Implicit particle filters for data assimilation generate high-probability samples by representing each particle location as a separate function of a common reference variable. This representation requires that a certain underdetermined equation be solved for each particle and at each time an observation becomes available. We present a new implementation of implicit filters in which we find the ...

We present Releviz, a system that provides a two-dimensional interface for selecting and displaying multivariate data records. Releviz describes a two-component system: A standardized constraint language for expressing search parameters specific to a particular data domain, and for evaluating those search parameters; and a two-dimensional display field of the search results, in linear or radial...