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Least Squared Error

3 explanations from your library.

  1. The Bias–Variance Trade-off, at 0:4510:45

    IIT Madras (NPTEL)

    The Bias–Variance Trade-off

    “We use an error term to perform the regression and in this case it is just a least squared error which is given, which is illustrated in this figure.”

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    Moment · 0:45

    The Bias–Variance Trade-off

    Full session
  2. Underfitting and Overfitting in Practice, at 0:2120:21

    NPTEL: Practical ML with TensorFlow

    Underfitting and Overfitting in Practice

    “So what happens if we look at the learning curves, we observe that the training error and validation error both reduce to begin with.”

    Closest moment in this session: it teaches the idea without listing it as a key concept.

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    Moment · 0:21

    Underfitting and Overfitting in Practice

    Full session
  3. From AdaGrad to RMSProp, at 1:0231:02

    Prof. Prabir Kumar Biswas, IIT Kharagpur

    From AdaGrad to RMSProp

    “nothing, but sum of g t i square of this or let me put it as g tau square instead of g t”

    Closest moment in this session: it teaches the idea without listing it as a key concept.

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    Moment · 1:02

    From AdaGrad to RMSProp

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  • Compare reel

    3 explanations of this concept, from different sessions, spliced into one video with fl_splice. Each clip is labelled with its speaker.

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    …/video/upload/so_44.1,eo_56.3,w_1280,h_720,c_fill/l_video:pravaha:ff809418-9768-43d9-ab11-dd64c8941e4d,fl_spl…/so_19.5,eo_30.8,w_1280,h_720,c_fill/fl_layer_apply/fl_layer_apply,g_north_west,x_40,y_40,so_23.5,eo_40.5/f_auto:video,q_auto/pravaha/56db377d-a244-4533-b61d-2be05387727b.mp4

    so_44.1
    starts at 44.1 s · and 5 more like it
    eo_56.3
    ends at 56.3 s · and 5 more like it
    w_1280
    1280 px wide · and 2 more like it
    h_720
    720 px tall · and 2 more like it
    c_fill
    crops to fill the frame exactly · and 2 more like it
    l_video:pravaha:ff809418-97…
    another video (pravaha/ff809418-9768-43d9-ab11-dd64c8941e4d) as a layer
    fl_splice
    joins the next clip onto the end of this one · and 1 more like it
    fl_layer_apply
    places the layer defined just before · and 4 more like it
    l_video:pravaha:1ba747ae-bd…
    another video (pravaha/1ba747ae-bdb0-43b5-bd11-8a0eda32a02c) as a layer
    l_text:arial_34_bold:1%20%C…
    text layer “1 · IIT Madras (NPTEL)” · and 2 more like it
    co_white
    text colour white · and 2 more like it
    b_rgb:0f766ecc
    background #0f766ecc · and 2 more like it
    g_north_west
    anchored to the top-left corner · and 2 more like it
    x_40
    40 px from the side · and 2 more like it
    y_40
    40 px from the edge · and 2 more like it
    f_auto:video
    best format for each device (e.g. AV1, WebM, MP4, WebP)
    q_auto
    AI-chosen quality: smallest file that still looks right

  • Explanation thumbnail

    The frame at that moment, cropped around the speaker by AI.

    Open ↗

    …/video/upload/so_45.6,c_fill,ar_16:9,w_640,g_auto/f_auto,q_auto/pravaha/56db377d-a244-4533-b61d-2be05387727b.jpg

    so_45.6
    starts at 45.6 s
    c_fill
    crops to fill the frame exactly
    ar_16:9
    aspect ratio 16 : 9
    w_640
    640 px wide
    g_auto
    AI picks the focus (the speaker or slide), not a blind centre crop
    f_auto
    best format for each device (e.g. AV1, WebM, MP4, WebP)
    q_auto
    AI-chosen quality: smallest file that still looks right

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