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(1)</image:title></image:image><lastmod>2025-03-10T07:26:44+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://parameterfree.com/2019/10/03/online-mirror-descent-iii-examples-and-learning-with-expert-advice/</loc><image:image><image:loc>https://parameterfree.com/wp-content/uploads/2019/10/lea.png</image:loc><image:title>lea</image:title></image:image><image:image><image:loc>https://parameterfree.com/wp-content/uploads/2019/10/eg.png</image:loc><image:title>eg</image:title></image:image><lastmod>2024-02-04T08:14:31+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://parameterfree.com/2019/09/25/lower-bounds-for-online-linear-optimization/</loc><lastmod>2023-10-23T06:50:40+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://parameterfree.com/about-me/</loc><image:image><image:loc>https://parameterfree.com/wp-content/uploads/2018/04/foto_colori.png</image:loc><image:title>foto_colori</image:title></image:image><lastmod>2023-08-31T05:09:18+00:00</lastmod><changefreq>weekly</changefreq><priority>0.6</priority></url><url><loc>https://parameterfree.com/2023/06/19/adapting-to-smoothness-with-normalized-gradients/</loc><image:image><image:loc>https://parameterfree.com/wp-content/uploads/2023/06/meme.jpg</image:loc><image:title>meme</image:title></image:image><image:image><image:loc>https://parameterfree.com/wp-content/uploads/2023/06/nogd2.png</image:loc><image:title>nogd2</image:title></image:image><image:image><image:loc>https://parameterfree.com/wp-content/uploads/2023/06/screenshot_20230619_092627.png</image:loc><image:title>Screenshot_20230619_092627</image:title></image:image><lastmod>2023-08-15T18:17:48+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://parameterfree.com/icml-tutorial/</loc><lastmod>2023-06-06T21:58:28+00:00</lastmod><changefreq>weekly</changefreq><priority>0.6</priority></url><url><loc>https://parameterfree.com/2022/11/07/saddle-point-optimization-with-optimism/</loc><image:image><image:loc>https://parameterfree.com/wp-content/uploads/2022/11/prescient_omd.png</image:loc><image:title>prescient_omd</image:title></image:image><image:image><image:loc>https://parameterfree.com/wp-content/uploads/2022/11/saddle_point_omd.png</image:loc><image:title>saddle_point_omd</image:title></image:image><image:image><image:loc>https://parameterfree.com/wp-content/uploads/2022/11/saddle_point_oftrl.png</image:loc><image:title>saddle_point_oftrl</image:title></image:image><lastmod>2022-11-17T22:29:17+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://parameterfree.com/2022/09/19/a-simple-proof-for-optimistic-omd/</loc><image:image><image:loc>https://parameterfree.com/wp-content/uploads/2022/09/optimistic_omd.png</image:loc><image:title>optimistic_omd</image:title><image:caption>Optimistic OMD</image:caption></image:image><lastmod>2022-10-19T18:36:29+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://parameterfree.com/2021/02/14/perceptron-is-not-sgd-a-better-interpretation-through-pseudogradients/</loc><image:image><image:loc>https://parameterfree.com/wp-content/uploads/2021/02/perceptron_2-2.png</image:loc><image:title>perceptron_2</image:title></image:image><image:image><image:loc>https://parameterfree.com/wp-content/uploads/2021/02/perceptron_2-1.png</image:loc><image:title>perceptron_2</image:title></image:image><image:image><image:loc>https://parameterfree.com/wp-content/uploads/2021/02/perceptron_2.png</image:loc><image:title>perceptron_2</image:title></image:image><lastmod>2022-09-09T15:22:36+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://parameterfree.com/2022/09/07/saddle-points-game-theory-and-boosting/</loc><image:image><image:loc>https://parameterfree.com/wp-content/uploads/2022/09/saddle_point.png</image:loc><image:title>saddle_point</image:title><image:caption>The saddle point in the Matching Pennies game.</image:caption></image:image><image:image><image:loc>https://parameterfree.com/wp-content/uploads/2022/09/boosting_oco.png</image:loc><image:title>boosting_oco</image:title></image:image><lastmod>2022-10-05T17:42:59+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://parameterfree.com/2021/12/02/saddle-point-problems-and-oco/</loc><image:image><image:loc>https://parameterfree.com/wp-content/uploads/2021/12/no_saddle_point.png</image:loc><image:title>no_saddle_point</image:title></image:image><image:image><image:loc>https://parameterfree.com/wp-content/uploads/2021/12/algo_spp_1.png</image:loc><image:title>algo_spp_1</image:title></image:image><image:image><image:loc>https://parameterfree.com/wp-content/uploads/2021/12/algo_spp_4.png</image:loc><image:title>algo_spp_4</image:title></image:image><image:image><image:loc>https://parameterfree.com/wp-content/uploads/2021/12/algo_spp_3.png</image:loc><image:title>algo_spp_3</image:title></image:image><image:image><image:loc>https://parameterfree.com/wp-content/uploads/2021/12/algo_spp_2-1.png</image:loc><image:title>algo_spp_2</image:title></image:image><image:image><image:loc>https://parameterfree.com/wp-content/uploads/2021/12/algo_spp_2.png</image:loc><image:title>algo_spp_2</image:title></image:image><lastmod>2022-09-08T21:38:13+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://parameterfree.com/lecture-notes-on-online-learning/</loc><lastmod>2022-07-24T20:49:35+00:00</lastmod><changefreq>weekly</changefreq><priority>0.6</priority></url><url><loc>https://parameterfree.com/2021/06/12/implicit-passive-aggressive-and-aprox-updates/</loc><lastmod>2022-02-15T20:48:15+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://parameterfree.com/2019/09/17/more-online-to-batch-examples-and-strong-convexity/</loc><image:image><image:loc>https://parameterfree.com/wp-content/uploads/2019/09/strongly_convex.png</image:loc><image:title>strongly_convex</image:title></image:image><lastmod>2021-09-06T23:24:08+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://parameterfree.com/2019/09/20/adaptive-algorithms-l-bounds-and-adagrad/</loc><image:image><image:loc>https://parameterfree.com/wp-content/uploads/2019/09/adagrad-1.png</image:loc><image:title>adagrad</image:title></image:image><image:image><image:loc>https://parameterfree.com/wp-content/uploads/2019/09/adagrad.png</image:loc><image:title>adagrad</image:title></image:image><lastmod>2022-12-26T02:10:49+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://parameterfree.com/2019/10/17/follow-the-regularized-leader-iii-more-logarithmic-bounds/</loc><image:image><image:loc>https://parameterfree.com/wp-content/uploads/2019/10/ons-1.png</image:loc><image:title>ons</image:title></image:image><image:image><image:loc>https://parameterfree.com/wp-content/uploads/2019/10/vaw.png</image:loc><image:title>vaw</image:title></image:image><image:image><image:loc>https://parameterfree.com/wp-content/uploads/2019/10/ons.png</image:loc><image:title>ons</image:title></image:image><lastmod>2023-09-04T14:41:22+00:00</lastmod><changefreq>monthly</changefreq></url><url><loc>https://parameterfree.com/2020/10/05/almost-sure-convergence-of-sgd-on-smooth-non-convex-functions/</loc><image:image><image:loc>https://parameterfree.com/wp-content/uploads/2020/10/sgd_on_sin.png</image:loc><image:title>sgd_on_sin</image:title><image:caption>GD vs SGD to minimize $latex {F(x)=\sin(x)}&amp;fg=000000$. In SGD the derivative is corrupted by additive Gaussian 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