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Digital Library Information Retrieval
Hochmal, Petr ; Rychlý, Marek (referee) ; Chmelař, Petr (advisor)
This thesis deals with methods of information retrieval. Firstly, it describes models of information retrieval and methods of retrieval evaluation. Then it brings closer the principles of the input text processing for IR with use of stopword list and stemmer. Furthermore, it shows the way of the query expansion with synonyms using the thesaurus, methods of handling phrases appearance in queries and introduces the idea of ranking documents by the degree of phrase occurrence similarity in documents. In the second part of this thesis is described the design of whole IR system with using vector model, query expansion with synonyms and phrases handling. This system has been implemented in C# as the application for retrieving and administration of the documents in digital libraries. The effectiveness of this system has been evaluated at the end of this thesis by several tests.
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Sources of Information Used for Calculating Selected Indicators of Financial Analysis and Their Relevance
Antoš, Milan ; Hejnová, Martina (referee) ; Hanušová, Helena (advisor)
Předmětem diplomové práce je implementace teoretických poznatků s cílem ověřit relevantnost zdrojů informací sloužících pro výpočty ukazatelů finanční analýzy. První část je zaměřena ne teoretické poznatky finanční analýzy zejména u výrobních podniků a služeb. V této části je věnována velká pozornost poměrovým ukazatelům a jejich výpočtům. Teoretická část je zakončena specifiky finanční analýzy pro komernčí pojišťovnu. Výstupem práce je pak ověření relevance dat a poměrových ukazatelů finanční analýzy pro specifické odvětví pojišťoven z hledsika vývoje v čase a faktorů ovlivňujích jejich vývoj.
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Problems with searching for information on the Internet
Ngo Anh, Tuan ; Sklenák, Vilém (advisor) ; Bělohoubková, Lenka (referee)
This bachelor thesis is about the problem of searching for information on the Internet. The goal of this thesis is to provide important information on how internet search engines work, with special attention paid to the full-text search engine. The paper was divided into several parts. In the first part I focused on the description of the functioning of full-text search. In the second part, I discussed the other types of search engines, and I have listed their advantages and disadvantages. In the third part, I focused on the formulation of search queries. I dedicated next part of the paper to introduce some specific search engines and services they offer. The last part of the thesis refers to the survey, which highlights the problems encountered by users when searching for information on the Internet.
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Problems with searching information in the Internet - relevance
Mischaniuk, Mykhailo ; Sklenák, Vilém (advisor) ; Chudán, David (referee)
The paper tries to solve the issue, which appears in the Internet environment, which is - identifying information. This problem is relevance - how search results are useful to humans. The main part is devoted to comparing the two strongest players in the search on the Internet in the Czech environment, Seznam and Google. The comparison is described by several tests and analysis of the results. Also the work examines how to use resources of search on the internet to achieve the most relevant results, and how the creators of web pages are using the means to take advantage of the relevance to their side.
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Problems of information search on the Internet
Janů, Tomáš ; Sklenák, Vilém (advisor) ; Šubrta, Václav (referee)
This thesis adverts to the inadequacies and impediments which can be met by an ordinary user of the internet when searching for information. The process of searching itself represents an interaction between the request given by a user and the result displayed by a search engine. The result might be in a form of URL address of a concrete web page, picture, product, location etc. Some of the problems, which are described in detail in the thesis, are for example relevance and freshness of the search result, separation of global and local result, spam in the results or problems connected to the searching in the online maps. There is an emphasis on the local market, respectively on the Czech user, in the thesis. Furthermore, it focuses on the freshness of all data and on a practical sample in a picture form. The important data and statistics are recorded in the well-arranged tables and graphs. Among others, many interesting information and observations can be found in the thesis. These information and observations are marked with the blue arrow (->).
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