The main problem in the semantic technology today is semantic metadata extraction and description. There is no general method used to extract any type of semantics. The main objective of this research is to analyze existing methods that are used for describing and extracting semantic metadata and to design a metadata extraction system for Lithuanian. The quality analysis of designed system is carried out according to ISO/IEC 9126 standard. The objective of this standard is to provide a framework for the evaluation of software quality. ISO/IEC 9126 does not provide requirements for software, but it defines a quality model, which is applicable to every kind of software.

Tikslas Išanalizavus internetinių puslapių antraštės struktūrą ištirti juose naudojamų metaduomenų įtaką indeksavimui. Tyrimo objektas Internetiniame puslapyje aprašoma antraštė, jos metaduomenys. Problema Randama daug literatūros ir straipsnių apie metaduomenų panaudojimą bei reikšmę internetinių puslapių kūrimui bei žiniatinklio indeksavimui, tačiau sutinkama skirtingų nuomonių šiuo klausimu, vieni teigia, kad mataduomenys turi mažai įtakos žiniatinklio indeksavimui, kiti teigia priešingai. Deja, visa medžiaga apie metaduomenų įtaką pateikiama tik teorinė, o realių pavyzdžių beveik nėra, todėl atlikus tyrimą įsitikinama metažymių naudingumu ir suformuluojamas taisyklingas antraštės aprašymas. Tyrimo metodologija Teoriniai tyrimo metodai: paieškos variklio veikimo apžvalga, paieškos variklių optimizavimą įtakojančių faktorių apžvalga, metažymių aprašymo ir panaudojimo analizė. Praktiniai tyrimo metodai: internetinio puslapio antraštės analizavimas, antraštėje talpinamų duomenų apie metažymes surinkimas, metažymėse aprašomų raktažodžių reikšmių surinkimas, paieškos rezultatų pagal raktažodžius ir puslapio pavadinimą stebėjimas. Naudotos priemonės „Mozila Firefox“ 3.5.9 – žiniatinklio naršyklė „Macromedia Dreamweaver“ 8.0 – internetinių puslapių kūrimo programa. Tyrimo apimtis Indeksavimo našumas palygintas taikant paieškos užklausų pateikimą keliems paieškos varikliams tuo pačiu metu. Tyrimo eksperimentas apima šiuos realizacijos atvejus: paieškos užklausos pagal raktažodžių... [toliau žr. visą tekstą] / The purpose of this bachelor’s paper is to carry out deep research on web indexing which depends from headings. The reason why have been decided to do this research were the numerous information about methods, which increases the better way of web indexing, however, there is no information on practical examples. Very important is high page rank in search engine, because it is main way to the success and popularity. There is possibility to increase page rank by integration of metatags into the page’s headings, however, literature sources gives different articles about metatags operation and their influence to the web indexing, this is the reason which stimulated to research, its proves how the search engine assess heading’s metadata. The research has been made by three search’s engines. The main research object is described in internet’s page headings and its metadata. The theoretical part which has been analysed includes information about operations in search engine, and about the main search engine’s optimization factors, in the internet’s pages heading have been used metatags structure and the value. The research have been done by analysing heading structure and in the heading have been used metadata, where had been investigated the keyword use of metatag and title tag’s influence to the web indexing. The work produced rightful example of headings how should be filled, and recommendations to improve the web indexing. The research which has been... [to full text]

The main goal of Masters final work is to analize basics of virtual organization and its needs for document management system. Virtual organisation is a one of organisations methods to colaborate. Virtual organisation require the system, who will guarantee document managent and control.

The increasing usage of personal computers and Internet in organizations made it possible to create, edit and share various documents between different employees of the organization. However, document management becomes very troublesome, especially if several employees can contribute changes to a singe document: it is very hard to locate latest document version, or determine which changes to the document were made by which employee. Document management systems are aimed to solve these problems. However these systems often are highly specialized and very costly to implement, or they are general-purpose and hard to customize and apply to organization business domain. Inabilities to customize often arise from strict and inflexible metadata model, used in document management system. The aim of this work is propose abstract document metadata definition and processing model, based on XML data definition language and concept of XML data processing pipeline. The proposed model is general-purpose and highly flexible at the same time, enabling to apply model to any business domain and customize it to reflect any features specific to this domain.

Storage, preservation and access of Master's and PhD theses as well as their abstracts in an electronic form provide unique opportunities to the academic community in Lithuania as well as worldwide. The main aims of this project were to establish an archive (Lithuanian ETD IS) of Lithuanian student final year projects, PhD theses and their abstracts in an electronic form (ETD). This archive should become a part of the Lithuanian academic library network (LABT), ensuring registration and storage of ETD documents, and should be accessible by the academic community in Lithuania and the rest of the world. In order to develop the Lithuanian ETD IS, the most widely used formats and methods for access, retrieval and exchange with NDLTD and other national ETD projects were employed. A solution, ensuring efficient ETD registration, preservation, retrieval and access by users, is presented and discussed. Application of the ExLibris programming products (ALEPH500™, MetaLib™, SFX™), developed during the LABT project, was used.

Pagrindinis projekto tikslas – sukurti informacinę sistemą, paremtą metaduomenų lygiu, nes išanalizavus esamų portalų rinką Lietuvoje buvo pastebėta, kad šie portalai neturi tam tikrų funkcionalumo galimybių: sudėtingas portalo valdymas bei duomenų įkėlimas į portalus, sunkus ir brangus perprojektavimas, lėtas veikimas, didelės eksploatacinės išlaidos. Buvo suprojektuota loginė portalo architektūra, sistemos elgsenos modelis (naudojantis sekų diagramomis), reliacinės duomenų bazės schema, sistemos testavimo modelis ir metabazės lygis. Ištestuotas sistemos modelis, paruošta vartotojo instrukcija. Šis portalas „Būsto portalas“ leidžia lengviau keisti duomenų struktūrą ir ją praplėsti, patogiau įkelti naują informaciją, lengviau keisti vartotojo galimybes bei pačiam vartotojui naudotis portalu. Dėka metabazės lygio greičiau pasiekiami duomenys. Portalo administratoriui lengviau ir paprasčiau perprojektuoti visą portalą kitam tikslui (pasikeitus portalo informacijos sričiai). Esant paprastai turinio valdymo sistemai – lengviau neįgudusiam administratoriui prižiūrėti portalą, nes atskirta portalo veikimo logika nuo naudojamų duomenų. / The main goal of this project is to create an informative system based on metadata level due to the research done on existing sites in Lithuania, which has shown that those sites don‘t have some functional possibilities: they are difficult to manage, loading data is complicated, redesigning is expensive and hard, slow operation, high financial maintenance. Logical site architecture has been designed as well as the model of system behaviour (using diagrams of sequences), scheme of relative data base, model of system testing and meta-base level. System model has been tested, maintenance and user‘s instruction documents have been prepared, any logical and other mistakes have been corrected. This site ‚The dwelling site‘lets easily change the structure of data and widen it, it has become more convenient to change user‘s possibilities and load new data and use the site itself. The data is quicker to reach because of the metadata level. It is also easier for site administrator to redesign the whole site for the different purpose when the range of information changes. When managing of content is easy to maintain it is also easier for a less experienced administrator to look after the site, because the logic of site operation is separated from data being used.

Šio darbo tikslas – išanalizuoti pasirinktas rinkmenų paieškos sistemas bei pasirinkta optimaliausia metodika sukurti elektroninių dokumentų paieškos sistemą, kuri leistų sumažinti laiko sanaudas ieškant rinkmenų vietinio tinklo serveryje ir vietiniame tinkle sujungtuose kompiuteriuose. Darbe aprašytos elektroninių dokumentų savybės, paieškos metodikos teoriniai ir praktiniai aspektai. Atlikta pasirinktų rinkmenų paieškos sistemų lyginamoji analizė. Šio tyrimo problema: vidutinio dydžio įmonėje ar įstaigoje sunku greitai surasti ir peržiūrėti dokumentus, naudojamus vietiniame serveryje ar tinklo kompiuteriuose. Išanalizavus elektroninių dokumentų savybes bei jų paieškos technologijas buvo sukurta rinkmenų paieškos programa, pasinaudojant "Microsoft Visual C # 2005 Express Edition" programavimo platforma. Sukurta programa "Paieška", skirta surasti rinkmenas vietinio tinko serveryje ir tinklo kompiuterių bendrai naudojamuose kataloguose. Tai ypač naudinga organizacijose, besinaudojančiose bendrais dokumentų resursais. Darbą sudaro įvadas, elektroninių dokumentų analizė, rinkmenų paieškos sistemų analizė, paieškos technologijų apžvalga, realizuotos paieškos sistemos aprašymas, išvados, literatūros sąrašas ir 2 priedai. Darbo dydis yra 35 puslapiai be priedų, 3 lentelės, 4 paveikslėliai ir 17 literatūros šaltinių. / This work main purpose to analyze the usage of main desktop search systems, choose one optimal system and to create electronic documents search engine, which would reduce the time searching for files on a local network server and LAN computers. There are described document search and managemant teoretical and practical aspects. Develope essential features, accomplished comparable analysis of main document search systems. The following problems ware determined: there are no possibilities to find quickly and modify documents which are shared over Local Area Network in medium organization. After analysis of data search technologies it was decided to create a file search application using „Microsoft Visual C# 2005 Express Edition“ programming platform. Created application „Paieška“ is a tool designed for the purpose of searching for files and folders which are shared over a Local Area Network and servers. It is particularly useful in organizations where a lot of folders are shared on individual systems. The work consists of introduction, the analysis of data managemant usage in the document management system, technologies of document seaching, solution for document search system, findings, references and 2 annexes. The size of work is 35 pages without annexes, 3 tables, 4 pictures and 17 references.

This thesis describes a methodology presented in a pattern language for design of questionnaire / survey information systems. It is intended to be used by professional programmers with negligible experience in the domain of questionnaire / survey software. A system of individual and discrete design patterns of various types is interconnected by varying relations enabling the user to navigate effortlessly and to implement a customizable level of expertise contained within the language. The design patterns contain expert knowledge about construction and contents of a universal high-end questionnaire / survey information system. Data structures, graphical user interface and psychological ramifications of questions’ formulations are discussed in detail. The descriptions of two different prototypes of information systems are supplied. They were created using the expertise of the pattern language and serve as a proof of eligibility for it. The innovation in the thesis is driven by the absence of pattern language for questionnaire design, usage of various types of design patterns / relations in the created language and the very design of universal metadata-based questionnaire information system described in the created language.