【 以下文字转载自 JobHunting 讨论区 】 发信人: hsteven (Steven), 信区: JobHunting 标 题: 问个题:use caching for parallel BFS 发信站: BBS 未名空间站 (Wed Feb 15 21:00:29 2012, 美东) How to take advantage of caching for parallel BFS (like friend search in large social network) across distributed systems? Thanks a lot!
Tyco was separated into three publicly independent companies in July 2007. I don't look at financial report of companies with such short history, it is easy to be mislead by short-term events. I also don't look at companies that are conglomerate. When one looks at the financial report, the number one lesson is that any given number may be good or bad. Judging the state of a company by a single number is stupidity. The most important thing is to have an expectation of each number and judge it bas
There is no need for indexers to read these reports. But I am not a pure indexer, although I do allocate majority of my investments in index funds. I am still learning to be an active investor but I am not convinced that I have an edge yet, nevertheless I am testing my investment philosophy which requires me to read the company reports along with other info. I do not predict stock market direction though and read economics news just for fun. To me, trying to predict a complex system is just a wa
【在 j********1 的大作中提到】 : do indexers really need to read 10-Ks and 10-Qs?
现在我们可以讨论了: 第一,你怎么认为你真的能读懂这些公司的报表?我举个Tyco的例子是因为tyco从来就 没有想让你读懂他们的报表。 第二,你怎么可能知道这些数据是真实的?如果公司在Cook book,你怎么可能找报表 里的漏洞? 第三,所有的报表里面的利润和现金流都可以在一定范围里legally manipulated。如 果你不是insider你有什么方法可以发现问题? 第四,你讲的”to have an expectation of each number and judge it based on the expectation (which is based on business basics. e.g. when the revenue increase, profit should increase faster percentage-wise).“你的出发点是不错 的,但恕我直言在现实中是没有用的。现在有太多的公司都用backwards的方法来beat Wall Street的expectations,如果你不信,Dell就是一个活生生的例子。 第五,你说你“onl
【在 h*******y 的大作中提到】 : Tyco was separated into three publicly independent companies in July 2007. I : don't look at financial report of companies with such short history, it is : easy to be mislead by short-term events. : I also don't look at companies that are conglomerate. When one looks at the : financial report, the number one lesson is that any given number may be good : or bad. Judging the state of a company by a single number is stupidity. The : most important thing is to have an expectation of each number and judge it : bas
【在 a******n 的大作中提到】 : 现在我们可以讨论了: : 第一,你怎么认为你真的能读懂这些公司的报表?我举个Tyco的例子是因为tyco从来就 : 没有想让你读懂他们的报表。 : 第二,你怎么可能知道这些数据是真实的?如果公司在Cook book,你怎么可能找报表 : 里的漏洞? : 第三,所有的报表里面的利润和现金流都可以在一定范围里legally manipulated。如 : 果你不是insider你有什么方法可以发现问题? : 第四,你讲的”to have an expectation of each number and judge it based on : the expectation (which is based on business basics. e.g. when the revenue : increase, profit should increase faster percentage-wise).“你的出发点是不错
【在 a******n 的大作中提到】 : 现在我们可以讨论了: : 第一,你怎么认为你真的能读懂这些公司的报表?我举个Tyco的例子是因为tyco从来就 : 没有想让你读懂他们的报表。 : 第二,你怎么可能知道这些数据是真实的?如果公司在Cook book,你怎么可能找报表 : 里的漏洞? : 第三,所有的报表里面的利润和现金流都可以在一定范围里legally manipulated。如 : 果你不是insider你有什么方法可以发现问题? : 第四,你讲的”to have an expectation of each number and judge it based on : the expectation (which is based on business basics. e.g. when the revenue : increase, profit should increase faster percentage-wise).“你的出发点是不错
Good. You raised a lot of good questions. However, if the company statement is analyzed carefully, lots of "cooking book" cases can be found and avoided. After all, outright forging the company's bank cash account etc has been extremely rare (which should be easily verifiable by the audit firm), most companies just mis-report within or outside the boundary of GAAP. Therefore, a diversified portfolio could minimize a lot of these risks if the company report is studied carefully for such mis-repor
【在 a******n 的大作中提到】 : 现在我们可以讨论了: : 第一,你怎么认为你真的能读懂这些公司的报表?我举个Tyco的例子是因为tyco从来就 : 没有想让你读懂他们的报表。 : 第二,你怎么可能知道这些数据是真实的?如果公司在Cook book,你怎么可能找报表 : 里的漏洞? : 第三,所有的报表里面的利润和现金流都可以在一定范围里legally manipulated。如 : 果你不是insider你有什么方法可以发现问题? : 第四,你讲的”to have an expectation of each number and judge it based on : the expectation (which is based on business basics. e.g. when the revenue : increase, profit should increase faster percentage-wise).“你的出发点是不错
【在 h*******y 的大作中提到】 : Good. You raised a lot of good questions. However, if the company : statement is analyzed carefully, lots of "cooking book" cases can be : found and avoided. After all, outright forging the company's bank cash : account etc has been extremely rare (which should be easily verifiable : by the audit firm), most companies just mis-report within or outside : the boundary of GAAP. Therefore, a diversified portfolio could minimize : a lot of these risks if the company report is studied carefully for : such mis-repor
s*n
18 楼
我觉得吧,你用报表可能作假来全盘否定读报表有点偏激了。 就好比你做生意,不能因为别人可能给你假币,你就索性不数钱了吧?反正数了也白数 ,我没法鉴定真假。 我不太了解你说的那些例子,但我粗略地把我可以想象的地雷分为两类,一类是用公司 财务谋私利,然后瞒在报表的某个角落里报销掉(the bottom line is true);另一类 则是发布假数据(the bottom line is false)。 第一类,你自己吞了私钱,然后财务要match最后的结果,总得找地方overstate cost 吧,或者你得设法understate revenue吧,再不然你得弄出一个什么charge甚至最起码 depreciation吧。这种事情我估计各处总多多少少有一点,但是无论你怎么做,总会削 弱你报表中显示出的盈利能力。我读报表的人不在乎你是真的进货成本比同行高还是被 你管理层扒过一层皮,不在乎你的overpaid acquisition是你真傻还是你们有黑幕,总 之我还是能看到这个公司的运营不力。 第二类,bottom line作假,问题是这个假想来不好做,income, cash flow,
1. As I said before, manipulate the ending balance in cash is very rare and is easily detectable, what the management can play tricks are the components of total cash flow: the operating, investing, and financing segment amount. So analysis to discover any mis-classification between the cash flow components should be routine for an investor and could serve as a warning sign, for example in the Tyco case. 2. Of course, it is only a warning sign, the investor can not provide conclusive evidence of
我想了一下还是给你以下的答复。Just my two cents. 1. As I said before, manipulate the ending balance in cash is very rare and is easily detectable, what the management can play tricks are the components of total cash flow: the operating, investing, and financing segment amount. So analysis to discover any mis-classification between the cash flow components should be routine for an investor and could serve as a warning sign, for example in the Tyco case. ===》 我对你的能力毫不怀疑。只是如果你认为这些发现可以“easily detectable” ,那不是你太聪明就
hindsight is always 20/20. 知道结论之后再找证据当然很容易。现在市场上成千上 万的公司, 作假的肯定不少,你能不能在知道答案之前独自揪出一个来?
【在 h*******y 的大作中提到】 : Good. You raised a lot of good questions. However, if the company : statement is analyzed carefully, lots of "cooking book" cases can be : found and avoided. After all, outright forging the company's bank cash : account etc has been extremely rare (which should be easily verifiable : by the audit firm), most companies just mis-report within or outside : the boundary of GAAP. Therefore, a diversified portfolio could minimize : a lot of these risks if the company report is studied carefully for : such mis-repor
z*e
31 楼
Financial statements should be read by serious fundamental investors, to have a concrete understanding the business model of the company. However, detecting book cooking just from the financial statement itself and monetizing it is extremely difficult. Try a few current cases and you may realize you can raise many questions but no answers are disclosed. My 2c is that identifying a primary investable trend for an industry gives most bang of the bunk from fundamental analysis
Agree. Invest based on macro economic trend and industry trend is a good way to go. Detailed analysis on individual company financials are helpful, but I believe all info in it has been priced in already. We are investing based on our beliefs in the trend, which could be different from the market concensus.
【在 z***e 的大作中提到】 : Financial statements should be read by serious fundamental investors, : to have a concrete understanding the business model of the company. : However, detecting book cooking just from the financial statement : itself and monetizing it is extremely difficult. Try a few current : cases and you may realize you can raise many questions but no answers : are disclosed. My 2c is that identifying a primary investable trend for : an industry gives most bang of the bunk from fundamental analysis