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040000 tree d954cb42d698040902f30646111413c3e7cb28df	fitting
040000 tree 0e4cf59fab26b745104ba58e40893d4dcd5ba7b7	geometry
040000 tree c85b8cd541aec0aaa3916e1f8e987f6213b1feeb	linear
040000 tree 60221b65a1cf47c3c7c039887c6db99ff9229dc5	optim
040000 tree 8fd60ea3d3fe75fde1932400bf6a40484d2ba5be	optimization
040000 tree 2db6d5c0b85d5631bff914a05029310ec0f77fbe	random
040000 tree c3b0ece2a5af7c549ad268b3771fcb9a66ccbf7d	stat