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A New ANEW: Evaluation of a Word List for Sentiment Analysis in Microblogs
- F. Nielsen
- Computer Science#MSM
- 15 March 2011
This work wanted to examine how well ANEW and other word lists performs for the detection of sentiment strength in microblog posts in comparison with a new word list specifically constructed for microblogs.
Good Friends, Bad News - Affect and Virality in Twitter
It is hypothesized that negative news content is more likely to be retweeted, while for non-news tweets positive sentiments support virality, and evidence that negative sentiment enhances virality in the news segment, but not in the non- news segment is presented.
Modeling the hemodynamic response in fMRI using smooth FIR filters
- Cyril Goutte, F. Nielsen, L. K. Hansen
- EngineeringIEEE Transactions on Medical Imaging
- 1 December 2000
The authors adopt a semi-parametric approach based on finite impulse response (FIR) filters, and introduce a Gaussian process prior on the filter parameters to cope with the increase in the number of degrees of freedom.
In addition to its direct role in motor control, the cerebellum is necessary for several types of motor learning, most notably learning to adjust to changes in sensorimotor relationships.
On Clustering fMRI Time Series
- Cyril Goutte, P. Toft, E. Rostrup, F. Nielsen, L. K. Hansen
- Computer Science, PsychologyNeuroImage
- 1 March 1999
Two different clustering algorithms are presented and used to identify regions of similar activations in an fMRI experiment involving a visual stimulus and a novel metric is employed that measures the similarity between the activation stimulus and the fMRI signal.
“The sum of all human knowledge”: A systematic review of scholarly research on the content of Wikipedia
- Mostafa Mesgari, Chitu Okoli, Mohamad Mehdi, F. Nielsen, Arto Lanamäki
- BusinessJ. Assoc. Inf. Sci. Technol.
- 1 February 2015
This study addresses the issue of little consensus on many aspects of Wikipedia's content as an encyclopedic collection of human knowledge by systematically reviewing 110 peer‐reviewed publications on Wikipedia content, summarizing the current findings, and highlighting the major research trends.
The Brede database: a small database for functional neuroimaging
- F. Nielsen
- Computer Science
Data The database is inspired by the hierarchical structure of BrainMap  with scientific articles (“bib” structures) on the highest level containing one or more experiments (“exp” structure”,…
Generalizable Patterns in Neuroimaging: How Many Principal Components?
It is shown how the generalization error can be used to select the number of principal components in two analyses of functional magnetic resonance imaging activation sets.
Scientific citations in Wikipedia
- F. Nielsen
- Computer ScienceFirst Monday
- 15 May 2007
Results show an increasing use of structured citation markup and good agreement with citation patterns seen in the scientific literature though with a slight tendency to cite articles in high-impact journals such as Nature and Science, which increases confidence in Wikipedia as a reliable information resource for science in general.