نتایج جستجو برای: projections
تعداد نتایج: 52979 فیلتر نتایج به سال:
This paper describes three techniques for reachability analysis for systems modeled by ordinary diierential equations (ODEs). First, linear models with regions modeled by convex polyhedra are considered, and an exact algorithm is presented. Next, non-convex polyhedra are considered , and techniques are presented for representing a polyhedron by its projection onto two-dimensional subspaces. Thi...
Abstract We1 propose methods for improving both the accuracy and efficiency of random projections, the popular dimension reduction technique in machine learning and data mining, particularly useful for estimating pairwise distances. Let A ∈ Rn×D be our n points in D dimensions. This method multiplies A by a random matrix R ∈ RD×k, reducing the D dimensions down to just k . R typically consists ...
Linear projections are one of the most common approaches to visualize high-dimensional data. Since the space of possible projections is large, existing systems usually select a small set of interesting projections by ranking a large set of candidate projections based on a chosen quality measure. However, while highly ranked projections can be informative, some lower ranked ones could offer impo...
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