Machine Learning Fundamentals: Sensitivity and Specificity




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In this StatQuest we talk about Sensitivity and Specificity – to key concepts for evaluating Machine Learning methods. These make it easier to choose which method is best for your data.

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If you’re not already familiar with the Confusion Matrix, check out the Quest: https://youtu.be/Kdsp6soqA7o

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Comment List

  • StatQuest with Josh Starmer
    January 5, 2021

    NOTE: At 7:28 my wording could be improved. The True Negatives for Troll 2 are the people who were correctly predicted to not like Troll 2.

  • StatQuest with Josh Starmer
    January 5, 2021

    You may want to add terminology alert for Recall and Precision. May I get your email address ?

  • StatQuest with Josh Starmer
    January 5, 2021

    You are better than all of my undergrad and grad professors 😀

  • StatQuest with Josh Starmer
    January 5, 2021

    As to your wording, I would exchange your "predict" with "diagnose", such as "patients DIAGNOSED with heart disease". You may say that a diagnosis is issued by a medical doctor, while a prediction is issued by a statistical/ML model. BAM! – hart to argue against.

  • StatQuest with Josh Starmer
    January 5, 2021

    BAMM!! this guy is a legend.

  • StatQuest with Josh Starmer
    January 5, 2021

    Finally a clear explanation of sensitivity and specificity, thanks Josh

  • StatQuest with Josh Starmer
    January 5, 2021

    Josh Starmer, You rock!

  • StatQuest with Josh Starmer
    January 5, 2021

    I came for the Machine Learning and stayed for the music. If it was more important to identify positives no matter what the movie was would we need to take an average of all the sensitivity calculations for each method to find one with highest sensitivity, but if we were only interested in identifying people who liked one of the particular movies would we just focus on sensitivity reading for that movie?

  • StatQuest with Josh Starmer
    January 5, 2021

    Why didn't I find this channel before?? It's a gem!!

  • StatQuest with Josh Starmer
    January 5, 2021

    This is my go to channel for any stats related knowledge. Thanks Josh for this exceptional channel👏👏

  • StatQuest with Josh Starmer
    January 5, 2021

    BAM! That's an amazing video. I completely get sensitivity vs specificity now. Thanks!

  • StatQuest with Josh Starmer
    January 5, 2021

    Baaaaaaaaam 💥💥

  • StatQuest with Josh Starmer
    January 5, 2021

    used to imitate the sound of a hard blow or to convey something happening abruptly.

  • StatQuest with Josh Starmer
    January 5, 2021

    Sir i hava a quest related to data science field…. I have no mentor….so tell me there is so much automation in data science field like library for EDA … I have to learn EDA step by step or use library directly

  • StatQuest with Josh Starmer
    January 5, 2021

    Your vids are awesome!, thank you

  • StatQuest with Josh Starmer
    January 5, 2021

    Amazing class. Way to go! Salute from Brazil.

  • StatQuest with Josh Starmer
    January 5, 2021

    BAM4!

  • StatQuest with Josh Starmer
    January 5, 2021

    Hi, is there any difference in results if we change rows to Actual and columns to predicted? Great video btw!!!

  • StatQuest with Josh Starmer
    January 5, 2021

    Even though you explain it clear and simple, keeping track of the rows and columns when calculating sensitivity and specificity is still confusing.

  • StatQuest with Josh Starmer
    January 5, 2021

    Watched confusion matrix statquest, and I forgot to like. So I paused in the middle of this one, went back and liked then came back. Because u deserve more than just likes. But for now that's all I have to offer. God bless u and thanks

  • StatQuest with Josh Starmer
    January 5, 2021

    Can specificity be zero at all ?

  • StatQuest with Josh Starmer
    January 5, 2021

    Hi Josh, do you think it would add value to add metrics like Precision, Recall and Accuracy here, since we are talking about Confusion Matrix? I know Sensitivity and Recall are the same, just thought we can mention the term as well.

  • StatQuest with Josh Starmer
    January 5, 2021

    I am really thirsty and watching statquest! Thank you sire.

  • StatQuest with Josh Starmer
    January 5, 2021

    Hi Josh, do you have a video about lift chart? Can't find it in your channel 🙁

  • StatQuest with Josh Starmer
    January 5, 2021

    well done!

  • StatQuest with Josh Starmer
    January 5, 2021

    Are your songs on spotify

  • StatQuest with Josh Starmer
    January 5, 2021

    Thank you for the video, it's helpful. Can you please clarify the True Negatives ( 7:43). Why would we include 77 and 92?

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