article thumbnail

Introduction to K-Fold Cross-Validation in R

Analytics Vidhya

The post Introduction to K-Fold Cross-Validation in R appeared first on Analytics Vidhya. ArticleVideo Book This article was published as a part of the Data Science Blogathon. Photo by Myriam Jessier on Unsplash Prerequisites: Basic R programming.

article thumbnail

Identification of Hazardous Areas for Priority Landmine Clearance: AI for Humanitarian Mine Action

ML @ CMU

In close collaboration with the UN and local NGOs, we co-develop an interpretable predictive tool for landmine contamination to identify hazardous clusters under geographic and budget constraints, experimentally reducing false alarms and clearance time by half. Validation results in Colombia. RELand is our interpretable IRM model.

professionals

Sign Up for our Newsletter

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

article thumbnail

Top 8 Machine Learning Algorithms

Data Science Dojo

Technical Approaches: Several techniques can be used to assess row importance, each with its own advantages and limitations: Leave-One-Out (LOO) Cross-Validation: This method retrains the model leaving out each data point one at a time and observes the change in model performance (e.g., accuracy). shirt, pants). shirt, pants).

article thumbnail

Gaussian Mixture Model: A Comprehensive Guide

Pickl AI

It excels in soft clustering, handling overlapping clusters, and modelling diverse cluster shapes. Its ability to model complex, multimodal data distributions makes it invaluable for clustering , density estimation, and pattern recognition tasks. GMM handles overlapping and non-spherical clusters better than K-Means.

article thumbnail

Top 17 trending interview questions for AI Scientists

Data Science Dojo

This is used for tasks like clustering, dimensionality reduction, and anomaly detection. For example, clustering customers based on their purchase history to identify different customer segments. Reinforcement learning: This involves training an agent to make decisions in an environment to maximize a reward signal.

AI 364
article thumbnail

GNTD: reconstructing spatial transcriptomes with graph-guided neural tensor decomposition informed by spatial and functional relations

Flipboard

Extensive experiments on 22 Visium spatial transcriptomics datasets and 3 high-resolution Stereo-seq datasets as well as simulation data demonstrate that GNTD consistently improves the imputation accuracy in cross-validations driven by nonlinear tensor decomposition and incorporation of spatial and functional information, and confirm that the imputed (..)

article thumbnail

Predictive modeling

Dataconomy

They often play a crucial role in clustering and segmenting data, helping businesses identify trends without prior knowledge of the outcome. K-Means K-Means clustering is a technique that segments data into distinct groups based on similarities.