334 research outputs found
Predicting an observer's task using multi-fixation pattern analysis
Since Yarbus's seminal work in 1965, vision scientists have argued that people's eye movement patterns differ depending upon their task. This suggests that we may be able to infer a person's task (or mental state) from their eye movements alone. Recently, this was attempted by Greene et al. [2012] in a Yarbus-like replication study; however, they were unable to successfully predict the task given to their observer. We reanalyze their data, and show that by using more powerful algorithms it is possible to predict the observer's task. We also used our algorithms to infer the image being viewed by an observer and their identity. More generally, we show how off-the-shelf algorithms from machine learning can be used to make inferences from an observer's eye movements, using an approach we call Multi-Fixation Pattern Analysis (MFPA)
Predicting an observer's task using multi-fixation pattern analysis
Since Yarbus's seminal work in 1965, vision scientists have argued that people's eye movement patterns differ depending upon their task. This suggests that we may be able to infer a person's task (or mental state) from their eye movements alone. Recently, this was attempted by Greene et al. [2012] in a Yarbus-like replication study; however, they were unable to successfully predict the task given to their observer. We reanalyze their data, and show that by using more powerful algorithms it is possible to predict the observer's task. We also used our algorithms to infer the image being viewed by an observer and their identity. More generally, we show how off-the-shelf algorithms from machine learning can be used to make inferences from an observer's eye movements, using an approach we call Multi-Fixation Pattern Analysis (MFPA)
Circumstellar disks around Herbig Ae/Be stars: polarization, outflows and binary orbits
The geometrical relationship between the distribution of circumstellar
matter, observed optical linear polarization, outflows and binary orbital plane
in Herbig Ae/Be stars is investigated. Optical linear polarization measurements
carried out for a number of Herbig Ae/Be stars that are either known to be in
binary systems and/or have bipolar jets are presented in this paper. Available
information on the position angles of polarization, outflows and binary
companions for Herbig Ae/Be stars is compiled and analysed for any possible
correlations. In of the sources the outflow position angle is
within of being parallel or perpendicular to the polarization
position angle. In of the sources the binary position angle is
within of being parallel or perpendicular to the polarization
position angle. Out of 15 sources with bipolar outflows, 10 sources have the
binary position angle within of being perpendicular to the outflow
position angle. These results favour those binary formation mechanisms in which
the binary components and the disks around individual stars or circumbinary
disks are coplanar.Comment: 11 pages, 2 figures, accepted by Astronomy & Astrophysic
Empirical Legal Studies Before 1940: A Bibliographic Essay
The modern empirical legal studies movement has well-known antecedents in the law and society and law and economics traditions of the latter half of the 20th century. Less well known is the body of empirical research on legal phenomena from the period prior to World War II. This paper is an extensive bibliographic essay that surveys the English language empirical legal research from approximately 1940 and earlier. The essay is arranged around the themes in the research: criminal justice, civil justice (general studies of civil litigation, auto accident litigation and compensation, divorce, small claims, jurisdiction and procedure, civil juries), debt and bankruptcy, banking, appellate courts, legal needs, legal profession (including legal education), and judicial staffing and selection. Accompanying the essay is an extensive bibliography of research articles, books, and reports
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