evaluations. The algorithm can be abstracted using a two-layer structure with the top layer running a trust-based consensus algorithm and the bottom layer as a subroutine executing a global trust update scheme. We utilize a set of pre-trusted nodes, headers, to propagate local trust opinions throughout the network. This two-layer framework is flexible in that it can be easily extensible to contain more complicated decision rules, and global trust schemes. The first problem assumes that normal nodes are homogeneous, i.e. it is guaranteed that a normal node always behaves as it is programmed. In the second and third problems however, we assume that nodes are heterogeneous, i.e, given a task, the probability that a node generates a correct answer varies from node to node. The adversaries considered in these two problems are workers from the open crowd who are either investing little efforts in the tasks assigned to them or intentionally give wrong answers to questions. In the second part of the thesis, we consider a typical crowdsourcing task that aggregates input from multiple workers as a problem in information fusion. To cope with the issue of noisy and sometimes malicious input from workers, trust is used to model workers' expertise. In a multi-domain knowledge learning task, however, using scalar-valued trust to model a worker's performance is not sufficient to reflect the worker's trustworthiness in each of the domains. To address this issue, we propose a probabilistic model to jointly infer multi-dimensional trust of workers, multi-domain properties of questions, and true labels of questions. Our model is very flexible and extensible to incorporate metadata associated with questions. To show that, we further propose two extended models, one of which handles input tasks with real-valued features and the other handles tasks with text features by incorporating topic models. Our models can effectively recover trust vectors of workers, which can be very useful in task assignment adaptive to workers' trust in the future. These results can be applied for fusion of information from multiple data sources like sensors, human input, machine learning results, or a hybrid of them. In the second subproblem, we address crowdsourcing with adversaries under logical constraints. We observe that questions are often not independent in real life applications. Instead, there are logical relations between them. Similarly, workers that provide answers are not independent of each other either. Answers given by workers with similar attributes tend to be correlated. Therefore, we propose a novel unified graphical model consisting of two layers. The top layer encodes domain knowledge which allows users to express logical relations using first-order logic rules and the bottom layer encodes a traditional crowdsourcing graphical model. Our model can be seen as a generalized probabilistic soft logic framework that encodes both logical relations and probabilistic dependencies. To solve the collective inference problem efficiently, we have devised a scalable joint inference algorithm based on the alternating direction method of multipliers. The third part of the thesis considers the problem of optimal assignment under budget constraints when workers are unreliable and sometimes malicious. In a real crowdsourcing market, each answer obtained from a worker incurs cost. The cost is associated with both the level of trustworthiness of workers and the difficulty of tasks. Typically, access to expert-level (more trustworthy) workers is more expensive than to average crowd and completion of a challenging task is more costly than a click-away question. In this problem, we address the problem of optimal assignment of heterogeneous tasks to workers of varying trust levels with budget constraints. Specifically, we design a trust-aware task allocation algorithm that takes as inputs the estimated trust of workers and pre-set budget, and outputs the optimal assignment of tasks to workers. We derive the bound of total error probability that relates to budget, trustworthiness of crowds, and costs of obtaining labels from crowds naturally. Higher budget, more trustworthy crowds, and less costly jobs result in a lower theoretical bound. Our allocation scheme does not depend on the specific design of the trust evaluation component. Therefore, it can be combined with generic trust evaluation algorithms.

A motivação na aprendizagem da matemática no pré-escolar e no 1.º ciclo

Relatório de estágio para obtenção de grau mestre em Educação pré-escolar e Ensino do 1.º ciclo do ensino básico

O percurso escolar e a orientação vocacional dos jovens com síndrome de asperger

Trabalho apresentado à Escola Superior de Educação de Paula Frassinetti realizado no âmbito da Tese de Mestrado

A motivação na aprendizagem da matemática no pré-escolar e no 1.º ciclo

Relatório de estágio para obtenção de grau mestre em Educação pré-escolar e Ensino do 1.º ciclo do ensino básico