Sökning: "fredrik åström"

Hittade 5 avhandlingar innehållade orden fredrik åström.

1. 1. The social and intellectual development of library and information science

   Författare :Fredrik Åström; Olle Persson; Pertti Vakkari; Umeå universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; library and information science; sociology of science; scholarly communication; ; Library and information science; Biblioteks- och informationsvetenskap;

   Sammanfattning : The background of the project is partly found in a long tradition within library and information science (LIS) of meta-analyses on the field, partly in a science studies discussion on research fields and their contextual relation to wider academia, fields of professionalpractices and professionalization processes. The general purpose of the project is to analyze the social and intellectual development and organization of LIS; and to investigate the impact of the close relation to the practice field, as well as the relation to the academic world in general. LÄS MER

3. 2. Ground Object Recognition using Laser Radar Data : Geometric Fitting, Performance Analysis, and Applications

   Författare :Christna Grönwall; Fredrik Gustafsson; Kalle Åström; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Laser radar; object detection; object recognition; performance; least squares; ICP; Cramér-Rao; Signal processing; Signalbehandling;

   Sammanfattning : This thesis concerns detection and recognition of ground object using data from laser radar systems. Typical ground objects are vehicles and land mines. For these objects, the orientation and articulation are unknown. The objects are placed in natural or urban areas where the background is unstructured and complex. LÄS MER

4. 3. Following the Footnotes : A Bibliometric Analysis of Citation Patterns in Literary Studies

   Författare :Björn Hammarfelt; Kerstin Rydbeck; Fredrik Åström; Paul Wouters; Uppsala universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Bibliometrics; citation analysis; scholarly communication; research practices; literary studies; the humanities; visualization; Biblioteks- och informationsvetenskap; Library and Information Science; Library and Information Science;

   Sammanfattning : This thesis provides an in-depth study of the possibilities of applying bibliometric methods to the research field of literary studies. The four articles that constitute the backbone of this thesis focus on different aspects of references and citations in literary studies: from the use of references in the text to citation patterns among 34 literature journals. LÄS MER

5. 4. Approximative Uncertainty in Neural Network Predictions

   Författare :Magnus Malmström; Fredrik Gustafsson; Daniel Axehill; Isaac Skog; Kalle Åström; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : Suppose data-driven black-box models, e.g., neural networks, should be used as components in safety-critical systems such as autonomous vehicles. In that case, knowing how uncertain they are in their predictions is crucial. LÄS MER

7. 5. Tracking of Animals Using Airborne Cameras

   Författare :Clas Veibäck; Gustaf Hendeby; Fredrik Gustafsson; Kalle Åström; Linköpings universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

   Sammanfattning : The various elements of a modern target tracking framework are covered. Background theory on pre-processing, modelling and estimation is presented as well as some novel ideas on the topic by the author. In addition, a few applications are posed as target tracking problems for which solutions are gradually constructed as relevant theory is covered. LÄS MER