“Identifying patterns in the world requires noticing not only unusual occurrences, but also unusual absences.” – inform professor Anne S. Hsu and colleagues Andy Horng, Thomas L. Griffiths and Nick Chater in a new paper for the journal Cognitive Science. “We examined how people learn from absences, manipulating the extent to which an absence is […]
Tag: sparse
Maybe no data? Maybe no problem? (statistics)
“Applied statisticians are often confronted with statistical inference problems dealing with situations in which there appear to be no data, or data of only limited usefulness.” An example of ‘Sparsity‘ – in which statisticians find themselves having to deal with datasets which are primarily populated with zeros. That’s to say, they’re ‘sparse’. In such cases, […]