1,624 research outputs found
Online open neuroimaging mass meta-analysis
We describe a system for meta-analysis where a wiki stores numerical data in
a simple format and a web service performs the numerical computation.
We initially apply the system on multiple meta-analyses of structural
neuroimaging data results. The described system allows for mass meta-analysis,
e.g., meta-analysis across multiple brain regions and multiple mental
disorders.Comment: 5 pages, 4 figures SePublica 2012, ESWC 2012 Workshop, 28 May 2012,
Heraklion, Greec
Sparse Coding for Event Tracking and Image Retrieval
Comparing regions of images is a fundamental task in both similarity based object tracking as well as retrieval of images from image datasets, where an exemplar image is used as the query. In this thesis, we focus on the task of creating a method of comparison for images produced by NASA’s Solar Dynamic Observatory mission. This mission has been in operation for several years and produces almost 700 Gigabytes of data per day from the Atmospheric Imaging Assembly instrument alone. This has created a massive repository of high-quality solar images to analyze and categorize. To this end, we are concerned with the creation of image region descriptors that are selective enough to differentiate between highly similar images yet compact enough to be compared in an efficient manner, while also being indexable with current indexing technology. We produce such descriptors by pooling sparse coding vectors produced by spanning learned basis dictionaries. Various pooled vectors are used to describe regions of images in event tracking, entire image descriptors for image comparison in content based image retrieval, and as region descriptors to be used in a content based image retrieval system on the SDO AIA image pipeline
A study of the reading references in five senior high school American history textbooks
Thesis (Ed.M.)--Boston University This item was digitized by the Internet Archive
Has analytical flexibility increased in imaging studies of bipolar disorder and major depression?
There has been extensive discussion of problems of reproducibility of research. Analytical flexibility may contribute to this, by increasing the likelihood that a reported finding represents a chance result. We explored whether analytical flexibility has increased over time, using human imaging studies of bipolar disorder and major depression. Our results indicate that the number of measures collected per study has increased over time for studies of bipolar disorder, but not for studies of major depression.</jats:p
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