Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Rapidly Varying Flow01:24

Rapidly Varying Flow

707
Rapidly varying flow (RVF) in open channels is characterized by abrupt changes in flow depth over a short distance, with the rate of depth change relative to distance often approaching unity. These flows are inherently complex due to their transient and multi-dimensional nature, making exact analysis difficult. However, approximate solutions using simplified models provide valuable insights into their behavior.Key Features of Rapidly Varying FlowRVF is commonly observed in scenarios involving...
707
Genetic Drift03:33

Genetic Drift

45.4K
Natural selection—probably the most well-known evolutionary mechanism—increases the prevalence of traits that enhance survival and reproduction. However, evolution does not merely propagate favorable traits, nor does it always benefit populations.
45.4K
Gradually Varying Flow01:29

Gradually Varying Flow

655
Gradually varying flow (GVF) in open channels describes situations where water depth changes slowly along the channel due to factors like non-uniform bed slope, channel shape variations, or obstructions. This flow type occurs when the depth adjusts gradually to balance gravitational forces, shear forces, and energy requirements, resulting in a low rate of depth change.Characteristics of Gradually Varying FlowGVF is commonly observed in natural streams, rivers, and canals, where flow depth...
655
Survival Tree01:19

Survival Tree

500
Survival trees are a non-parametric method used in survival analysis to model the relationship between a set of covariates and the time until an event of interest occurs, often referred to as the "time-to-event" or "survival time." This method is particularly useful when dealing with censored data, where the event has not occurred for some individuals by the end of the study period, or when the exact time of the event is unknown.
 Building a Survival Tree
Constructing a...
500
Instinctive Drift01:05

Instinctive Drift

1.3K
Instinctive drift refers to the tendency of animals to revert to their innate behaviors despite repeated reinforcement. Breland and Breland demonstrated this concept in an experiment with a raccoon. The raccoon was trained to pick up two coins and place them in a container in exchange for food. Initially, the raccoon learned to associate the coins with food, making them a conditioned stimulus or a substitute for food. However, over time, the raccoon became less willing to put the coins into the...
1.3K
Uniform Depth Channel Flow: Problem Solving01:18

Uniform Depth Channel Flow: Problem Solving

696
To calculate the flow rate for a trapezoidal channel, first, identify the bottom width, side slope, and flow depth of the channel. The cross-sectional area (A) corresponding to the depth of flow (y), channel bottom width (B), and side slope (θ) is determined by:Next, calculate the wetted perimeter, which includes the bottom width and the sloped side lengths in contact with the water. Using the values of the cross-sectional area and the wetted perimeter, determine the hydraulic radius by...
696

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Epidemiology of Suicidal Behavior in Malaga (Spain): An Approach From the Prehospital Emergency Service.

Frontiers in psychiatry·2019
Same author

DB4US: A Decision Support System for Laboratory Information Management.

Interactive journal of medical research·2013
Same author

A combined neural network and decision trees model for prognosis of breast cancer relapse.

Artificial intelligence in medicine·2002
See all related articles

Related Experiment Videos

Fast adapting ensemble: a new algorithm for mining data streams with concept drift.

Agustín Ortíz Díaz1, José del Campo-Ávila2, Gonzalo Ramos-Jiménez2

  • 1Department of Computer Science, University of Granma, 85100 Granma, Cuba.

Thescientificworldjournal
|April 17, 2015
PubMed
Summary
This summary is machine-generated.

This study introduces the Fast Adapting Ensemble (FAE), an algorithm designed for data mining that quickly adapts to changing data concepts, even recurring ones. FAE demonstrates improved accuracy and runtime in handling concept drift in large data streams.

Related Experiment Videos

Area of Science:

  • Data Mining
  • Machine Learning

Background:

  • Handling concept drift in large data streams is a significant challenge.
  • Recurring concepts (those that disappear and reappear) pose additional difficulties for algorithms.

Purpose of the Study:

  • To present a novel algorithm, Fast Adapting Ensemble (FAE), for effectively treating concept drift in data streams.
  • To specifically address the challenge of recurring concepts in machine learning.

Main Methods:

  • The Fast Adapting Ensemble (FAE) processes data in blocks, enabling rapid adaptation without waiting for complete batches.
  • FAE integrates a drift detector for abrupt concept drift and maintains inactive classifiers for recurring concepts.

Main Results:

  • The proposed FAE algorithm shows promising results in terms of accuracy and runtime.
  • FAE effectively handles various types of concept drifts, including abrupt, gradual, and recurring ones.

Conclusions:

  • FAE offers a fast and effective solution for concept drift in data mining.
  • The algorithm's ability to manage recurring concepts makes it suitable for dynamic data environments.