• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 567
  • 181
  • 143
  • 142
  • 141
  • 95
  • 33
  • 28
  • 16
  • 14
  • 12
  • 12
  • 12
  • 9
  • 9
  • Tagged with
  • 1602
  • 348
  • 298
  • 253
  • 249
  • 233
  • 227
  • 218
  • 209
  • 176
  • 159
  • 143
  • 138
  • 126
  • 119
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
101

Inteligentní dokument / Intelligent document

Šprta, Vlastimil January 2012 (has links)
This diploma thesis, interested in intelligent documents, covers, in its introductory chapters, the basic problematics of inteligent documents. The major part of major part of these theorethical chapters is devoted to the analysis of possible practical applications of certain parts of knowledge management. The second part of the thesis, focused more on a practical usage of intelligent documents, includes the proposition of the actual structure and the realization of the specific intelligent document. This part also includes the evaluation and the examples of the differences between an ordinary electronic document and an intelligent document. The conclusion of the practical part of the thesis is the summary of all the findings concerning the practical implementation of an intelligent document and the evaluation of possible applications, extension possibilities and changes of such intelligent document.
102

The Cluster Hypothesis: A Visual/Statistical Analysis

Sullivan, Terry 05 1900 (has links)
By allowing judgments based on a small number of exemplar documents to be applied to a larger number of unexamined documents, clustered presentation of search results represents an intuitively attractive possibility for reducing the cognitive resource demands on human users of information retrieval systems. However, clustered presentation of search results is sensible only to the extent that naturally occurring similarity relationships among documents correspond to topically coherent clusters. The Cluster Hypothesis posits just such a systematic relationship between document similarity and topical relevance. To date, experimental validation of the Cluster Hypothesis has proved problematic, with collection-specific results both supporting and failing to support this fundamental theoretical postulate. The present study consists of two computational information visualization experiments, representing a two-tiered test of the Cluster Hypothesis under adverse conditions. Both experiments rely on multidimensionally scaled representations of interdocument similarity matrices. Experiment 1 is a term-reduction condition, in which descriptive titles are extracted from Associated Press news stories drawn from the TREC information retrieval test collection. The clustering behavior of these titles is compared to the behavior of the corresponding full text via statistical analysis of the visual characteristics of a two-dimensional similarity map. Experiment 2 is a dimensionality reduction condition, in which inter-item similarity coefficients for full text documents are scaled into a single dimension and then rendered as a two-dimensional visualization; the clustering behavior of relevant documents within these unidimensionally scaled representations is examined via visual and statistical methods. Taken as a whole, results of both experiments lend strong though not unqualified support to the Cluster Hypothesis. In Experiment 1, semantically meaningful 6.6-word document surrogates systematically conform to the predictions of the Cluster Hypothesis. In Experiment 2, the majority of the unidimensionally scaled datasets exhibit a marked nonuniformity of distribution of relevant documents, further supporting the Cluster Hypothesis. Results of the two experiments are profoundly question-specific. Post hoc analyses suggest that it may be possible to predict the success of clustered searching based on the lexical characteristics of users' natural-language expression of their information need.
103

En utforskning av elektronisk dokumentations säkerhet : Tekniska aspekter av digitala signaturer: Utveckling av en prototyp för elektronisk Dokumentations säkerhet / An exploration of electronic documentation security : Technical aspects of digital signatures: Development of a prototype for electronic document security

Kelati, Jonatan January 2024 (has links)
Denna rapport presenterar ett utvecklingsarbete av standardiserade tillvägagångssätt för att bygga ett ramverk för dokumentsignering. Studien fokuserar på tre olika delar av dokumentsigneringen. De tre delarna är identitetsautentisering, signering och verifiering av signering samt versionshantering. Efter att ha utfört en undersökning konstaterades det att den mest lämpliga lösningen för detta system är att använda X.509v3-certifikat som autentiseringsmetod för identiteter, tillsammans med en PKI( Public Key Infrastructure). För signering och verifiering så används digitala signaturer tillsammans med algoritmerna SHA-2 samt RSA, vilket är två välkända och populära tillvägagångsätt i dessa sammanhang. Andra tillvägagångssätt har diskuterats samt framtida utvecklingsmöjligheter och förbättringar. / This report presents an investigation into different standardized approaches to building a framework for document signing. The study focuses on three different parts of document signing. The three parts are identity authentication, signing and verification of signing and version management. Through the investigation of standards in the market, it was found that a solution using X.509v3 certificates as an authentication method for identities together with a PKI (Public Key Infrastructure) was best suited for this system. For signing and verification, digital signatures are used together with the algorithms SHA-2 and RSA, which are two well-known and popular approaches in these contexts. Other approaches have been discussed as well as future development possibilities and improvements. / Datateknik, Dokumenthantering, Säkerhet, Dokumentsäkerhet
104

A model of genre in document layout

Allen, Patrick T., Bateman, J., Delin, J. January 2003 (has links)
No / We present a framework for the describing the genres of illustrated documents, based on analysis at five levels: content structure, rhetorical structure, layout structure, navigation structure, and linguistic structure. We also include three sources of constraints under which a document might be produced and interpreted: canvas constraints, production constraints, and consumption constraints. Document genres are conceptualised as complex specifications composed of descriptions at each of the five levels that conform in characteristic ways to the three kinds of constraint. We propose that the eight parameters together form a 'space' of possible identities for documents, electronic or paper. The notion of 'genre space' captures the fact that it is possible for new genres to develop at different positions in the space, as well enabling relationships between document types, or even transformations between them, to be examined and described.
105

Assessing Pharmacy Curriculum: A Disease-Specific Demonstration of an Outcomes Expected Document

Bratrud, Lara, Frick, Jacob January 2007 (has links)
Class of 2007 Abstract / Objectives: The purpose of this study was to evaluate the required didactic curriculum of the graduating class of 2007 of the University of Arizona College of Pharmacy by assessing the extent that it satisfied the Outcomes Expected document. The curriculum was evaluated specifically for the disease states of diabetes and hypertension, as well as general pharmacy areas. This also offered insight into which areas of the document needed to be addressed more completely in the pharmacy curriculum. Methods: This was a retrospective analysis using the graduating class of 2007 as a cohort for evaluating the competencies. Course materials from required courses were reviewed to identify components that were met. Results: When all components were analyzed, the curriculum addressed 85.2% of the outcomes expected. All but 1 component of Domain 1.0 was covered, 95.8% (23/24), and Domain 2.0 was completely covered (23/23). While Domain 3.0 was not addressed in the required curriculum, students may have experienced these competencies through extracurricular activities. Coverage of both disease specific topics, diabetes and hypertension, was evidenced identically with course material. All components specific to the disease state were covered 85.7% (18/21). Domain 1.0 was addressed 88.9% (16/18), Domain 2.0 was addressed 66.7% (2/3), and Domain 3.0 was not addressed in the documentation. Conclusions: The documented curriculum of the graduating class of 2007 at the University of Arizona College of Pharmacy did not fulfill all components in the Outcomes Expected document. While some areas may have been addressed, documentation was lacking. We encourage course directors to reevaluate their curriculum to ensure areas not evidenced with coverage are addressed. We also urge more stringent documentation of the areas that were not evidenced with documentation.
106

Generování výstupních sestav v prostředí webu / Generating printouts on the Web

Kolafa, Lukáš January 2010 (has links)
Today it is very often necessary to print different documents from company information systems. These documents, that are designed to represent the company, contain information that is usually stored in databases. The goal of this thesis is to show the methods for the automatic conversion of data into formatted documents. My aim is to show some methods, how to automatically generate printouts and how to create templates for them in an easy way. For the purpose of this thesis, I've developed a small web application, which stands for an information system of a logistics company. The application allows creating documents with the help of templates. All documents are generated in generally common formats.
107

Unknown Date (has links)
This document has could not be found.
108

Clustering in Swedish : The Impact of some Properties of the Swedish Language on Document Clustering and an Evaluation Method

Rosell, Magnus January 2005 (has links)
<p>Text clustering divides a set of texts into groups, so that texts within each group are similar in content. It may be used to uncover the structure and content of unknown text sets as well as to give new perspectives on known ones. The contributions of this thesis are an investigation of text representation for Swedish and an evaluation method that uses two or more manual categorizations.</p><p>Text clustering, at least such as it is treated here, is performed using the vector space model, which is commonly used in information retrieval. This model represents texts by the words that appear in them and considers texts similar in content if they share many words. Languages differ in what is considered a word. We have investigated the impact of some of the characteristics of Swedish on text clustering. Since Swedish has more morphological variation than for instance English we have used a stemmer to strip suffixes. This gives moderate improvements and reduces the number of words in the representation.</p><p>Swedish has a rich production of solid compounds. Most of the constituents of these are used on their own as words and in several different compounds. In fact, Swedish solid compounds often correspond to phrases or open compounds in other languages.In the ordinary vector space model the constituents of compounds are not accounted for when calculating the similarity between texts. To use them we have employed a spell checking program to split compounds. The results clearly show that this is beneficial.</p><p>The vector space model does not regard word order. We have tried to extend it with nominal phrases in different ways. Noneof our experiments have shown any improvement over using the ordinary model.</p><p>Evaluation of text clustering results is very hard. What is a good partition of a text set is inherently subjective. Automatic evaluation methods are either intrinsic or extrinsic. Internal quality measures use the representation in some manner. Therefore they are not suitable for comparisons of different representations.</p><p>External quality measures compare a clustering with a (manual) categorization of the same text set. The theoretical best possible value for a measure is known, but it is not obvious what a good value is -- text sets differ in difficulty to cluster and categorizations are more or less adapted to a particular text set. We describe an evaluation method for cases where a text set has more than one categorization. In such cases the result of a clustering can be compared with the result for one of the categorizations, which we assume is a good partition. We also describe the kappa coefficient as a clustering quality measure in the same setting.</p> / <p>Textklustring delar upp en mängd texter i grupper, så att texterna inom dessa liknar varandra till innehåll. Man kan använda textklustring för att uppdaga strukturer och innehåll i okända textmängder och för att få nya perspektiv på redan kända. Bidragen i denna avhandling är en undersökning av textrepresentationer för svenska texter och en utvärderingsmetod som använder sig av två eller fler manuella kategoriseringar.</p><p>Textklustring, åtminstonde som det beskrivs här, utnyttjar sig av den vektorrumsmodell, som används allmänt inom området. I denna modell representeras texter med orden som förekommer i dem och texter som har många gemensamma ord betraktas som lika till innehåll. Vad som betraktas som ett ord skiljer sig mellan språk. Vi har undersökt inverkan av några av svenskans egenskaper på textklustring. Eftersom svenska har större morfologisk variation än till exempel engelska har vi tagit bort suffix med hjälp av en stemmer. Detta ger lite bättre resultat och minskar antalet ord i representationen.</p><p>I svenska används och skapas hela tiden fasta sammansättningar. De flesta delar av sammansättningar används som ord på egen hand och i många olika sammansättningar. Fasta sammansättningar i svenska språket motsvarar ofta fraser och öppna sammansättningar i andra språk. Delarna i sammansättningar används inte vid likhetsberäkningen i vektorrumsmodellen. För att utnyttja dem har vi använt ett rättstavningsprogram för att dela upp sammansättningar. Resultaten visar tydligt att detta är fördelaktigt</p><p>I vektorrumsmodellen tas ingen hänsyn till ordens inbördes ordning. Vi har försökt utvidga modellen med nominalfraser på olika sätt. Inga av våra experiment visar på någon förbättring jämfört med den vanliga enkla modellen.</p><p>Det är mycket svårt att utvärdera textklustringsresultat. Det ligger i sakens natur att vad som är en bra uppdelning av en mängd texter är subjektivt. Automatiska utvärderingsmetoder är antingen interna eller externa. Interna kvalitetsmått utnyttjar representationen på något sätt. Därför är de inte lämpliga att använda vid jämförelser av olika representationer.</p><p>Externa kvalitetsmått jämför en klustring med en (manuell) kategorisering av samma mängd texter. Det teoretiska bästa värdet för måtten är kända, men vad som är ett bra värde är inte uppenbart -- mängder av texter skiljer sig åt i svårighet att klustra och kategoriseringar är mer eller mindre lämpliga för en speciell mängd texter. Vi beskriver en utvärderingsmetod som kan användas då en mängd texter har mer än en kategorisering. I sådana fall kan resultatet för en klustring jämföras med resultatet för en av kategoriseringarna, som vi antar är en bra uppdelning. Vi beskriver också kappakoefficienten som ett kvalitetsmått för klustring under samma förutsättningar.</p>
109

Des médias au travail. Emprunts, transferts, métamorphoses.

Cotte, Dominique 05 November 2007 (has links) (PDF)
Ce travail analyse la façon dont les transformations médiatiques affectent également les outils développés dans le cadre du travail et des organisations (intranets, portails), en relevant que l'approche par l'étude des matérialités documentaires vient compléter et renouveler les approches plus classiques de la sociologie du travail, la communication des organisations ou des sciences de la gestion.
110

Fast registration of tabular document images using the Fourier-Mellin Transform /

Hutchison, Luke A. D. January 2003 (has links) (PDF)
Thesis (M.S.)--Brigham Young University. Dept. of Computer Science, 2003. / Includes bibliographical references (p. 120-130).

Page generated in 0.0442 seconds