愿博主一切安好，不忘初心！
讀博三個(gè)月，我被PUA導(dǎo)師罵哭了！事情是這樣的，昨天晚上我給導(dǎo)師發(fā)了條微信，表明學(xué)院要求每個(gè)學(xué)生參加寒假社會(huì)實(shí)踐，我計(jì)劃要去某某單位實(shí)踐，請(qǐng)老師批準(zhǔn)。 然后導(dǎo)師就讓我立刻馬上去實(shí)驗(yàn)室見他。然后我就一臉懵逼地去...
IP屬地：西約塔蘭
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@范二小姐姐 抱歉，現(xiàn)在才回復(fù)。。。我似乎找到了人生的解藥，“存在先于本質(zhì)” - 讓-保羅·薩特
為什么會(huì)生活沒激情，活著沒意思？
張博士跳樓自殺了！這個(gè)消息如一聲巨雷在朋友圈炸了！ 所有人都認(rèn)為，張簡是一個(gè)非常有上進(jìn)心的青年才??！年紀(jì)輕輕拿到了某重點(diǎn)高校博士學(xué)位，順利進(jìn)入一家高薪央企工作，一項(xiàng)項(xiàng)成果獎(jiǎng)，...
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Prediction interval vs. Confidence interval vs credible interval
Prediction interval Prediction intervals are always wider than confidence intervals, be...
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Conjugate prior
In general, if the prior distribution belongs to a family , the data have a distributio...
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Chalmers Course: Statistical learning for big data
Course literature: Most of the course content can be found in Hastie T, Tibshirani R, a...
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Baseline vs. benchmark in machine learning
A baseline is usually a lower complexity model. New research leads tend to compare agai...
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Probability distribution function vs. Probability density function
Combining what wikipedia and my own interpretation, probability distribution function c...
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數(shù)據(jù)標(biāo)準(zhǔn)化(Normalization)四種方法
min-max法（規(guī)范化方法）這種歸一化方法比較適用在數(shù)值比較集中的情況。但是，如果max和min不穩(wěn)定，很容易使得歸一化結(jié)果不穩(wěn)定，使得后續(xù)使用效果也不穩(wěn)定，實(shí)際使用中可以...
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Chalmers Course: Linear and integer optimization with applicationsCourse literature: Optimization (English) (Links to an external site.)[https://www.stud...
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Machine Learning - Stanford UniversityCourse syllabus Week 1: Introduction Model and Cost Function Gradient Descent Linear re...
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Frequentist vs. Bayesian (Maximum Likelihood Estimation vs. Maximum A Posteriori )
- Quantity of interest or parameter of a model Frequentist: is described as unknown an...
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多元函數(shù)的泰勒展開式
之前一直只是用一元函數(shù)的泰勒展開，后來發(fā)現(xiàn)原來泰勒展開還有多元。列一列以供以后參考： 一元函數(shù)在點(diǎn)處的泰勒展開式為： 二元函數(shù)在點(diǎn)處的泰勒展開式為: 多元函數(shù)在點(diǎn)處的泰勒展開...
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Scatter plot with categories in column
Source: https://stackoverflow.com/questions/21654635/scatter-plots-in-pandas-pyplot-how...
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Understanding and visualizing data with Python
Course syllabus Week 1 - Introduction to dataWeek 2 - Univariate dataWeek 3 - Multivari...
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再看《我不是藥神》想給差評(píng)，關(guān)于生死，我有一點(diǎn)不同的看法
今天又和朋友討論起了《我不是藥神》這部電影，我說我不喜歡。 朋友很吃驚，豆瓣9.0，里程碑式的國產(chǎn)電影，應(yīng)該人人都喜歡才對(duì)。 但人就是這么奇怪，每個(gè)人都有他的思想，有他的動(dòng)機(jī)...
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SQL for Data ScienceCourse syllabus Week 1 - Getting started and Selecting & Retrieving Data with SQLWeek 2...
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Positive Psychology
Lesson 1: Ten positive emotions (frequency of people daily experience): Joy (playful) G...
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Applied Machine Learning in Python
Module 1: Fundamentals of Machine Learning Machine learning brings together statistics,...