Sökning: "random maps"

Visar resultat 31 - 35 av 38 avhandlingar innehållade orden random maps.

1. 31. Computational modelling in systems biology: from rewriting cell fates to detecting tumours

   Författare :Emil Andersson; Centrum för miljö- och klimatvetenskap (CEC); []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Beräkningsmodeller; Systembiologi; Genreguleringsnätverk; Cellomprogrammering; Energilandskap; iPSC; Agentbaserad modellering; T-cellsutveckling; Maskininlärning; Tumördiagnostik; Computational modelling; Systems biology; Gene regulatory network; Cell reprogramming; Energy landscape; iPSC; Agent-based modelling; Multi-scale modelling; T-cell development; Machine learning; Tumour diagnostics;

   Sammanfattning : Computational modelling is becoming an increasingly important tool in biological research. By performing computer simulations of models, it becomes possible to test theories about a biological system against experimental data. Simulations can also be used as a replacement for experiments otherwise unattainable. LÄS MER

3. 32. With or without context : Automatic text categorization using semantic kernels

   Författare :Johan Eklund; Högskolan i Borås; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; automatic text categorization; subject classification; machine learning; computational linguistics; support vector machines; semantic kernels; term weighting; divergence from randomness; Library and Information Science; Biblioteks- och informationsvetenskap;

   Sammanfattning : In this thesis text categorization is investigated in four dimensions of analysis: theoretically as well as empirically, and as a manual as well as a machine-based process. In the first four chapters we look at the theoretical foundation of subject classification of text documents, with a certain focus on classification as a procedure for organizing documents in libraries. LÄS MER

4. 33. Model Error Compensation in ODE and DAE Estimators : with Automotive Engine Applications

   Författare :Erik Höckerdal; Erik Frisk; James Peyton-Jones; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Information technology; Informationsteknik; Automatic control; Reglerteknik;

   Sammanfattning : Control and diagnosis of complex systems demand accurate information of the system state to enable efficient control and to detect system malfunction. Physical sensors are expensive and some quantities are hard or even impossible to measure with physical sensors. This has made model-based estimation an attractive alternative. LÄS MER

5. 34. How has time and space affected plant biodiversity in the Hjälmö-Lådna archipelago?

   Författare :Josefin Reimark; Sara Cousins; Regina Lindborg; Urban Emanuelsson; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physical Geography; naturgeografi;

   Sammanfattning : Traditionally European farmland management has declined during the last century, mainlydue to abandonment or intensification. When traditional management is replaced by newmethods many species are negatively affected and often threatened with extinction. LÄS MER

7. 35. Applications of Magnetic Tracers in the Human Lung and Gastrointestinal Tract

   Författare :Mikael Forsman; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; inverse solution; gastrointestinal motility; inhaled particles; gastric emptying; welding dust; MPG; pulmonary clearance; occupational health; magnetopneumography; multipole analysis; transit time;

   Sammanfattning : The use of ferrimagnetic material as a tracer represents a noninvasive approach in physiological measurements. Concerning the lung, magnetopneumography, MPG, is a unique technique to estimate retained dust in the lung, using the magnetizable dust fraction as a tracer. First a strong constant magnetic field is briefly applied to the thorax. LÄS MER