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<title>AdaGrad：逐維度自適應學習率｜AdaGrad: Per-Dimension Adaptive Learning Rates</title>
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<div class="wrap">
<div class="bar"><div class="t">AdaGrad：逐維度自適應學習率<small>AdaGrad: Per-Dimension Adaptive Learning Rates · IDL115 Ch.3 §5.1 · 16:9 互動式資訊圖表</small></div></div>
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<div class="controls" id="controls">
<label>迭代 k <input type="range" id="k" min="0" max="300" step="5" value="60"><output id="kV">60</output></label>
</div>
<div class="hint" id="hint"><b>操作：</b>拖動迭代 k，看累積器階梯長高、有效步長曲線變化。注意左（紅）活躍維度步長急速縮小，右（綠）冷門維度維持高位。η＝0.1、ε＝1e-8 固定。</div>
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