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2019-2-2 09:25:54
昨日阅读2小时,累计阅读812小时。
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2019-2-2 09:35:36
昨天阅读1小时,累计阅读326小时。
昨日继续学习有关于经济学历史方面的书,学习完了重农主义的经济思想,接下来的另一个伟大的经济学家是亚当史密斯,他被称为现代经济学之父,由于英国人喜好足球,所以史密斯从足球运动中领悟经济运作的原理,他认为经济的运作就好像一个足球队,每个人有自己的角色,当一个球员只完全追求自己的利益时,这球队的表现一定是一团糟。史密斯认为如果可以把经济运作比作足球的话,那么社会需要的是人们为了整个社会的利益而工作,它不需要只关心自己的利益的人——如同只在乎个人荣耀的球员一般。比如,面包师要保证他的邻居们在晚餐时有足够的面包食用,而非只顾着赚钱;屠夫需要雇佣新的帮手并非出于工作需要,而是因为朋友们需要工作。如此,人与人之间将充满友善,社会也会实现和谐。他认为当人们出于自身利益采取行动时,社会才会实现良性运转。人们的友善不是必需的,只要满足自身利益,更多人便会受益。足球队和经济之间还有一点重要的不同。足球队需要教练来管理球员,教练具有引领意义的手可以保证球队表现良好。但在经济中没有这样一个角色,没有人会告诉面包师需要烤制多少面包,没有人会告诉酿酒师应该酿造什么类型的酒,史密斯因此提出了现代人的耳知能详的基本经济学术语,”看不见的手”(invisible hand),他认为整个经济似乎被这一只看不见的手的市场机制所引导。史密斯在写国富论时,英国已发生的第一次工业革命,他因此提出分工(division of labor)的理论,他认为当分工系统蔓延至整体经济时,许多商品的成本可以降低,社会最底层的穷人也会从中得到工作中受益,当然消费者也可以受惠。史密斯也对财富的意义做出了崭新的诠释,重农主义者认为它是土地中的收获物,重商主义者认为它是黄金,在史密斯看来,一个国家的财富是所有有用商品的总和——小麦、啤酒、衬衫、书籍——国家经济为人民制造的全部商品。
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2019-2-2 09:46:10
昨日阅读1小时,累计阅读119小时
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2019-2-2 09:54:03
https://mp.weixin.qq.com/s/6O2J1MkEnqvKvoWYoyv6-w

李雪琴:我很痛苦,但我想让别人快乐
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2019-2-2 09:58:13
缺乏“车厘子自由”,只是消费升级下的傲娇型哭穷

https://mp.weixin.qq.com/s/KToc7uYZ4h0aGl0HSXWIzQ
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2019-2-2 10:03:24
充实每一天 发表于 2019-2-2 06:19
【加入充实计划】【了解充实计划】
|新充实挑战|    |每日计划清单|
| 【充实积累】| |【充实挑战项目】| ...
昨日阅读1.5小时 ,累计阅读21.5小时。
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2019-2-2 10:09:45
洞见 | AI芯片初创公司单纯卖芯片还是捆绑算法的商业模式更好?

https://mp.weixin.qq.com/s/bKSwVUE47uETO1JdlEjZqQ
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2019-2-2 10:11:50
充实每一天 发表于 2019-2-2 06:19
【加入充实计划】【了解充实计划】
|新充实挑战|    |每日计划清单|
| 【充实积累】| |【充实挑战项目】| ...
昨日阅读时间1小时,总阅读时间70小时。
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2019-2-2 10:13:24
昨日阅读1小时,累计阅读116小时。阅读《生态文明中的生态原理》,学习有关生态文明的讲话。2002年开始,中国生态文明建设进入科学发展阶段。党的十六届三中全会提出,要坚持以人为本,树立全面、协调、可持续的发展观,促进经济社会和人的全面发展。2005年中央人口资源环境工作座谈会提出了生态文明的概念,指出当前环境工作的重点之一是“完善促进生态建设的法律和政策体系,制定全国生态保护规划,在全社会大力进行生态文明教育”。党的十七大把建设生态文明列入全面建设小康社会的目标,要求建设以资源环境承载力为基础、以自然规律为准则、以可持续发展为目标的资源节约型、环境友好型社会。
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2019-2-2 10:19:03
做低线市场的丝芙兰,时机到了吗

https://mp.weixin.qq.com/s/1V7za5RkaOvoqmpf8KIN0A
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2019-2-2 10:21:29
昨日读0.5小时    累计159小时
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2019-2-2 10:22:18
从不失手的宁浩

https://mp.weixin.qq.com/s/_MfdYQd21N7pOoef5rujzQ
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2019-2-2 10:26:36
昨日阅读1小时, 累计阅读8小时。
非常感谢 赠送的币。
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2019-2-2 10:33:07
充实每一天 发表于 2019-2-2 06:19
【加入充实计划】【了解充实计划】
|新充实挑战|    |每日计划清单|
| 【充实积累】| |【充实挑战项目】| ...
昨日阅读1小时,累计阅读73小时
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2019-2-2 10:36:15
昨日阅读2小时,累计阅读2小时
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2019-2-2 10:51:17
昨天阅读2小时,累计越多越78小时
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2019-2-2 10:56:59
昨日阅读时间1小时,累计阅读时间386小时
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2019-2-2 11:24:44
2019.2.2
昨日阅读4小时,累计阅读1114.5小时。
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2019-2-2 11:54:22
昨日阅读6小时,累计阅读89小时

Hands-On Markov Models with Python


What this book covers:

Chapter 1, Introduction to Markov Process, starts with a discussion of basic probability theory, and then introduces Markov chains. The chapter also talks about the different types of Markov chain classifying based on continuous or discrete states and time intervals.

Chapter 2, Hidden Markov Models, builds on the concept of Markov processes and DBNs tointroduce the concepts of the HMM.

Chapter 3, State Inference – Predicting the States, introduces algorithms that can be used to predict the states of a defined HMM. The chapter introduces the Forward algorithm, the backward algorithm, the forward-backward algorithm, and the Viterbi algorithm.

Chapter 4, Parameter Inference Using Maximum Likelihood, discusses the basics of maximum likelihood learning. The chapter then moves on to applying maximum likelihood learning in the case of HMMs and introduces the Viterbi learning algorithm and Baum-Welch algorithm.

Chapter 5, Parameter Inference Using Bayesian Approach, starts by introducing the basic concepts of Bayesian learning. The chapter then applies these concepts in the case of HMMs and talks about the different approximation methods used for learning using the Bayesian method.

Chapter 6, Time Series Predicting, discusses the application of HMMs in the case of time series data. The chapter takes the example of the variation of stock prices and tries to model it using an HMM.

Chapter 7, Natural Language Processing, discusses the application of HMMs in the field of speech recognition. The chapter discusses two main areas of application: part-of-speech tagging and speech recognition.

Chapter 8, 2D HMM for Image Processing, introduces the concept of 2D HMMs and discusses their application in the field of image processing.

Chapter 9, Markov Decision Process, introduces the basic concepts of reinforcement learning and then talks about Markov decision process and introduces the Bellman equation to solve them.

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2019-2-2 11:57:25
昨日阅读0.5小时,累计阅读21小时。
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2019-2-2 11:59:06
昨日阅读2小时,累计阅读816小时      
挑战第三百三十天   读15页书,完成当日目标
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2019-2-2 12:01:12
2019.2.2
昨日阅读3小时,累计阅读154小时



Country roads take me home, to the place I belong.
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2019-2-2 12:01:17
2019.2.2
昨日阅读3小时,累计阅读154小时

[td]Country roads take me home, to the place I belong.
故乡的路,带我回家吧,回到我期盼已久的归宿。[/td]
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2019-2-2 12:01:59
2019.2.2
昨日阅读3小时,累计阅读154小时


Country roads take me home, to the place I belong.
故乡的路,带我回家吧,回到我期盼已久的归宿。

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2019-2-2 12:21:14
昨天阅读5小时,累计阅读1920小时
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2019-2-2 12:45:15
任正非与柳传志的一次碰面

https://mp.weixin.qq.com/s/OZ_Q1jqQb3ZgT1GKTwjbqw
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2019-2-2 13:03:05
昨日阅读1小时。 总阅读时间104小时
Invest Like a Guru – How to generate higher returns at reduced risk with value investing 2017(Charlie Tian)
https://bbs.pinggu.org/thread-6755810-1-1.html (Page 46-60)
Deep-Value Investing and Its Inherent Problems

阅读到的有价值的内容段落摘录
The idea of deep-value investing is straightforward; it is simply “buying dollar bills for 40 cents,” as explained by Buffett, who in his early years experienced tremendous success practicing deep-value. investing. Deep-value investors try to buy the stock of a company for a price that is discounted from the assessed value of the assets, then wait for the gap between the price and the value to close. Deep-value investors require a minimum gap between the price and the assessed value in order to buy. This minimum gap is called the margin of safety, which is important to protect investors from errors occurring during the assessment of the value.

Benjamin Graham andWalter Schloss were deep-value investors. Graham said in his classic book, The Intelligent Investor, that to avoid errors and ignorance, it is safer to have a diversified portfolio, which may consist of more than a hundred companies. In assessing what the stock is worth, or its value, deep-value investors focus on the balance sheet of the company and have no interest in its operations. There are four ways to estimate the company’s value, depending on how conservatively investors want to go with the valuation.
I highly recommend to read Buffet’s letter to shareholders. Continuous lifelong learning changed me a lot, and I now look at everything in life, even if it is not related to business and investing, from a totally different angle. Of course, I apply what I learned in my own practice of investing research, and in the following chapters I will detail how to apply this knowledge in your investing. I hope to establish the right investing framework so that you can invest in one with a solid foundation and avoid many of the mistakes that investors could have averted, and ultimately achieve long-term success. Benjamin Graham and Walter Schloss were deep-value investors. Graham said in his classic book, The Intelligent Investor, that to avoid errors and ignorance, it is safer to have a diversified portfolio, which may consist of more than a hundred companies.5 In assessing what the stock is worth, or its value, deep-value investors focus on the balance sheet of the company and have no interest in its operations. There are four ways to estimate the company’s value, depending on how conservatively investors want to go with the valuation.
The risk in investing in these companies is that most of them are not well-run and may be continuously losing money. To reduce the risk, GuruFocus added the option that users can filter for companies that have positive operating cash flow. In this way, the companies will
likely be able to maintain their operations without burning through their cash. According to Graham, some of these companies may well become insolvent as economic conditions worsen, so it is important to hold a diversified basket of them. Though the strategy worked well for Graham, these bargains are no longer around for modern value investors seeking to build a diversified portfolio. During the drastic decline of the stock market in 2008, this screener had a long list, but it has gradually dwindled.
This net-assets-bargain portfolio underperformed the indices from the very beginning and would continue to generate deep losses in all the periods following, even as the broad market continued to gain. As we continued to observe the performance of deep-bargain
portfolios, we initially didn’t have many to include in the portfolio with enough margin of safety. If we invested in the ones that appeared, the performance was typically poor and significantly lagged the market. Compared with Graham’s time, finding companies that have
large displaced prices relative to their liquidation values is much easier due to the advances of technology. As a result, the market is getting crowded and not many deep bargains exist. Especially true in recent years, when the interest rate has been low, the valuations for all assets have been lifted to much higher levels, and it therefore becomes difficult to find deep bargains relative to the net assets on a company’s balance sheet. The best time to invest in these deep bargains is when you can find plenty of them, especially when panic and forced selling are prevalent in the market due to a market crash. During such a period, many stocks that deserve higher valuations are also beaten down on prices, especially those with relatively poor business fundamentals. When the overall market valuation is high and everything else is rising, those dropping and appearing in the deep-bargain screener
probably deserved to be traded by low valuations.

阅读到的有价值信息的自我思考点评感想
Buffett coined the term “cigar-butt investing” for the strategy of buying mediocre businesses at prices that are much lower than the companies’ net-asset values. He said the approach is like “a cigar butt found on the street that has only one puff left in it [and] may not offer much of a smoke, but the ‘bargain purchase’ will make that puff all profit.”

Just as Buffett wrote in his 1989 shareholder letter: “Time is the friend of the wonderful business, the enemy of the mediocre.” Because he paid dear prices for buying unpromising businesses, Buffett learned his lessons. He considered his buying of the control of Berkshire Hathaway his biggest mistake, which eventually cost Buffett and his partners $100 billion

Unless you are a liquidator, that kind of approach to buying businesses is foolish. First, the original ‘bargain’ price probably will not turn out to be such a steal after all. In a difficult business, no sooner is one problem solved than another surfaces—never is there just one cockroach in the kitchen. Second, any initial advantage you secure will be quickly eroded by the low return that the business earns
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2019-2-2 13:15:02
昨日阅读1小时,累计阅读387小时
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2019-2-2 13:43:35
充实每一天 发表于 2019-2-2 06:19
【加入充实计划】【了解充实计划】
|新充实挑战|    |每日计划清单|
| 【充实积累】| |【充实挑战项目】| ...
昨日阅读1小时,总阅读770小时
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2019-2-2 13:43:49
昨日阅读1小时,2019年累计阅读35小时。继续分享《薛兆丰经济学讲义》内容:
稀缺的原因
是什么造成了稀缺呢?原因有两个:一是我们想要的东西别人也想要;二是人的需求在不断变化,不断升级。
先说第一个原因,我们想要的东西别人也想要。我们经常有这样的体验,到商店找自己最喜欢的商品时,发现它的价格是最高的。这说明什么?说明我们喜欢的别人很可能也喜欢。
个人感悟:
1、以前理解的稀缺是资源的稀缺,其实不同的场景里面,稀缺的含义是不一样的,一定要有场景,具体场景,分析具体问题;
2、稀缺一定要有人,至少有2个以上,存在资源的争夺,有人的地方就会有稀缺,如果只有一个人,不存在稀缺的概念;
3、人性是贪婪的,我们有了一些,还会追求更多。知足常乐说明什么,心理安慰吗?还是一种生活态度?
第二个原因是人的欲望无限。只有野菜的时候,人们想要馒头;有了馒头,就想要吃肉,想要喝酒;有了酒肉,就想备足了馒头和酒肉到远方捕捞海鲜,还要用馒头、酒肉和鱼虾来供养艺术家拍电影。某登山家在攀登珠峰时借助直升机飞了一段路程,遭到了人们的指责,那是因为人们不乐意稀释登顶的荣誉。这种荣誉是人造的,为了争夺这种人造荣誉,就得花费时间、精力和金钱。可以说,物质越丰富,需求就越新奇。
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