Nowadays, the establishment of new touch screen technology has changed significantly the way we navigate on the Internet. The requirement to design websites that adapt to various artifacts such as touch screen computers are increasingly a need to consider. The purpose of this study is to discover - What are the specific usability requirements should be addressed in designing of websites for touch screen computers? - In order to examine the essay’s question, it presents a study where five people visiting three different websites on the touch screen computer Ipad. The study was conducted using a participant and structured interview observation in form of a think-aloud method. With the help of video equipment, information was gathered. Respondent's discussions are presented and the study's results are analyzed using a qualitative procedure. The research has contributed mainly to individualize the possible usability problems that concerned interaction with websites on the touch screen computer Ipad. Based on the analysis and the qualitative study it has come usability requirements related to aspects of the website's navigation, interaction and feedback. / I dagens samhälle har etableringen av ny pekskärmsteknik betydligt ändrat vårt sätt att navigera på internet. Kravet på att utforma webbplatser som skall anpassas till olika artefakter så som pekskärmsdatorer blir allt mer ett behov att ta hänsyn till. Syftet med denna studie är att upptäcka ”Vilka särskilda användbarhetskrav bör ställas vid utformning av webbplatser för pekskärmsdatorer?” För att undersöka uppsatsens frågeställning presenteras en studie där fem personer besöker tre webbplatser på pekskärmsdatorn Ipad. Studien genomfördes med hjälp av en deltagande och strukturerad observationsintervju i form av en tänk-högt-metod. Med hjälp av videoutrustning samlades informationen in. Respondenternas samtal presenterades och studiens resultat analyserades med en kvalitativ procedur. Forskningen bidrog framförallt med information om att individualisera de möjliga användbarhetsproblem som finns vid interaktion med webbplatser på pekskärmsdatorn Ipad. Utifrån analysen och den kvalitativa underökningen har det kommit fram användbarhetskrav som rör aspekter inom webbplatsens navigering, interaktion och återkoppling.

Šiame darbe sprendžiama mobiliųjų įrenginių internetinės vartotojo sąsajos vartojamumo problema, kuri kuo toliau, tuo labiau tampa aktualesnė, kadangi vis daugiau paslaugų bei veiklos procesų yra perkeliama į mobiliąją erdvę. Vartojamumas tampa vienas iš svarbesnių veiksnių, lemiančių internetinės sistemos išlikimo bei naudojimo perspektyvas. Tačiau išlieka atviras klausimas – ar kuriant internetinę sistemą tikslinga investuoti laiką bei resursus ir greta įprastinės vartotojo sąsajos vystyti dar ir mobiliesiems įrenginiams pritaikytą sąsają. Nagrinėjama sritis yra pakankamai nauja todėl tokio pobūdžio tyrimai arba bent jau jų rezultatai dar nėra plačiai paplitę bei skelbiami. Analizės metu buvo išnagrinėti vartojamumo tyrimo metodai bei mobiliųjų įrenginių internetinės vartojo sąsajos rekomendacijos. Pasitelkus dalį išanalizuotų metodų vartojamumo požiūriu buvo ištirtos dvi eksperimentinės tos pačios sistemos vartotojo sąsajos – mobilioji bei įprastinė, naudojamos mobiliajame įrenginyje. Eksperimentui reikalingos vartotojo sąsajos buvo realizuotos sukūrus bei įdiegus „naujienų tinklaraščio“ informacinę sistemą, turinčią tiek įprastinę tiek mobiliesiems įrenginiams pritaikytas vartotojo sąsajas. Vartojamumo tyrime buvo panaudoti trys vartojamumo tyrimo metodai, kurių pagalba sistemos vartojamumas tiriamas keliais aspektais: rekomendacijų laikymasis, sistemos techninės savybės, vartotojo sąveika su sistema. Gauti rezultatai leidžia daryti išvadą, jog kuriant internetinę... [toliau žr. visą tekstą] / Mobile technologies are evolving very fast and according to specialists they will become the main tool used to access the internet in the 10 next years. So it is natural that more and mode services are served through mobile internet. As all regular applications, mobile web applications should be usable and user friendly. These aspects make a quite big influence on success of software. The main goal of this work is to make a usability research on web user interface for mobile devices. This research will show if there is a sense to make separate user interface for mobile devices when you are going to develop web system which will be also used by mobile devices users. The field of this work is web user interface for mobile devices and its usability. The object of this work is user interface usability research methodology.

<p>Many Single Nucleotide Polymorphisms (SNPs) found in coding or regulatory regions within the human genome lead to phenotypic differences that make prediction of physical appearance, based on genetic analysis, potentially useful in forensic investigations. Complex traits such as pigmentation can be predicted from the genome sequence, provided that genes with strong effects on the trait exist and are known. Phenotypic traits may also be associated with variations in gene expression due to the presence of SNPs in promoter regions. In this project, the identification of genes associated with these physical traits of potential forensic relevance have been collated from the literature using a text mining platform and hand curation. The SNPs associated with these genes have been acquired from public SNP repositories such as the International HapMap project, dbSNP and Ensembl. Characterization of different population groups based on the SNPs has been performed and the results and data stored in a MySQL database. This database contains SNP genotyping data with respect to physical phenotypic differences of forensic interest. The potential forensicrelevance of the SNP information contained in this database has been verified through in silico SNP analysis aimed at establishing possible relationships between SNP occurrence and phenotype. The software used for this analysis is MATCH&trade / .</p>

Magister Scientiae - MSc / Many Single Nucleotide Polymorphisms (SNPs) found in coding or regulatory regions within the human genome lead to phenotypic differences that make prediction of physical appearance, based on genetic analysis, potentially useful in forensic investigations. Complex traits such as pigmentation can be predicted from the genome sequence, provided that genes with strong effects on the trait exist and are known. Phenotypic traits may also be associated with variations in gene expression due to the presence of SNPs in promoter regions. In this project, the identification of genes associated with these physical traits of potential forensic relevance have been collated from the literature using a text mining platform and hand curation. The SNPs associated with these genes have been acquired from public SNP repositories such as the International HapMap project, dbSNP and Ensembl. Characterization of different population groups based on the SNPs has been performed and the results and data stored in a MySQL database. This database contains SNP genotyping data with respect to physical phenotypic differences of forensic interest. The potential forensicrelevance of the SNP information contained in this database has been verified through in silico SNP analysis aimed at establishing possible relationships between SNP occurrence and phenotype. The software used for this analysis is MATCH™. Data management and access has been enhanced by the use of a functional web-based front-end which enables the users to extract and display SNP information without running complex Structured Query Language (SQL) statements from the command line. This Forensic SNP Phenotype resource can be accessed at http://forensic.sanbi.ac.za/alecia_forensics/Index.html / South Africa

The rapid growth of the World Wide Web in the last decade makes it the largest publicly accessible data source in the world, which has become one of the most significant and influential information revolution of modern times. The influence of the Web has impacted almost every aspect of humans' life, activities and fields, causing paradigm shifts and transformational changes in business, governance, and education. Moreover, the rapid evolution of Web 2.0 and the Social Web in the past few years, such as social blogs and friendship networking sites, has dramatically transformed the Web from a raw environment for information consumption to a dynamic and rich platform for information production and sharing worldwide. However, this growth and transformation of the Web has resulted in an uncontrollable explosion and abundance of the textual contents, creating a serious challenge for any user to find and retrieve the relevant information that he truly seeks to find on the Web. The process of finding a relevant Web page in a website easily and efficiently has become very difficult to achieve. This has created many challenges for researchers to develop new mining techniques in order to improve the user experience on the Web, as well as for organizations to understand the true informational interests and needs of their customers in order to improve their targeted services accordingly by providing the products, services and information that truly match the requirements of every online customer. With these challenges in mind, Web mining aims to extract hidden patterns and discover useful knowledge from Web page contents, Web hyperlinks, and Web usage logs. Based on the primary kinds of Web data used in the mining process, Web mining tasks can be categorized into three main types: Web content mining, which extracts knowledge from Web page contents using text mining techniques, Web structure mining, which extracts patterns from the hyperlinks that represent the structure of the website, and Web usage mining, which mines user's Web navigational patterns from Web server logs that record the Web page access made by every user, representing the interactional activities between the users and the Web pages in a website. The main goal of this thesis is to contribute toward addressing the challenges that have been resulted from the information explosion and overload on the Web, by proposing and developing novel Web mining-based approaches. Toward achieving this goal, the thesis presents, analyzes, and evaluates three major contributions. First, the development of an integrated Web structure and usage mining approach that recommends a collection of hyperlinks for the surfers of a website to be placed at the homepage of that website. Second, the development of an integrated Web content and usage mining approach to improve the understanding of the user's Web behavior and discover the user group interests in a website. Third, the development of a supervised classification model based on recent Social Web concepts, such as Tag Clouds, in order to improve the retrieval of relevant articles and posts from Web social blogs.

Made available in DSpace on 2016-04-04T18:31:21Z (GMT). No. of bitstreams: 1 Paulo da Costa.pdf: 1562833 bytes, checksum: 074d86d4ee46703de7c27efeee0966e5 (MD5) Previous issue date: 2008-02-15 / The Internet is one of the most important sources for content and services to which the simple user has become an important collaborator. With the bandwidth improvements in the upload and download transfer rates we realize the peer-to-peer (P2P) communications is growing fast in Brazil. The evolution of the peer-to-peer leads to a scenario where the client-server model will be replaced to a peer-to-peer model with multiple peers over the web. The purpose of this study is to report the evolution of the internet in Brazil, showing the actual scenario and making predictions considering the evolution of the technology and the use of the web in different scenarios, focusing in the peer-to-peer model. During the development of this study, some statistic methods will be used, such as the Gompertz and the linear regression methods to create predictions to be used in the decision making process. Analysis of the results according to quantitative researches done by researches institutes, provide the integration between the presented technique and the performed procedures. / A Internet ? atualmente uma das principais fontes de distribui??o de conte?dos e servi?os em ambientes abertos, da qual o usu?rio comum vem se tornando cada vez mais um importante fornecedor. Com o crescente aumento das taxas de transmiss?o para upload e download que s?o oferecidas pelas operadoras para os usu?rios comuns, ? poss?vel ter uma indica??o de que o modelo de comunica??o peer-to-peer (P2P) caminha para o crescimento. Este modelo, que j? tem sido amplamente utilizado, indica para o futuro um panorama onde o modelo cliente-servidor tende a ser superado pelo modelo peer-to-peer e com a tend?ncia da ado??o de um modelo com m?ltiplos peer-to-peer. O prop?sito deste trabalho ? analisar a evolu??o de demanda da Internet e em especial deste modelo no cen?rio brasileiro, identificando e detalhando seu panorama atual e com predi??es de como ser? em futuro pr?ximo, tomando como base par?metros de evolu??o tecnol?gica e uso da Internet em diversos cen?rios. Ser?o utilizados os m?todos estat?sticos de regress?o linear e Gompertz para gerar as previs?es de demanda como apoio para tomadas de decis?es. An?lises dos resultados com pesquisas quantitativas feitas por institutos de pesquisa fazem a integra??o entre a t?cnica apresentada e os procedimentos executados.