Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [catboost]

CatBoost is an open-source gradient boosting on decision trees library with categorical features support out of the box for Python & R

0
votes
0answers
15 views

Tweak Model or Process to Focus More on Category Values for Regression

I have built a machine learning model using Catboost and I noticed something as I examine the results. When I am looking at the results there is a big fluctuation in the errors between my test set and ...
1
vote
1answer
23 views

Negative Feature Importance Value in CatBoost LossFunctionChange

I am using CatBoost for ranking task. I am using QueryRMSE as my loss function. I notice for some features, the feature importance values are negative and I don't know how to interpret them. It says ...
1
vote
2answers
68 views

AUPRC vs AUROC and updating training set in quasi-classification problem

I have an unbalanced classification problem (95% "0", 5% "1") regarding quality control."0" means "no problem" and "1" means "problem". I'm not predicting real cases one by one, this is, my client ...
2
votes
1answer
169 views

Feature Interaction Strength in Catboost

I was wondering if anyone knew how the feature interaction strength is calculated in the catboost package. The documentation https://catboost.ai/docs/concepts/output-data_feature-analysis_feature-...
1
vote
1answer
87 views

(Low cardinality) categorical features handling in gradient boosting libraries

In some popular gradient boosting libraries (lgb, catboost), they all seems like can handle categorical inputs by just specifying the column names of the categorical features, and pass it into a ...
0
votes
1answer
140 views

Catboost Regression. Function Extrapolation

I'm new at ML and have a problem with catboost. So, I want to predict function value (For example cos | sin etc.). I went over everything but my prediction is always straight line Is it possible and ...
1
vote
1answer
47 views

catboost ignoring my holiday category

I'm experimenting with catboost, predicting electricity demand from temperature, timeofday, dayofweek and if a day is a public holiday or not (and a few other continuous and categorical columns but ...
3
votes
1answer
110 views

Please correct my assumption on how regression trees work

I'm trying to understand how regression trees work, I've been experimenting with catboost and xgboost in python, and I'm getting results which I don't expect, can someone please clarify (and apologies ...
-1
votes
1answer
381 views

What are the key hyperparameters to tune in CatBoost?

I've used XGBoost for a long time but I'm new to CatBoost. If I wanted to run a sklearn RandomizedSearchCV, what are CatBoost's hyperparameters worthwhile including for a binary classification problem?...
4
votes
1answer
505 views

IncToDec Catboost Explained

I am struggling to understand how the overfitting detector with catboost works: https://tech.yandex.com/catboost/doc/dg/concepts/overfitting-detector-docpage/#overfitting-detector I am finding ...