迅雷研究笔记

迅雷平台游戏业务的用户粘性

  1. 平均用户游戏活跃时长为1-6个月

迅雷现金流问题

从2013年到2016年,迅雷营收从1.18亿美元上升到1.56亿美元,与此同时,经营现金流和自由现金流均出现大幅下跌,分别从8千5百万美元和4千2百万美元下降到4千2百万美元和2百万美元。

2017年底,迅雷的账面现金仅为23万美元。正常么

Telegram Notes

Bot Api

  1. No "join group" api provided
  2. Group admin can set whether to allow entrance of bot account

Cash Flow

  1. CPC ad link is a potentional revenue source

About Immigration

The Cause of Immigration

The life quality of western countries is far better than that of China in terms of economical, environmental and social conditions. I found myself increasingly believe in western cultures and values and that is the primary driving force of my immigration thoughts. I need to improve my language skill as well as professional experiences to get ready for the oppertunity. Meanwhile, I need to take it very carefully to examine this thought to confirm it is a good fit for me and my family.

I need a carefully planning to merge my immigration effort with the long-term paradigm shift of my family earning, that is, to shift from work-based earning to asset-based earning. (Asset here is something that can generate revenue without extra mental/physical labor)

Zipline Project

Zipline Data Storage Path

/Users/xxx/.zipline/data/quantopian-quandl

Zipline benchmark data download bug:

Issue: https://github.com/quantopian/zipline/issues/1965

Solution: https://github.com/pydata/pandas-datareader/commit/7d8803d9707b9bb710982397ad8984773295722b#comments

English Vocabularies

  1. progdigious
    very impressive
  2. Earnest
    very serious mentally
  3. Aloof
    keep distance from things
  4. Rupture
    break relationship with
  5. Demeanor
    the appearance to someone, the attitude to someone
  6. Shephered
    To guide
  7. Ostensible
    intended to display but not true
  8. Articulate
    express oneself clearly
  9. loath
    unwilling to do something againest one's own thinking
    11.Solace
    to give comfort in grief or misfortune
  10. Tranquil
    quiet and peaceful
  11. secular
    of or relating to physical world, not spiritual
  12. infidel
    a person who does not believe in religion
  13. Marvelous
    extremely good or enjoyable
  14. Rudimentary
    very basic
  15. Renaissance
    A period of time in Europe when culture and science are in a boom
  16. Scared
    worth of respect in a religion
  17. Embroil
    to throw someone into disorder
  18. Renown
    highly respected
  19. Unanimous
    Agreed by a crowd of people
  20. Injunction
    an order from court or other authority that something must be done
  21. Dissent
    To publicly disagree with opinions
  22. Proscribe
    Prohibit from doing something
  23. Deviate
    to stray from a principle or norm
  24. Cosmopolitan
    a person who have been different part of the world and know a wide range of things
  25. Disseminate
    to cause to go to many people / spread knowledge
  26. Vigilant
    Carefully watchful to avoid danger
  27. Inculpatory
    Imply guilt
  28. Exculpatory
    to clear from alleged fault or guilt
  29. Consensus
    widely consent inside a community
  30. Scum
    A layer of something unpleasant or unwanted that forms on top of a liquid
  31. Revelation
    a usually secret fact that is made known
  32. Barrage
    a bar placed at a water course to increase the depth of the water
  33. Collision
    secret cooperation with someone for a dishonst purpose
  34. Subpoena
    a written order that command someone to appear on court
  35. Obsessive
    thinking about something or someone in a way that is too much
  36. Solidarity
    A feeling of unity between people who have the same interests, goals , etc
  37. Secular
    Not overtly or specificially religious
  38. Innertie
    The tendency to stay in the current position or movement
  39. Endogenous
    Having an internal cause or origin
  40. endowment
    the action of endowing something or someone.
  41. prelude
    prevent from happening
  42. Quid Pro Quo
    Exchange of benefits (negative word)
  43. Propensity
    an inclination or natural tendency to behave in a particular way
  44. Heresy
    An belief that is strongly at variance with established customs of beliefs
  45. Caveat
    Formal warning regarding specific issues.
  46. Tranquil
    free from disturbance; calm
  47. Ex post
    based on actual results rather than forecasts.
  48. ex ante
    based on forecasts rather than actual results.
  49. contemplate
    Think, consider
  50. deter
    discourage from doing something
  51. obliterate
    destroy utterly; wipe out
  52. brace
    a device that clamps things tight together.
  53. delinquent
    showing or characterized by a tendency to commit a minor crime.
  54. perimeter
    Boundary, confines, edges
  55. Annihilate
    Destory utterly; completely removal
  56. arm’s-length transaction
    A transaction that both party are participating out of pure self-interest, under no pressure.
  57. idiosyncratic
    quirky, peculiar

how to deal with situations when team members are not qualified enough to do the job on schedule, is a problem faced by many mangers in technology field. It is not without budget to hire qualified developer, but not enough prospective canadaicates to interview with. The technology industry is experiencing dramatic shortage in skilled workers.

人工智能产业特点

在中国现有的市场环境下,成功的高端技术品牌(科大讯飞、微软小冰等)几乎全部依赖公关宣传、包装和炒作来积累品牌形象,而不是依靠产品的口碑传播。在高大上的宣传口径下,产品的销售却依赖免费使用或长期试用策略。

面向B端的高端技术产品需要有长期、大量的研发投资,产品天然有高成本、高附加值属性。在市场上,高端产品普遍意味着高昂的价格,但在人工智能产业,这一准则却面临失效。具有极高技术门槛的人工智能产品却往往被免费、低价推广,原因在哪里?

从产品形态上看,我们可以发现人工智能产品同样遵循互联网产品的交付规律,即具有极低的边际成本。但由于人工智能产品大多面向B端,不具有利用用户流量效应带来未来广告和其他业务收益这样的盈利机会,为何要不顾品牌形象,以低价或免费策略推广。

 

现有的人工智能高端技术人才的甄选,普遍以学术成就为衡量标准,而不是成功的产品开发经验为准绳。一部分原因是现有的产业阶段以技术研发为重,另一部分原因是市场上缺乏经过验证的成功产品。(空降式科学家高管)

随笔2017年11月

  1. DSP

DSP是一个桥接小流量主与广告主的平台,主攻w3school等小网站的广告库存

 

2. 百度Apolo项目

数据开源自动驾驶

 

3. 腾讯云开发实验室

QQ20171108-093638@2x

4. 面试进度控制

一般面试都是由面试官控制面试进度,被试人不发言可能表示他想结束面试并离开

5. 关于投资

投资的关注重点在于项目的质量,创始团队的素质以及执行力

 

6. 技术的应用能力,技术转化为产品的能力,以及产品推广营销的能力

 

7. C端和B端的区别

C端用户是自助式服务和消费,一般单个用户消费额不高

B端用户需要商务洽谈,需要提供咨询等一些服务,交易之前需要磋商商务合同,一般单个用户消费额较大

8. 产品、推广营销、运营

9. 互联网模式下的现金贷,本质就是高利贷的美化包装

中国的道德风险和媒体风险都很低,在监管不关注的领域几乎什么都可以做,各种名称只是为了掩人耳目。

新兴产业可以通过良好设计的包装了躲避监管,将自己定位在非监管区域

10. 女性受害者心理

11. 微信的应用生态,由隐式URL(二维码)链接的扫描跳转为纽带

Lazada成本核算

Below is an example of the fees that will be deducted from the Unit price:
Unit price = RM 100
Commission Fee for Computer Accessories category = 2% + 6% (GST) = RM 2 + RM 0.12 = RM 2.12
Payment Fee= 2% + 6% (GST) = RM 2 + RM 0.12= RM 2.12
Shipping Fee = RM 5 (inclusive 6% GST) = RM 5

In total, the amount that you will be receiving would be RM 90.76
Total commission charged is RM9.24
Please note that, the payment fee will be paid to the bank and the shipping fee will be paid to the shipping provider.

 

 

References:

https://lazadamypsc.zendesk.com/hc/en-us/articles/219506188-What-is-Payoneer-

https://lazadamypsc.zendesk.com/hc/en-us/articles/218590457-Learn-all-about-fees

https://lazadamypsc.zendesk.com/hc/en-us/articles/217104288-Commission-overview

https://lazadamypsc.zendesk.com/hc/en-us/search?utf8=%E2%9C%93&query=fees&commit=Search