Essays about: "speller"

Found 3 essays containing the word speller.

1. 1. EEG enhancement for EEG source localization in brain-machine speller

   University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

   Author : Parinaz Babaeeghazvini; [2013]
   Keywords : Brain-Computer interface BCI ; Brain-machine speller; Electroencephalogram EEG ; source localization; source reconstruction;

   Abstract : A Brain-Computer Interface (BCI) is a system to communicate with external world through the brain activity. The brain activity is measured by Electro-Encephalography (EEG) and then processed by a BCI system. EEG source reconstruction could be a way to improve the accuracy of EEG classification in EEGbased brain–computer interface (BCI). READ MORE

3. 2. Localization of Brain Activity in Electroencephalography Data during Brain-Computer Interface Operation

   University essay from Lunds universitet/Avdelningen för Biomedicinsk teknik

   Author : Oskar Hjärtquist; [2011]
   Keywords : P300 ; N200; Event-related potential ERP; Noise Subspace Fitting NSF ; Null Space Projection NP ; Localization; Dipole source; Elec- troencephalography EEG ; Brain-Computer Interface BCI Speller; Technology and Engineering;

   Abstract : In this Master's thesis I present a means of finding active sources of cortical electrical activity from electroencephalogram (EEG) data acquired during operation of a brain-computer interface (BCI). A novel subspace-based technique was used to suppress spatially correlated EEG interference sources, followed by a technique that estimates the source parameters with a near maximum likelihood performance. READ MORE

4. 3. Real Exchange Rate Determinants in the Industrialised Commodity Currency Economies: An error-correction framework

   University essay from Handelshögskolan i Stockholm/Institutionen för nationalekonomi

   Author : William Speller; [2006]
   Keywords : commodity currency; real exchange rate; error-correction model;

   Abstract : Although located at far-flung points of the globe, Australia, Canada, Iceland, New Zealand and Norway have an intrinsic similarity and together represent an anomaly in international macroeconomics; they are the industrialised commodity currency economies. These five nations have advanced and developed while maintaining their traditional dependence on primary resources, thereby exposing the value of their respective currencies to the volatility of global commodity price cycles. READ MORE