珍重再見，台南

台南一住二十多年，有著許多美好的回憶與追憶。

感恩長榮大學和資管系教職員的幫忙。我這一種直來直往的個性，應該得罪了不少人，感謝大家對我的包容。少子化之下，學校依然堅持正派辦學；院裡的老師認真教學與輔導學生，真的很令人感動 (1)。

日缺400萬顆蛋

 吳靜君 、 林良齊 、 陳夢茹，蛋價回不去了？日缺400萬顆蛋 業者：從來沒缺得這麼嚴重，中國時報，2022年1月27日

國內雞蛋主要的供應來源有大成、卜蜂、福壽等公司。蛋供應短缺，卜蜂分析主因黃小玉等國際原物料價格飆漲3成左右，雞農成本壓力大增，若要維持原有供應量，須淘汰一些產量較少的老母雞、改養小雞，小雞長大到能夠下蛋需要一段時間，以致青黃不接。其次，近期天氣不穩定，造成雞隻死亡，也是雞蛋產量減少主因。

小雞餵養、成長到可以下蛋，需要18周的時間，業者預期，今年上半年雞蛋供應、價格都較為混亂，等一段時間雞蛋供應提升，缺口才會弭平。惟業者認為，原物料價格若維持高檔，雞農的成本壓力仍存在，短期內蛋價要回到過去低價，恐怕很困難。

大成分析，前陣子禽流感造成雞隻死亡，又正逢農曆年雞蛋需求旺季，讓雞蛋原本已供不應求的問題，更加雪上加霜。 

The modern mathematics of deep learning

Julius Berner, Philipp Grohs, Gitta Kutyniok, and Philipp Petersen, The modern mathematics of deep learning, arXiv preprint arXiv:2105.04026, 2021.

We describe the new field of mathematical analysis of deep learning. This field emerged around a list of research questions that were not answered within the classical framework of learning theory. These questions concern: the outstanding generalization power of overparametrized neural networks, the role of depth in deep architectures, the apparent absence of the curse of dimensionality, the surprisingly successful optimization performance despite the non-convexity of the problem, understanding what features are learned, why deep architectures perform exceptionally well in physical problems, and which fine aspects of an architecture affect the behavior of a learning task in which way. We present an overview of modern approaches that yield partial answers to these questions. For selected approaches, we describe the main ideas in more detail.

Pat Hanrahan: “Curiosity and passion determine success”

Shara Tonn, Pat Hanrahan: “Curiosity and passion determine success”, Stanford, April 15, 2021.

Even though he was an inquisitive kid, he was not engaged and not doing well. And then his uncle, a high school student, moved into Hanrahan’s room. One day, he observed his uncle working on an experiment on the planaria flatworm at his desk. Curious, Hanrahan scooted closer and asked him what he was doing. His uncle answered Hanrahan’s questions in a way that he remembers as quite gentle, and from then on, his uncle would teach him everything that he was learning. His uncle’s work was challenging, and his gentle manner encouraged Hanrahan to ask more questions. That relationship cultivated in him a practice of learning outside the classroom and letting his curiosity guide him toward people and experiences that excited and challenged him. Now, as the Canon Professor in the School of Engineering, with appointments in the departments of Computer Science and Electrical Engineering, Hanrahan passes that on, encouraging his students to be curious and take charge of their own learning.

值得你拼命的公司？(2/2)

值得你拼命的公司？(1/2) 連 Google 都不值得

如何照顧好自己的健康和事業 (註 1)

人生有幾個面向，例如事 (志) 業、家庭、健康、興趣、親友等等；其中的身體健康是一切的基礎 (註 2)。西醫很科學，但只是治標地醫病。睡眠、飲食、心境、和運動則是健康的四大法則 (註 3)。