Sökning: "online assessment"

Visar resultat 11 - 15 av 105 avhandlingar innehållade orden online assessment.

1. 11. Aspects of Modeling Fraud Prevention of Online Financial Services

   Författare :Gorton Dan; Lars-Göran Mattsson; Simin Nadjm-Tehrani; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Online banking; fraud; incident response; metrics; incident response tree IRT ; value at risk VaR ; simulation; Transportvetenskap; Transport Science;

   Sammanfattning : Banking and online financial services are part of our critical infrastructure. As such, they comprise an Achilles heel in society and need to be protected accordingly. The last ten years have seen a steady shift from traditional show-off hacking towards cybercrime with great economic consequences for society. LÄS MER

3. 12. Data-driven methods for real-time voltage stability assessment

   Författare :Hannes Hagmar; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; security assessment; neural networks; Dynamic voltage security margin; machine learning; voltage instability prediction; voltage stability;

   Sammanfattning : Voltage instability is a phenomenon that limits the operation and the transmission capacity of a power system. An operation state close to the security limits enables a cost-effective utilization of the system but it could also make the system more vulnerable to disturbances. LÄS MER

4. 13. Knowledge at play. Studies of games as members’ matters : Kunskap genom spelande. Studier av digitala spel och spelande som kunskapsdomän

   Författare :Ulrika Bennerstedt; Göteborgs universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; digital games; collaborative gaming; gameplay; learning; skill; transfer; coordinated action; professionalization; game education; assessment; institutionalization; gaming literacy; ethnomethodology;

   Sammanfattning : On a general level, this thesis seeks some answers to the broad question of what one can learn from digital games. With an analytical approach informed by ethnomethodology, the main thrust of the work is an exploration of members’ matters in the area of games and gaming. LÄS MER

5. 14. Designs for Learning in an Extended Digital Environment : Case Studies of Social Interaction in the Social Science Classroom

   Författare :Susanne Kjällander; Staffan Selander; Eva Svärdemo Åberg; Ria Heilä-Ylikallio; Stockholms universitet; []
   Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; interaction; learning; meaning-making; digital learning resources; Social Science; school; classroom; pupils; teachers; didactic design; digital interface; assessment; designs for learning; multimodality; Education; Pedagogik; Didactics; didaktik;

   Sammanfattning : This thesis studies designs for learning in the extended digital interface in the Social Science classroom. The aim is to describe and analyse how pupils interact, make meaning and learn while deploying digital learning resources. Together with the thesis a multimodal design theoretical perspective on learning has developed: Designs for Learning. LÄS MER

7. 15. Network models with applications to genomic data: generalization, validation and uncertainty assessment

   Författare :José Sánchez; Göteborgs universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Inverse covariance matrix; precision matrix; graphical models; high-dimension; low-sample; networks; sparsity; fused lasso; elastic net; cancer; TCGA pan cancer analysis; online resource; discriminant analysis; classification; networks;

   Sammanfattning : The aim of this thesis is to provide a framework for the estimation and analysis of transcription networks in human cancer. The methods we develop are applied to data collected by The Cancer Genome Atlas (TCGA) and supporting simulations are based on derived models in order to reflect real data structure. LÄS MER