Στην εργασία αυτή υλοποιήθηκε μια μηχανή αναζήτησης προσώπων στο Social web. Η αναζήτηση γίνεται σε ιστοσελίδες κοινωνικής δικτύωσης όπως το Twitter, το Myspace, και το Flickr με βάση το όνομα του χρήστη ή το ονοματεπώνυμό του. Η αναζήτηση αυτή επεκτείνεται και σε ιστολόγια που βρίσκονται στον παγκόσμιο ιστό. Ύστερα βρίσκουμε σε ποιες από τις παραπάνω ιστοσελίδες έχει λογαριασμό το προς αναζήτηση άτομο και παραθέτουμε τη διεύθυνση του προφίλ του. Εάν του ανήκει κάποιο ιστολόγιο ή συμμετέχει σε κάποιο άλλο, αποθηκεύουμε στη βάση δεδομένων τα Feeds τα οποία έχει δημιουργήσει. Με τον ίδιο τρόπο ενεργούμε εάν το συγκεκριμένο άτομο έχει λογαριασμό στην ιστοσελίδα Twitter. / In this work we materialized a search engine of persons in social web. The search involves web pages on social networking such as Twitter, Myspace and Flickr, using as a base the username or his full name. This search also extends in blogs that are to be found in the WWW. Then, we store the feeds we mine from the users' accounts.

Title: Is trust in SEM an intergenerational trait? Date: 2018-05-22 Level: Bachelor Thesis in International Marketing Author: Jesper Fredlund 930427 & Timmy Biedron 961128 Supervisor: Henrietta Nilson Problem formulation: How do age correlate with trust and attitude towards SEM on Google in Sweden? Purpose: The purpose of this study is to see if the Swedish Digital Natives are more likely to be trusting search engine marketing, as opposed to the older generations of Digital Immigrants, and by doing this gaining a better understanding of the attitudes towards search engines and search enginemarketing in Sweden. Theoretical framework: The theoretical framework of this paper consists of theories about BannerBlindness, Text Blindness, EHS Theory, Search Engine Marketing, Sponsored Links, Organic Links,Generations. Methodology: This is a quantitative study with 429 respondents in an online survey. It contains Swedish users of search engines divided into groups of those born before 1980 and those born after. Empirical findings: Our study found out that Digital Natives are slightly more likely to favour Search Engine Marketing than Digital Immigrants are. Conclusion: No matter the target of your Search Engine Marketing campaign you should approach itcautiously, since both Digital Natives and Digital Immigrants have been shown to hold a negative bias against these campaigns over organic links. Keywords: SEM, SEA, Search Engines, Search Behaviour, Organic links, Sponsored links.

Submitted by Noeme Timbo (noeme.timbo@metodista.br) on 2017-08-18T19:32:47Z No. of bitstreams: 1 Pedro Henrique Toth.pdf: 1861697 bytes, checksum: a0d2269d6e72369b9e0007421d57c2e5 (MD5) / Made available in DSpace on 2017-08-18T19:32:47Z (GMT). No. of bitstreams: 1 Pedro Henrique Toth.pdf: 1861697 bytes, checksum: a0d2269d6e72369b9e0007421d57c2e5 (MD5) Previous issue date: 2017-04-03 / In times when the use of the internet and the web are becoming more and more present in the life of the human being, it’s possible to observe the increasing rise of search engines in people's daily life, solving problems such as the simple task of locating a musical sheet or even elaborated scientific articles. Speed, accuracy and simplicity make search engines, today, essential tools in the life of the modern and connected human being, thus creating a dependency of them in the man’s life. The objective of this research is to draw a historical line, addressing the main technologies and scientists involved in the technological development that resulted in the search engines. To do so, this research relies on a solid bibliographic review of books and articles about technology and communication, as well as magazines and reports about the subjects involved. The result of the research culminated in a technological perspective, based on the facts and technologies presented, of an integrated search engine that may become part of the human daily life soon. / Em tempos onde o uso da internet e da web se faz cada vez mais presente na vida do ser humano, observa-se a crescente ascensão dos mecanismos de busca no dia a dia das pessoas, resolvendo problemas como a simples tarefa de se localizar uma partitura musical ou ainda elaborados artigos científicos. A velocidade, acurácia e simplicidade fazem dos mecanismos de busca, hoje, ferramentas essenciais na vida do ser humano moderno e conectado, criando assim uma dependência dos mesmos na vida do homem. O objetivo desta pesquisa é traçar uma linha histórica, abordando as principais tecnologias e cientistas envolvidos no desenvolvimento tecnológico que resultou nos mecanismos de busca. Para tanto, esta pesquisa se apoia em uma revisão bibliográfica sólida em livros e artigos sobre tecnologia e comunicação, bem como revistas e reportagens sobre os assuntos envolvidos. O resultado da pesquisa culminou em uma perspectiva tecnológica, baseada nos fatos e tecnologias apresentados, de um mecanismo de busca integrado, que poderá se tornar parte do cotidiano humano em um futuro não muito distante.

[pt] Uma máquina de busca precisa constantemente revisitar páginas Web para manter seu repositório local atualizado. Uma política de revisitação deve ser empregada para construir um escalonamento de revisitações que mantenha o repositório o mais atualizado possível utilizando os recursos disponíveis. Para evitar sobrecarga de servidores Web, a política de revisitação deve respeitar um tempo mínimo entre requisições consecutivas a um mesmo servidor. Esta regra é chamada restrição de politeness. Devido ao porte do problema, consideramos que uma política de revisitação é eficiente se o tempo médio para escalonar uma revisitação é sublinear no número de páginas do repositório. Neste sentido, quando a restrição de politeness é considerada, não conhecemos política eficiente com garantia teórica de qualidade. Nesta pesquisa investigamos três políticas eficientes que respeitam a restrição de politeness, chamadas MERGE, RANDOM e DELAYED. Fornecemos fatores de aproximação para o nível de atualização do repositório quando empregamos as política MERGE ou RANDOM. Demonstramos que 0,77 é um limite inferior para este fator de aproximação quando empregamos a política RANDOM, e apresentamos uma conjectura de que 0,927 é um limite inferior para este fator de aproximação quando empregamos a política MERGE. As políticas também são avaliadas através da simulação da execução destas políticas para manter o nível de atualização de um repositório contendo 14,5 milhões de páginas Web. Um repositório contendo artigos da Wikipedia também é utilizado nos experimentos, onde podemos observar que a política MERGE apresenta melhores resultados que uma estratégia gulosa natural para este repositório. A principal conclusão desta pesquisa é que existem políticas simples e eficientes para o problema de revisitação de páginas Web, que perdem pouco em termos do nível de atualização do repositório mesmo quando consideramos a restrição de politeness. / [en] A search engine needs to continuously revisit web pages in order to keep its local repository up-to-date. A page revisiting schedule must be defined to keep the repository up-to-date using the available resources. In order to avoid web server overload, the revisiting policy must respect a minimum amount of time between consecutive requests to the same server. This rule is called politeness constraint. Due to the large number of web pages, we consider that a revisiting policy is efficient when the mean time to schedule a revisit is sublinear on the number of pages in the repository. Therefore, when the politeness constraint is considered, there are no existing efficient policies with theoretical quality guarantees. We investigate three efficient policies that respect the politeness constraint, called MERGE, RANDOM and DELAYED. We provide approximation factors for the repository’s up-to-date level for the MERGE and RANDOM policies. Based on these approximation factors, we devise a 0.77 lower bound for the approximation factor provided by the RANDOM policy and we present a conjecture that 0.927 is a lower bound for the approximation factor provided by the MERGE policy. We evaluate these policies through simulation experiments which try to keep a repository with 14.5 million web pages up-to-date. Additional experiments based on a repository with Wikipedia’s articles concluded that the MERGE policy provides better results than a natural greedy strategy. The main conclusion of this research is that there are simple and efficient policies that can be applied to this problem, even when the politeness constraint must be respected, resulting in a small loss of repository’s up-to-date level.

DISSERTATION Submitted in partial fulfilment of the requirements for the degree MAGISTER TECHNOLOGIAE in INFORMATION TECHNOLOGY in the FACULTY OF BUSINESS INFORMATICS at the CAPE PENINSULA UNIVERSITY OF TECHNOLOGY 2006 / Research has shown that most website developers first build a website and only later focus on the ‘searchability’ and ‘visibility’ of the website. Companies spend large amounts of money on the development of a website which sadly cannot be indexed by search engines, is rejected by directory editors and which is furthermore invisible to crawlers. The primary objective of this dissertation is to compare and report on the impact of text-based versus graphic-based hyperlinks on website visibility. The method employed in the research was to develop two e-Commerce based websites with the same functionality, contents and keywords, however utilising different navigation schemes. The one website had all hyperlinks coded in text-phrases, while the other embedded the hyperlinks in graphics. Both websites were submitted to the same search engines at the same time. A period of eight months was allowed to ensure that the websites drew sufficient ‘hits’ to enable a comparative analysis to be conducted. Two industry standard website ranking programs were used to monitor how the two websites feature in the search engine rankings. Graphs as well as text-based reports produced by the ranking programs and the t-test were used to compare and analyse the results. Evidence based on the reviewed literature indicated that there are conflicting reports on the impact of text as opposed to graphic hyperlinks on website visibility. However, there is unsupported evidence that text hyperlinks achieved higher rankings than graphics-based hyperlinks. Although the ‘human website browsers’ find a certain amount of graphical aids conducive to easier navigation, ‘search engine crawlers’ find many of these same graphic aids impossible to index. The study supported that the graphic-based website ranked higher than the text-based website, which calls for a balance to be found between these two extremes. This balance would satisfy both ‘human website browsers’ and ‘search engine crawlers’. It is posited by this author that this dissertation provides website designers with the abilities to achieve such a balance. KEYWORDS: search engines, hyperlinks, text, graphics, visibility, navigation, ecommerce, design.

DISSERTATION Submitted in partial (50%) fulfilment of the requirements for the degree MAGISTER TECHNOLOGIAE in BUSINESS INFORMATION SYSTEMS in the FACULTY OF BUSINESS INFORMATICS at the CAPE PENINSULA UNIVERSITY OF TECHNOLOGY 2005 / The growth of the World Wide Web has spawned a wide collection of new information sources, which has also left users with the daunting task of determining which sources are valid. Most users rely on the web because of the low cost of information retrieval. Other advantages of the web include the convenience in terms of time and access as well as the ability to easily record results. It is also claimed that the web has evolved into a powerful business tool. Examples include highly popular business services such as Amazon.com and Kalahari.net. It is estimated that around 80% of users utilise search engines to locate information on the Internet. This of course places emphasis on the underlying importance of webpages being listed on search engines indices. It is in the interest of any company to pursue a strategy for ensuring a high search engine ranking for their e-Commerce website. This will result in more visits from users and possibly more sales. One of the strategies for ensuring a high search engine ranking is the placement of keywords in the body text section of a webpage. Empirical evidence that the placement of keywords in certain areas of the body text will have an influence on the websites’ visibility to search engines could not be found. The author set out to prove or disprove that keywords in the body text of a webpage will have a measurable effect on the visibility of a website to search engine crawlers. From the findings of this research it will be possible to create a guide for e- Commerce website authors on the usage, placing and density of keywords within their websites. This guide, although it will only focus on one aspect of search engine visibility, could help e-Commerce websites to attract more visitors and to become more profitable.

Thesis (DTech (Informatics))--Cape Peninsula University of Technology, 2017. / Any e-commerce venture using a website as main shop-front should invest in marketing their website. Previous empirical evidence shows that most Search Engine Marketing (SEM) spending (approximately 82%) is allocated to Pay Per Click (PPC) campaigns while only 12% was spent on Search Engine Optimisation (SEO). The remaining 6% of the total spending was allocated to other SEM strategies. No empirical work was found on how marketing expenses compare when used solely for either the one or the other of the two main types of SEM. In this study, a model will be designed to guide the development of a dual SEM strategy.

Esta tese reflete sobre um processo específico: a transmídia e seu potencial de criar novas possibilidades interativas e artísticas apropriando-se dos ambientes digitais. A disseminação tecnológica no cotidiano das pessoas nas últimas décadas alavanca uma proliferação e diversidade de mídias que propiciam um ambiente fértil para desenvolvimento de processos transmidiáticos. Apesar de a transmídia não ser um fenômeno novo, as novas possibilidades que o ambiente digital hiperconectado e rico em novas mídias e interfaces traz são inúmeras, não apenas nas áreas das artes, mas também em quaisquer áreas que envolvam comunicação, informação e interação. Novos modos de interação trazem consigo novas possibilidades, tanto quanto novos desafios. O foco deste trabalho é o contexto atual transmidiático e as oportunidades e desafios emergentes de seu uso. O escopo compreende também a apresentação e análise de algumas obras de arte que se beneficiaram do uso da transmídia como processo fundamental para seu desenvolvimento, razão pela qual não seriam possíveis em outro cenário que não o transmidiático atual. Foram desenvolvidos pela autora quatro trabalhos de arte como experimentação transmídia que refletem os resultados obtidos. / This thesis reflects about a particular process: the transmedia and its potential to create new interactive and artistic possibilities that appropriate from the digital environments. The technological dissemination in people\'s daily lives in the past decades leverages a media proliferation and diversification that propitiate a fertile environment for the development of transmedia processes. Although transmedia is not a new phenomenon, the new possibilities that the actual digital environment provide -- hiper-connected and rich in new media and interfaces -- are countless, not only in the field of Arts, but also in any other areas related to communication, information and interaction. New interactive modes bring with themselves new possibilities as much as new challenges. The focus of this work is the emergent transmedia context and the opportunities and challenges that rise from its use. The scope here also involves the presentation and analysis of some artworks that take advantage from the use of transmedia as a fundamental process to their development, not being able to exist in any other scenario than the present one. It was developed by the author four artworks as transmedia experimentation that reflect the achieved results.

[pt] Links patrocinados são aqueles que aparecem em destaque nos resultados de pesquisas em máquinas de busca na Internet e são grande fonte de receita para seus provedores. Para os anunciantes, que fazem ofertas por palavras-chave para aparecerem em destaque nas consultas dos usuários, são uma oportunidade de divulgação da marca, conquista e manutenção de clientes. Um dos desafios das máquinas de busca neste modelo de negócio é selecionar os anunciantes que serão exibidos a cada consulta de modo a maximizar sua receita em determinado período. Este é um problema tipicamente online, onde a cada consulta é tomada uma decisão sem o conhecimento prévio das próximas consultas. Após uma decisão ser tomada, esta não pode mais ser alterada. Nesta dissertação avaliamos experimentalmente algoritmos propostos na literatura para solução deste problema, comparando-os à solução ótima offline, em simulações com dados sintéticos. Supondo que o conjunto das consultas diárias obedeça a uma determinada distribuição, propomos dois algoritmos baseados em informações estocásticas que são avaliados nos mesmos cenários que os outros algoritmos. / [en] Sponsored links are those that appear highlighted at Internet search engine results. They are responsible for a large amount of their providers’ revenue. To advertisers, that place bids for keywords in large auctions at Internet, these links are the opportunity of brand exposing and achieving more clients. To search engine companies, one of the main challenges in this business model is selecting which advertisers should be allocated to each new query to maximize their total revenue in the end of the day. This is a typical online problem, where for each query is taken a decision without previous knowledge of future queries. Once the decision is taken, it can not be modified anymore. In this work, using synthetically generated data, we do experimental evaluation of three algorithms proposed in the literature for this problem and compare their results with the optimal offline solution. Considering that daily query set obeys some well known distribution, we propose two algorithms based on stochastic information, those are evaluated in the same scenarios of the others.

The aim of this thesis is to describe in detail the current ways of optimizing websites for search engines (SEO) and to apply them in a broader marketing strategy of italian restaurant La Casa Degli Amici. The thesis presents evidence about the importance of SEO for marketing and can be used as a template for optimizing you own website. This thesis is divided into two main parts - theoretical and practical. The theoretical part explains the concepts used in the design and implementation of the practical part. The theoretical part considers 3 main subjects - search engine, users and SEO which represents website creation and optimization. This thesis describes the history of search engines and the way search engines analyze and evaluate a website. It also describes user search strategies and the way users read the search results. In the SEO section we show its advantages, brief history, SEO strategies and description of techniques and tools that can be used for SEO. In the practical part we put together a marketing strategy which consists of website creation, implementation of selected SEO techniques and social network marketing. Implementation of the marketing strategy is evaluated on data obtained during the period between 1. 8. 2016 and 31. 11. 2016. Owner of the restaurant has provided data on sales which were used for overall evaluation of implemented marketing strategy.