Search for dissertations about: "semantic representation"

Showing result 11 - 15 of 75 swedish dissertations containing the words semantic representation.

2. 11. The three-dimensional normal-distributions transform : an efficient representation for registration, surface analysis, and loop detection

   Author : Martin Magnusson; Achim Lilienthal; Wolfram Burgard; Örebro universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NDT; 3D sensing; surface representation; registration; loop detection; surface analysis; mobile robotics; localisation; mapping; Computer science; Datavetenskap; Computer and Systems Science; Data- och systemvetenskap;

   Abstract : This dissertation is concerned with three-dimensional (3D) sensing and 3D scan representation. Three-dimensional records are important tools in several disciplines; such as medical imaging, archaeology, and mobile robotics. READ MORE

4. 12. The Physical Foundation of the Patterning of Physical Action Verbs : A Study of Chinese Verbs

   Author : Hong Gao; Allmän språkvetenskap; []
   Keywords : HUMANIORA; HUMANITIES; Languages and literatures of South and South-East Asia; verbal semantics; trajector; semantic representation; pyscholingistics; polysemy; physical reality; physical foundation; physical action verbs; observability; motion; lexicalization patterning; landmark; intentionality; innateness; physical contact; force-dynamics; combinability; conflation; cognitive semantics; active zone; affectability; Chinese; Kinesiska och språk och litteratur från Syd- och Sydostasien; Linguistics; Lingvistik; Grammar; semantics; semiotics; syntax; Grammatik; semantik; semiotik;

   Abstract : This work is a study of verbal semantics with a focus on the discussion and illustration of the role of body parts and the semantic incorporation into verbal roots of the actions that involve various body parts. Following a general discussion of the basic issues of language construction and human body actions with the image schemas of force-dynamics presented in line with the framework of cognitive semantics, it is argued that the event structures of physical action verbs are not arbitrarily constructed but rather the constructions are built through systematic cognitive processes in relation to both human physical reality and concrete reality in the world. READ MORE

5. 13. Functional understanding of space : Representing spatial knowledge using concepts grounded in an agent's purpose

   Author : Kristoffer Sjöö; Patric Jensfelt; David Vernon; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; spatial representation; autonomous robots; spatial understanding; semantic mapping; spatial relations; visual search; robot search;

   Abstract : This thesis examines the role of function in representations of space by robots - that is, dealing directly and explicitly with those aspects of space and objects in space that serve some purpose for the robot. It is suggested that taking function into account helps increase the generality and robustness of solutions in an unpredictable and complex world, and the suggestion is affirmed by several instantiations of functionally conceived spatial models. READ MORE

6. 14. Unsupervised construction of 4D semantic maps in a long-term autonomy scenario

   Author : Rares Ambrus; Patric Jensfelt; John Folkesson; Andreas Nüchter; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Mobile robotics; autonomous systems; perception; computer vision; RGB-D object segmentation; modelling and recognition; semantic segmentation; long-term autonomy; mapping; temporal modeling; Computer Science; Datalogi;

   Abstract : Robots are operating for longer times and collecting much more data than just a few years ago. In this setting we are interested in exploring ways of modeling the environment, segmenting out areas of interest and keeping track of the segmentations over time, with the purpose of building 4D models (i.e. READ MORE

7. 15. Order-preserving graph grammars

   Author : Petter Ericson; Henrik Björklund; Frank Drewes; Sebastian Maneth; Umeå universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Graph grammars; graph parsing; graph series; hyperedge replacement; uniform parsing problem; abstract meaning representation; semantic modelling; order preservation; reentrancy preservation; minimally adequate teacher; weighted graph grammars;

   Abstract : The field of semantic modelling concerns formal models for semantics, that is, formal structures for the computational and algorithmic processing of meaning. This thesis concerns formal graph languages motivated by this field. READ MORE