All Questions
5 questions
2
votes
1
answer
431
views
Can XGBoost do classification based on linear combinations?
Suppose we have a data set $\mathcal{D}$ consisting of $n_C$ continuous features $\boldsymbol{X}_1, \boldsymbol{X}_2, \dots, \boldsymbol{X}_{n_C}$ and we wish to target a discrete variable $\...
- 95
0
votes
2
answers
141
views
Decision tree without the "tree"
I would like to construct something like a decision tree. However, instead of using "recursive partitioning" to build a tree, I would like to find an optimal set of "global" splits.
For example, in a ...
- 191
0
votes
2
answers
471
views
classification tree with rpart()
I'm using the rpart() to build a classification tree using R. I have no experience in this topic... Anyway, I started with the full model, and then I used the varImp() from "caret" to drop some ...
- 1
0
votes
0
answers
83
views
What are the problems of these decision trees outputs?
I have a report that using two structures of decision trees for a multi-class (4-classes) classification problem with 7 inputs. First output is for ...
- 4,271
3
votes
1
answer
2k
views
Hierarchical classification where leaf nodes in a tree are at no particular level
I have a set of hierarchical classes (ex. "object/architecture/building/residential building/house/farmhouse"), and I build a tree where each node is a classifier. However, the appropriate class for a ...
