Thesis (Ph. D.)--University of Washington, 2008. / Vita. Includes bibliographical references (p. 128-132).

Thesis (Ph.D)--Electrical and Computer Engineering, Georgia Institute of Technology, 2009. / Committee Chair: Blough, Douglas; Committee Member: Liu, Ling; Committee Member: Owen, Henry; Committee Member: Riley, George; Committee Member: Yalamanchili, Sudhakar. Part of the SMARTech Electronic Thesis and Dissertation Collection.

Det här arbetet innefattar html 5 i avseendet beträffande användning av dess nya taggar/attribut redan nu, även fastän år som 2022 eller 2014 har nämnts av vissa när det gäller utvecklingsspråkets färdigställande. Intresset bakom arbetet uppstod baserat på några olika saker. Först och främst vid studerandet inom kursen "Webbteknisk Introduktion" (som läses i samband med Webbprogrammerare-programmets första år (hösten 2009), hos Linnéuniversitet) där användning av nya taggar, och påståenden avseende att språket redan då kunde börja användas, samt även utvecklingsspråkets namn (eftersom innefattningen av språket består av mycket mer än taggar/attribut) bidrog. Av de nytillkomna taggarna/attributen, har automatiska tester (via Javascript) gentemot de senaste versionerna av webbläsarna (Maj 2011 samt Augusti 2011) bestående av Internet Explorer, Opera, Mozilla Firefox, Apples Safari och Google Chrome genomförts. Operativsystemen webbläsarna körts under består av Mac OS X Server 10.6.7 och Windows 7 Professional (x86). Avseende resultatet visar det att webbläsarna överlag har omkring 80 till 90 % stöd för de nytillkommna taggarna, även fastän alla nya attribut stöds olika i webbläsarna. Slutsatsen av testerna visar därmed att det blir en övervägning i avseendet beträffande vad som kan/bör/skall brukas. / This essay is about html 5 and its tags/attributes can be used right now, even if years like 2022 or 2014 has been talked about for dates when the new language can be completely done. The interest behind the essay arose when I’ve studied in a computer course named “Webbteknisk Introduktion” at the Linnaeus University the autumn of 2009, inside the program: “Webbprogrammerare-programmet”. The course was mainly about html, but at one point we’ve also got to have our hands on the new thing – html 5. It was said at the same point in the course, that html 5 was more or less ready to use. Which caught my interest and wanted to get evidence about it. New tags/attributes have in this work been tested with JavaScript towards the latest web browsers (as of May 2011 and August 2011) consisting of: Internet Explorer, Opera, Mozilla Firefox, Apple Safari and Google Chrome. On top of Mac OS X Server 10.6.7 and Windows 7 Professional (x86). According to the final results, it shows that the tested browsers had about 80 to 90 percent support for the new tags, even if the attributes may vary. The final conclusion about the completed tests would then be that it’s more or less a choice of the things in the language he/she wants, or need to use, and so on.

This thesis focuses on the effectiveness of marketing tools available in Czech internet environment. The theoretical part describes typical attributes and advantages of individual tools and observes the possibilities of achieving marketing and commercial goals by using these tools. In the application part, the surveyed e-shop is introduced and it's marketing tools are analyzed using web analytics. Either behaviour of customers of this e-shop or financial indicators, which are crucial for evaluating performance, are analyzed in this thesis. The synergic effect of using these marketing channels is evaluated using the assisted conversions analysis. The main goals of this thesis is evaluation of the efficiency of used marketing tools using web analytics and consider suitability of their use for this specific e-shop. Another aim is comparing the performance of individual marketing sources and proposing measures to help increase efficiency of tools used by this e-shop.

Context - Software applications on the web are more commonly used nowadays than before. As a result of this, the performance needed to run the applications is increasing. One method to increase performance is writing multi-threaded code using Web Workers in JavaScript. Objectives - We will investigate how using Web Workers can increase responsiveness, raw computational power and decrease load time. Additionally, we will conduct a survey that targets software developers to find out their opinions about performance in web applications, multi-threading and more specifically Web Workers. Realization (Method) - We created three experiments that concentrate on the areas mentioned above. The experiments are hosted on a web server inside an isolated Docker container to eliminate external factors as much as possible. To complement the experiments we sent out a survey to collect information of developers' opinions about Web Workers. The criteria for the selection of developers were some JavaScript experience. The survey contained questions about their opinions on switching to a multi-threaded workflow on the web. Do they experience performance issues in today's web applications? Could Web Workers be useful in their projects? Results - Responsiveness shifted from freezing the website to perfect responsiveness when using Web Workers. Raw computational power increased at best 67% when using eight workers with tasks that took between 100 milliseconds and 15 seconds. Over 15 seconds, sixteen workers improved the computational power further with around 3% - 9% compared to eight workers. At best the completion time decreased with 74% in Firefox and 72% in Chrome. Using Web Workers to help with load time gave a big improvement but is somewhat restricted to specific use cases. Conclusions - Using Web Workers to increase responsiveness made an immense difference when moving tasks that is affecting the users responsiveness to background threads. Completion time for big computational tasks was quicker in use cases where you can split the workload to separate portions and use multiple threads in parallel to complete the tasks. Load time can be improved with Web Workers by completing some tasks after the page is done loading, instead of waiting for all tasks to complete and then load the page. The survey indicated that many have performance in mind and would consider writing code in a multi-threaded way. The knowledge about multi-threading and Web Workers was low. Although, most of the participants believe that Web Workers would be useful in their current and future projects, and are worth the effort to implement.

No description available.

Background. Web tracking is a constant threat to our privacy when browsing the web. There exist multiple methods of tracking, but browser fingerprinting is more elusive and difficult to control. Browser fingerprinting works by a website collecting all kinds of browser and system information on visiting clients and then combining those into one set of information that can uniquely identify users. Objectives. In this thesis, we tested three of today's most used web browsers for the desktop platform to determine their ability to utilize one type of countermeasure, attribute spoofing. We aimed at determining how the browsers perform in two cases. The first case is when running with a default configuration. The second case is when the attribute spoofing is improved with the help of both altered settings and installed extensions. We also aimed at determining if the choice of browser matters in this aspect. Methods. The method for determining these goals was to conduct an experiment to collect 60 fingerprints from each browser and determine the effectiveness of the attribute spoofing via a weight-based system. We also used statistics to see the value range for spoofed attributes and to determine if any browser restart is required for certain spoofing to occur. Results. Our results show little to no attribute spoofing when browsers run in their default configuration. However, significant improvements were made through anti-fingerprint extensions. Conclusions. Our conclusion is, if the tested browsers' do not utilize any other type of countermeasure than attribute spoofing, using browsers at their default configuration can result in a user being alarmingly vulnerable to browser fingerprinting. Installing extensions aimed at improving our protection is therefore advised.

The web browser has become one of the most recognizable software applications on consumer desktops. Yet its utilization and capabilities are often misunderstood. Recent innovations in the web have evolved the Internet into a network of sophisticated applications that defy historical uses of the “browser”; a term that itself has become somewhat of a misnomer. This research studies the evolving set of user expectations for the browser as an application platform and challenges certain anachronistic features, specifically the “back” button, that are unnecessary and confusing given the new environment that browsers are used in. Because of this shift, implicit new user requirements arise around the browser’s user interface. The back button, like other elements in the browser have already demonstrated, should be de-emphasized in modern iterations of web browsers. The study is qualified by an analysis of user behavior within a popular, modern, web application. NOTE: This master's thesis has been removed at request of the author due to it containing experimentation data referencing a branded software application for which the author no longer has permission to share.

Browser security indicators show warnings when sites load without HTTPS, but more malicious sites are using HTTPS to appear legitimate in browsers and deceive users. We explore a new approach to browser indicators that overcomes several limitations of existing indicators. First, we develop a high-level risk assessment framework to identify risky interactions and evaluate the utility of this approach through a survey. Next, we evaluate potential designs for a new risk indicator to communicate risk rather than security. Finally, we conduct a within-subjects user study to compare the risk indicator to existing security indicators by observing participant behavior and collecting feedback. Our results suggest that risk indicators make users more confident in judging their risk and that participants prefer risk indicators over current security indicators. In addition, users take fewer risks in the presence of risk indicators, making this a promising direction for research and implementation into web browsers.

Σήμερα υπάρχουν πολυάριθμα εργαλεία για την κατασκευή και παραμετροποίηση τρισδιάστατων μοντέλων με το καθένα από αυτά να χρησιμοποιεί το δικό του πρωτόκολλο περιγραφής της τρισδιάστατης πληροφορίας που αποθηκεύει και επεξεργάζεται. Εντούτοις δεν είναι λίγες η φορές που απαιτείται η μεταφορά περιεχομένου απο το ένα εργαλείο στο άλλο. Το παραπάνω οδήγησε στην ανάγκη δημιουργίας κοινώς αποδεκτών πρωτοκόλλων περιγραφής της τρισδιάστατης πληροφορίας για την διευκόλυνση της διαχείρισής της. Απο τα πρωτόκολλα αυτά, το COLLADA φαίνεται να επικρατεί λόγω του οτι είναι ανοιχτό, επεκτάσιμο και ευρέως διαδεδομένο. Στην παρούσα εργασία γίνεται παρουσίαση αυτού και δίνεται έμφαση στους λόγους που οδηγούν στην ολοένα και ταχύτερη ανάπτυξή του και στις τελευταίες λειτουργείες που έχουν προστεθεί. Στη συνέχεια, με βάση το πρωτοκολλο αυτό, υλοποιείται μια πιλοτική εφαρμογή για την απεικόνιση και την αλληλεπίδραση με τρισδιάτατα αντικείμενα, χρησιμοποιώντας σύγχρονες τεχνικές και τεχνολογίες για διαδικτυακή παρουσίαση τρισδιάστατου περιεχομένου. Η εφαρμογή αυτή στοχεύει σε φυλλομετρητές προσωπικών υπολογιστών, ενδέχεται ωστόσο να επεκταθεί ώστε να είναι δυνατή η χρήση της ακόμα και από φυλλομετρητές τελευταίας τεχνολογίας κινητών τηλεφώνων (iPhone). Τα συμπεράσματα που θα προκύψουν από την χρήση της εφαρμογής αυτής ενδέχεται να οδηγήσουν στην δημιουργία ενός μετέπειτα ολοκληρωμένου προϊόντος. / Today there are numerous tools for the construction and configuration of three-dimensional models, each of them uses its own protocol describes the three-dimensional information stored and processed. However, there are few times when the need to transfer content from one tool to another. The above led to the need for commonly accepted protocol describes the three-dimensional information to facilitate management. Of these protocols, the COLLADA seems to prevail because it is open, scalable and ubiquitous. In the present study it and focus on the reasons leading to ever more rapid development in recent operations that have been added. Then, based on this protocol, implemented a pilot application to display and interact with trisdiatata items using modern techniques and technologies for web-dimensional presentation of content. This application is targeted at PC browsers, but may be extended to allow the use of browsers and even the art mobile phones (iPhone). The conclusions arising from the use of this application may result in the creation of a finished product later.