Používanie správnych a efektívnych komunikačných nástrojov je v súčasnej dobe jedným zo základných faktorov úspechu podnikania. Cieľom práce je upozorniť na dôležitú zložku komunikačného mixu, ktorým firmy pôsobia na svojich potenciálnych i stávajúcich zákazníkov, a to na vizuálnu komunikáciu. V súčasnej dobe síce existuje celá rada metodík, ktoré pomáhajú hodnotiť kvalitu webových prezentácií, máloktoré sa však zameriavajú na hodnotenie webových stránok z hľadiska ich vizuálnej komunikácie k zákazníkovi. Kompiláciou a doplnením stávajúcich, práca prichádza s návrhom vlastnej metodiky, ktorá bude zameraná práve na hodnotenie kvality webových prezentácií z hľadiska vizuálnej komunikácie.

Serving dynamic web pages raises higher load of web servers and associated technologies. This can to some extent eliminate setting up reverse proxy with cache in front of the web server. The primary goal of this thesis is to implement this technique via presently most popular web server -- Apache. These Apache's proxy features were at first well tested and described, later practically applied in real LAMP software bundle enviroment (Linux, Apache, PHP, MySQL).

The project describes the problems of reconstruction and analysis of web traffic. The main goal of this project is to study theoretical background and to create a design of the reconstruction tool. The tool does reconstruction of the web traffic based on captured network data. Output of the reconstruction process is intended for later visualization. Main usage of this tool is expected at the law enforcing agencies dealing with Internet crime.

WWW-Vortrag UNIX-Stammtisch 06/95.

Was ist XML? Was kann man damit machen? Welche Anwendungsgebiete für XML sind denkbar? Was gibt es derzeit für Applikationen? Wie wirkt sich diese neue (Meta-)Sprache auf die zukünftige Netznutzung aus?

Die Extensible Markup Language (XML) hat sich seit ihrer ¨Erfindung¨ vor etwa drei Jahren zu einem strategischen Element bei neuen Computer- und Netz-Anwendungen entwickelt. Mittlerweile erfüllen sich auch einige der hochgesteckten Erwartungen, nicht zuletzt mit Hilfe von Werkzeugen aus dem Linux-Umfeld. Die sehr dynamische Entwicklung hat zahlreiche Richtungen. Neben ¨generischen¨ Werkzeugsystemen gibt es die server- und klientenseitige Interpretation diverser Stil- und Transformationsvorschriften. Standardisierte XML-basierte Spezialsprachen werden ¨herstellereigene¨ Binärformate ablösen und eine neue Qualität der Kooperation unterschiedlichster Anwendungen ermöglichen.

This thesis studies the characteristics of the network structure extracted from the public KTH web. The network structure was extracted with a crawler and consisted of 671,013 nodes and 23,515,683 links. The system is studied by applying statistical concepts from network science such as degree distribution and average path to reveal the characteristics of the network. The aim of the statistical analysis is to explore the robustness of the network and to answer if the network is scale-free. The thesis will examine the results from the study and compare the results to previous similar research. The results indicate that there might have been a change in regards to the network structure of websites since the last major research was done on the subject, likely caused by changes in web design. However, the results still indicate characteristics typical for a scale-free network. Due to irregularities in the crawler results may be slightly unreliable. / Detta kandidatexamensarbete undersöker de egenskaper i nätverksstrukturen för det allmänna KTH nätet. Denna struktur extraherades med en spindel och bestod av 671,013 noder och 23,515,583 länkar. Systemet studerades genom att applicera statistiska koncept från nätverksteori såsom gradfördelning och genomsnittlig väg för att visa nätverkets egenskaper. Målet med den statistiska undersökningen är utforska nätverkets robusthet och besvara frågan om nätverket är så kallad scale-free. Studien jämför även resultaten med resultat från tidigare studier med liknande undersökningar.   Resultaten indikerar att det kan ha blivit en förändring i avseende på nätverkets struktur sedan den tidigare omfattande studien genomfördes, förmodligen orsakat av ändringar i webdesign. Trots det så indikerar resultaten att nätverket fortfarande har egenskaper typiska för ett scale-free nätverk. På grund av oregelbundenhet i spindeln så kan resultaten vara smått opålitliga.

In this part of the thesis we have investigated how the navigation utilizing web recommendations can be implemented on the e-commerce websites based on integrated data sources. The integrated e-commerce websites are an interesting use case for web recommendations. One of the reasons for this interest is that many modern, large and economically successful e-commerce websites follow the integrated approach. Another reason is that especially in the integrated environment, due to the lack of the pre-defined semantic connections between the data, the web recommendations step forward as means of enabling user navigation. In this chapter we have presented the architecture for the websites based on integrated data sources named EC-Fuice. We have also presented the prototypical implementation of our architecture which serves as a proof-of-concept and investigated the challenges of creating navigation on an integrated website. The following issues were addressed in this part of the thesis:  Combination of several state-of-the-art tools and techniques in the fields of databases, data integration, ontology matching and web engineering into one generic architecture for creating integrated websites.  Comparative experiments with several techniques for instance matching (also known as record linkage or duplicate detection). Investigation on using the ontology matching to facilitate the instance matching.  Comparative experiments with several techniques for ontology matching. Investigations on the instance-based ontology matching and the possibilities for combining instance-based ontology matching with other techniques for ontology matching.  Investigation of the possibilities to improve user navigation in the integrated data environment with different types of web recommendations.  Review of the related work in the fields of data integration and ontology matching and discussion of the contact points between the research described here and other related projects. The main contributions of the research described in this part of the thesis are the EC-Fuice architecture, the novel method for matching e-commerce ontologies based on combination of instance information and metadata information, the experimental results of ontology and instance matching performed by different matching algorithms and the classification of the types of recommendations which can be used on an integrated e-commerce website.

No description available.

No description available.