This work deals with the design of a phishing attack detection and classification tool. The work describes techniques and forms of phishing attacks and availible tools and techniques for phishing detection. Based on the analysis of existing tools a solution for file classification is proposed. Implemented tool handles input parsing and creation of input model. Model is based on hybrid analysis of input file and URL. Using the YARA tool, YARA rules are applied which are then used in creation of input classification. Analysis of input model and definition of classification rules is enabled by implemented YARA module. Implemented solution makes it possible to define YARA rules for phishing classification based on the structural properties of a phishing file and features of source URL.

This diploma work is oriented into increating information portal and is including description of activities connected with. The market backround and competition are analyzing there. Work includes processes, which are needed for creation internet information portal.

The master's thesis is focused on proposal and subsequent integration of e-shop into a web presentation and overall web optimalization. Furthermore the thesis includes characterization of many partial activities, which were necessary to perform during project realization. It records financial aspects of whole project and also presents suggestions on how to promote the web pages on the internet.

This master's thesis focuses on designing an information strategy for an organisational unit of a civic association. Based on an analysis of internal and external environment of the unit, this thesis formulates the information strategy which will support achieving the set of strategic objectives, using selected components of information technology and information system.

The digitization in public transport is aimed at all citizens, which means that everyone should be able to use IT-based services in a simple way and obtain available information. The purpose of this study is to identify the usability issues that can occur on “My pages” of county-wide bus service. The purpose is to find out the improvements that can be made to the efficiency and user experience on My pages based on the comments of the test participants.  The research questions in this study are: What usability problems can be identified on My pages? What efficiency improvements can be made on My pages based on test participant feedback and how is the user experience perceived by test participants? The methods used during this study are usability testing using eye-tracking equipment, observation, thinking aloud, and structured interview that includes background questions about the participants.  The results are based on the data collection through the test participants. Eight usability issues were identified, and eight improvement points were revealed. Eye-tracking equipment combined with gaze-plots and observation can be used to see how a usability problem arises. Test participants comments when thinking aloud and interviewing give a better understanding of testing behavior.

Virtual world is having an increasingly important role for us. Not only it affects our personal lives but also our shopping habits. Today it is more or less a necessity to be present online for many companies. The submitted work is the first exploratory analysis of websites content of social enterprises in the Czech Republic. This sample consists of 128 social enterprises, which were supported by a Call no. 30 "Social economy" of the European Social Fund. Supported organizations gain a considerable amount of funds for thein development. With incoming public finances it is necessary to raise a question of transparency and openness of these organizations. Work describes which information is available through websites of social enterprises, evaluates their level of transparency and monitors whether these organizations recognize themselves as social enterprises. It was examined whether organizations disclose information for which they could be described as a social enterprise organization that is in compliance with the principles created by the Thematic Network for Social Economy (TESSEA) a network, which created the first Czech definition of social enterprise. The results show that most social enterprises have a website. However, although the information sought on websites were more or less basic,...

This thesis deals with the issues of information architecture for the web sites. It is not just a theoretical approach to a problem, but also an approach to a specific practical problem. Information architecture focuses directly on the Web headquarters of the National Archives. A summary of theoretical knowledge in the field of information architecture for the web site is part of the thesis. In addition, there is also a huge part of information analysis, which is based on design information architecture for a particular web site.

This work deals with handicapped users' issues caused by limitations of their handicap and their ability of reading and text understanding. It reports on a summary of basic rules of accessible web pages' creation. It also introduces a solution with help of automatic transformation of inaccessible web pages to their accessible version.

The current World Wide Web is a web of pages. Users have to guess possible keywords that might lead through search engines to the pages that contain information of interest and browse hundreds or even thousands of the returned pages in order to obtain what they want. This frustrating problem motivates an approach to turn the web of pages into a web of knowledge, so that web users can query the information of interest directly. This dissertation provides a step in this direction and a way to partially overcome the challenges. Specifically, this dissertation shows how to turn machine-generated web pages like those on the hidden web into semantic web pages for the web of knowledge. We design and develop three systems to address the challenge of turning the web pages into web-of-knowledge pages: TISP (Table Interpretation for Sibling Pages), TISP++, and FOCIH (Form-based Ontology Creation and Information Harvesting). TISP can automatically interpret hidden-web tables. Given interpreted tables, TISP++ can generate ontologies and semantically annotate the information present in the interpreted tables automatically. This way, we can offer a way to make the hidden information publicly accessible. We also provide users with a way where they can generate personalized ontologies. FOCIH provides users with an interface with which they can provide their own view by creating a form that specifies the information they want. Based on the form, FOCIH can generate user-specific ontologies, and based on patterns in machine-generated pages, FOCIH can harvest information and annotate these pages with respect to the generated ontology. Users can directly query on the annotated information. With these contributions, this dissertation serves as a foundational pillar for turning the current web of pages into a web of knowledge.

Increasing number of cores in chip multiprocessors (CMP) result in increasing traffic to last-level cache (LLC). Without commensurate increase in LLC bandwidth, such traffic cannot be sustained resulting in loss of performance. Further, as the number of cores increases, it is necessary to scale up the LLC size; otherwise, the LLC miss rate will rise, resulting in a loss of performance. Unfortunately, for a unified LLC with uniform cache access time, access latency increases with cache size, resulting in performance loss. Previously, researchers have proposed partitioning the cache into multiple smaller caches interconnected by a communication network which increases aggregate cache bandwidth but causes non-uniform access latency. Such a cache architecture is called non-uniform cache architecture (NUCA). While NUCA addresses the LLC bandwidth issue, partitioning by itself does not address the access latency problem. Consequently, researchers have previously considered data placement techniques to improve access latency. However, earlier data placement work did not account for the frequency with which specific memory references are accessed. A major reason for that is access frequency for all memory references is difficult to track. In this research, we present a hardware-assisted solution called ACTION (Adaptive Cache Block Migration) to track the access frequency of individual memory references and prioritize their placement closer to the affine core. ACTION mechanism implements cache block migration when there is a detectable change in access frequencies due to a change in the program phase. To keep the hardware overhead low, ACTION counts access references in the LLC stream using a simple and approximate method, and uses simple algorithms for placement and migration. We tested ACTION on a 4-core CMP with a 5x5 mesh LLC network implementing a partitioned D-NUCA against workloads exhibiting distinct asymmetry in cache block access frequency. Our simulation results indicate that ACTION can improve CMP performance by as much as 8% over the state-of-the-art (SOTA) solutions.