Glossary

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Chernoff Faces(also: Chernoff's Faces)

A visualisation technique introduced by Herman Chernoff in 1973 that represents multivariate data by mapping each data variable to a facial feature — eye size, eye spacing, nose length, mouth curvature, face shape, and so on — producing one cartoon face per data sample. The idea…

Cone Tree(also: Cone Trees, Cone Tree Visualization)

A 3D or 2D information visualization technique for displaying hierarchical data structures, where child nodes are arranged in a cone or fan shape around their parent node. When a user selects a child, the parent shrinks into the background and the selected item's children expand…

Mind Map(also: Mind Mapping, Concept Map)

A diagram that organises information radially around a central topic, with branches and sub-branches showing related ideas, supporting details, and their connections. Mind maps were popularised in the 1970s by Tony Buzan as a general study and note-taking technique. In…

Multivariate Data(also: Multivariate Dataset, High-Dimensional Data)

Data in which each observation or sample has more than two measured variables (dimensions). Analysing multivariate data is a core task in statistics, science, and business intelligence, but presenting it accessibly is difficult: traditional charts effectively show two or three…

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