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13281 Uppsatser om Content-based image retrieval - Sida 3 av 886

Google Scholar eller Scirus för vetenskapligt material på webben? En utvärdering och jämförelse av återvinningseffektivitet.

This thesis evaluates and compares the retrieval effectiveness of the two search engines Google Scholar and Scirus, which both specialises in indexing scholarly material on the web as well as journal articles. Thirty search queries are used and the first twenty retrieved documents for each query are examined for topical relevance and scholarly content. The search queries are based on legitimate information needs taken from a scientific questionbox on the web. Queries are expressed with advanced search operators and are the same for both search engines. Precise relevance criteria are set up and a binary scale is used when judging.

Musikwebb ? En evaluering av webbtjänstens återvinningseffektivitet

The aim of this thesis was to evaluate the music downloading service Musikwebb regarding its indexing and retrieval effectiveness. This was done by performing various kinds of search in the system. The outcome of these searches were then analysed according to the criteria specificity, precision, recall, exclusivity and authority control. The study showed that Musikwebb had several flaws regarding its retrieval effectiveness. The most prominent cases were the criteria exclusivity and specificity.

Socialsekreteraren har ordet! En studie av hur ungdomar beskrivs i socialtjänstens yttranden avseende unga lagöverträdare.

The purpose of this essay was to examine how youths are described in certain written statements that are produced by the social services. The statements that this study has focused on, are those written with the purpose of serving the court with suggestions of treatment-measures when a person between 15 and 18 is suspected of having committed a crime. The main issues were: How is the content in these statements described and what do these descriptions tell the reader? Do the images of youths in the statements differ, depending on the degree of intervention for the suggested treatment-measure? The essay is based on a qualitative content-analysis of 50 statements and the material has been analysed from a social-constructive theoretical perspective.The study shows that the youths in the statements are described through descriptions that reinforces a positive or a negative image of the youth, and that these descriptions are described as either utterances or facts. Depending on the degree of intervention for the suggested treatment-measures, the information in the statements differ in that descriptions that are likely to reinforce a positive image of the youth are more frequent in the statements where no or less intervening treatment-measures is suggested.

Tilltal i bild och text : En studie av gymnasieskolors hemsidor ur ett kommunikationsperspektiv

Due to political decisions regarding the Swedish school, public and independent schools booth face the need topromote themselves in the quest for new pupils. This study aims to, from a communications perspective, examine how four selected upper secondary schools address their target audience; the pupils?to?be, on their homepages. Additionally, I intend to investigate whether, and if so, how, said addressing can be connected to the different target groups applying to the schools in question.The questions asked in this study regard the way in which the selected schools describe themselves on their homepage; how do they use the textual and visual content to address their audience, and can there be disagreement between the meaning of the text and that of the image? To answer these questions, I use a theoretical base made out of visual communication and semiotic as well as rhetorical analyses.The methodological procedure is a qualitative approach on the matter, allowing me to understand the ?what? of the content on the homepages, as well as the ?how? it?s being communicated.

En illustrativ tolkning av Carl-Einar Häckner i form av en webbmiljö

This project is a study in how to represent the Swedish magician and variety artist Carl-Einar Häckner in a web-based environment. With a starting point focusing on illustration I wanted to produce a web environment that would function as a prototype for a webpage. My personal aim was to explore and gain new experiences from working in a digital interactive environment. I wanted to use animation and illustration to create an atmosphere and communicate emotions, and in the end find out a way of how to integrate that with a more text based content. The project is a personal project based on my interpretation of the work of Carl-Einar Häckner and an effort to translate Häckners expression and the emotions he evokes in his variety shows into image..

Porträtt av personer med funktionsnedsättningar : - En kvantitativ och kvalitativ undersökning om den bild SVT:s respektive TV4:s nyhetsinslag skapar av personer med funktionsnedsättningar

The study has answered the questions to what extent people with disabilities are involved in SVT- and TV4- news reports and how people with disabilities are represented in news reports. The material is based on 140 news items.The study has demonstrated that news reports SVT and TV4 have different grades of misconceptions about disabled people. Disabled people are constantly being reinforced by negative disabling terms, the disability being of central importance for the news broadcast and they still occur in stereotypical depictions. Through the image of disabled people forms the bed-rock on which the attitudes towards, assumptions and expectations of disabled people are based on. They are fundamental to discrimination and exploitation that people with disabilities face on a daily basis, and contributes significantly to their systematic exclusion from mainstream society.

Att sjunga en fråga. En jämförelse av tre Query-by-Humming-system och deras användare.

The aim of this study was to compare the Query-by-Humming systems Midomi, Musicline and Tunebot regarding their retrieval effectiveness. The aim was to see if there were differences between the systems but also between the user groups common users, musicians and singers. Query-by-Humming system means that the user sings a tune that the system then use to find the right melody.To compare the systems and their users, queries where collected from the different user groups and replayed for the systems. Mean Reciprocal Rank and Friedman test was used to do the comparison.The results showed that the system did not achieve equivalent and that there were no difference between the user groups. The Mean Reciprocal Rank showed that the systems had very different retrieval effectiveness, where Midomi was the system with best result and Musicline with the lowest result..

Dior - Ett lyxmodemärke i kris : - En studie i argumentens bild av händelsen

ABSTRACT The purpose of this essay has been to analyse an incident that received huge attention in the media that took place on February 24 2011 involving the famous fashion designer John Galliano. Galliano who at the time served as a creative director at French luxury fashion house Dior hurled anti-Semitic remarks during an altercation to a couple at Paris café La Perle. We intended to do a study of the material in two parts. The primary focus of our thesis was to analyse six different newspaper articles that involved the incident. We chose to analyse three articles from Great Britain and three from the United States to get a versatile image of the incident.

VeckoRevyn ? din bästa vän i vått och torrt? : En kvalitativ undersökning om innehåll och tilltalssätt i VeckoRevyn.

?VeckoRevyn ? your best friend in good times and bad?? is a BA thesis based on a weekly lifestyle magazine, VeckoRevyn, with a female demographic aged 18-25. Issues of the magazine, published in 2009 and on, is analyzed and dissected to better understand and be able to get answers for the questions of issue. What is said in the magazine, and how does the message reach the audience? Furthermore, the message, as well as the tone used to convey it, is reviewed as part of the discussion about consequence.

Att expandera sökfrågor i en elektronisk bibliotekskatalog: En jämförelse av återvinningseffektiviteten för fyra olika sökfrågetyper

This Masters thesis deals with query expansion in an online library catalogue. The aim of the study was to compare the retrieval effectiveness of four different query types when applied to the online library catalogue of the University College of Borås. The query types were: an initial query, the initial query with right hand truncation, the initial query expanded with synonyms and finally the initial query expanded with synonyms and right hand truncation. 24 topics were formulated, and four queries for each topic were constructed. The records retrieved by the searches were judged with regard to topicality, and were judged to be non-relevant, partially relevant or relevant.

Registrering av konstbilder: En översikt av forskning och praktik i en domänspecifik form av kunskapsorganisation

The purpose of this thesis is to present a review of research themes and practice in the field of art image registration. The objectives of the review are twofold. The primary task is to distinguish which problems, in regard to theory and practice, that have been dealt with in the field of art image registration and the secondary task is to investigate which discursive, institutional and tool-related factors have had an impact on theoretical discussions and practice in the art image domain. The empirical content in the review is structured according to four epistemological viewpoints and is analyzed with a domain analytical approach. The result of the study is that two major problems are frequently discussed in the art image domain, namely lack of standardization and which discourse is the best suited for registration of art images.

Folkbiblioteks image på Facebook : Undersökning av fyra folkbiblioteks imageskapande och mottagande på Facebook

This essay was to investigate what self-image public libraries convey on Facebook and what image is received by the users, along with comparison of those. It was investigated if the received image corresponded with the users? previous image of public libraries. The method used was interviews with the Facebook administrators and surveys with the users. The theoretical framework was Kotler?s model for image creation.The research is mainly American and shows Facebook as an accepted marketing tool for libraries among students, but as not taken seriously by the library staff.

Bildförbättring över en bildsekvens

When SKL (Swedish National Laboratory of Forensic Science) gets images to analyse, the task often is to identify a person or an object. In that work it?s important to find features. Unfortunately images from camera surveillances often contain a lot of noise, so details can be hard to discern.A simple method to improve an image from a sequence is to compute the mean of some of the images. However, the part of interest in the image has to be in the same position in all images.

Finnes: flata. Sökes: information. Om lesbiska, informationsbehov och ämnesbestämning av skönlitteratur.

The aim of this Masters thesis is, partly, to examine the information needs of lesbians: what discernable information needs they have, how they seek information and which information sources they use. The purpose is also to examine what part fiction plays regarding the information needs mentioned above and how fiction indexing could improve retrieval. The study is conducted through ten qualitative interviews with lesbians as well as through textual analysis. The theoretical framework includes queer theory and theory concerning information needs and uses. The results indicate that lesbians have evident information needs that mostly concern identity.

OPAC i moderna kläder ? en kvalitativ studie om olika generationers informationssökningsvanor och förväntningar på informationsåtervinningssystem

The purpose of this bachelor thesis is to find out how information seeking habits and experiences of people in different generations affects their expectations on information retrieval systems like OPAC. Two OPACs are used, one web-OPAC and one mobile-OPAC. The following questions are asked: how can theories about information seeking behaviors explain why and in which way one seeks information? In which way does information seeking behaviors and habits affect the experience of OPAC? Which differences and/or similarities can be found between the web-OPAC and the mobile-OPAC? How does generational aspects affect experiences and preferences in an information seeking context? The theoretical framework of the thesis is information retrieval with several models about information-seeking/searching needs and behaviors. The empirical data contains interviews with nine people in different generations and protocols about two different OPACs.

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