uwot - The Uniform Manifold Approximation and Projection (UMAP) Method for Dimensionality Reduction

An implementation of the Uniform Manifold Approximation and Projection dimensionality reduction by McInnes et al. (2018) <doi:10.48550/arXiv.1802.03426>. It also provides means to transform new data and to carry out supervised dimensionality reduction. An implementation of the related LargeVis method of Tang et al. (2016) <doi:10.48550/arXiv.1602.00370> is also provided. This is a complete re-implementation in R (and C++, via the 'Rcpp' package): no Python installation is required. See the uwot website (<https://github.com/jlmelville/uwot>) for more documentation and examples.

Last updated 3 months ago

dimensionality-reductionumap

15.79 score 321 stars 134 packages 2.1k scripts 43k downloads

RcppHNSW - 'Rcpp' Bindings for 'hnswlib', a Library for Approximate Nearest Neighbors

'Hnswlib' is a C++ library for Approximate Nearest Neighbors. This package provides a minimal R interface by relying on the 'Rcpp' package. See <https://github.com/nmslib/hnswlib> for more on 'hnswlib'. 'hnswlib' is released under Version 2.0 of the Apache License.

Last updated 6 months ago

approximate-nearest-neighbor-searchhnswk-nearest-neighborsknnnearest-neighbor-searchnmslibrcpp

9.96 score 35 stars 71 packages 60 scripts 26k downloads

rnndescent - Nearest Neighbor Descent Method for Approximate Nearest Neighbors

The Nearest Neighbor Descent method for finding approximate nearest neighbors by Dong and co-workers (2010) <doi:10.1145/1963405.1963487>. Based on the 'Python' package 'PyNNDescent' <https://github.com/lmcinnes/pynndescent>.

Last updated 4 months ago

approximate-nearest-neighbor-search

7.68 score 11 stars 73 scripts 331 downloads

mize - Unconstrained Numerical Optimization Algorithms

Optimization algorithms implemented in R, including conjugate gradient (CG), Broyden-Fletcher-Goldfarb-Shanno (BFGS) and the limited memory BFGS (L-BFGS) methods. Most internal parameters can be set through the call interface. The solvers hold up quite well for higher-dimensional problems.

Last updated 3 years ago

conjugate-gradientl-bfgsnumerical-optimization

7.02 score 10 stars 7 packages 25 scripts 521 downloads