XGBoost是一种基于梯度提升树(Gradient Boosting Tree)算法的机器学习模型,它在解决分类和回归问题上表现出色。在XGBoost中,max_depth参数用于控制每棵树的最大深度,即树的层数。而best max_depth=1表示在使用XGBoost模型时,最佳的max_depth参数值为1。 概念: XGBoost是一种集成学习算法,通过组合多个弱学习器(决策树...
0216-Combination-Sum-III 0217 Contains Duplicate 0218-The-Skyline-Problem 0219-Contains-Duplicate-II 0220-Contains-Duplicate-III 0222-Count-Complete-Tree-Nodes 0224-Basic-Calculator 0225-Implement-Stack-using-Queues 0226-Invert-Binary-Tree 0227-Basic-Calculator-II 0230-Kth-Sm...
BST.java BTree.java Bag.java BellmanFordSP.java BinaryDump.java BinaryIn.java BinaryInsertion.java BinaryOut.java BinarySearch.java BinarySearchST.java BinaryStdIn.java BinaryStdOut.java BinomialMinPQ.java Bipartite.java BipartiteMatching.java BipartiteX.java BlockFilter.java BoruvkaMST.java BoyerMoore.ja...
2255 Tree Recovery、 2084 Game of Connections、 1906 Three powers、 1833 排列、 1850 Code、 1562 Oil Deposits、 1496 Word Index、 1306 Combinations、 1125 Stockbroker Grapevine、 1129 Channel Allocation、 1146 ID Codes、 1095 Trees Made to Order、找规律 2247 Humble Numbers、 2309 BST、 2346 Luc...
sortedArrayToBST.cpp Given a binary tree, generate sum of each vertical column. verticalSum.cpp Given a binary tree and key, node with key exists in tree. Find all the ancestors of the node with key, ancestor here are the nodes which are in straight path from node to root. node_ancest...
0494-Target-Sum 0497-Random-Point-in-Non-overlapping-Rectangles 0498-Diagonal-Traverse 0501-Find-Mode-in-Binary-Search-Tree 0509-Fibonacci-Number 0518-Coin-Change-2 0519-Random-Flip-Matrix 0528-Random-Pick-with-Weight 0530-Minimum-Absolute-Difference-in-BST 0541-Reverse-...