m********1
发帖数: 31 | 1 "Effective C++" Meyers mentions a reason for a pure virtual function to have
a body: Derived classes that implement this pure virtual function may call
this implementation smwhere in their code. If part of the code of two
different derived classes is similar then it makes sense to move it up in
the hierarchy, even if the function should be pure virtual.
ISO C++ 12.4 (7):
A destructor can be declared virtual (10.3) or pure virtual (10.4); if any
objects of that class or any derived class are crea... 阅读全帖 |
|
c*d
发帖数: 52 | 2 The role is within their listed derivatives core team. It's a backed team
that deals with exchange data and back end systems. Strong database
knowledge will be required however, they do use an inhouse database not a
specific product.
Role Description:
- Work with product managers to translate and understand accurately product
specifications.
-Project management including estimation, scheduling, milestone tracking
verification, risk management, and project status reporting.
- Responsible for bug ... 阅读全帖 |
|
q******0
发帖数: 15 | 3 Will this resolve your problem? A_ex() is the your new interface provided to
library user.
class Base
{
virtual void A(); //virtual
void A_ex(); // non-virtual
}
void Base::A()
{
//do nothing
}
void Base::A_ex()
{
A();
}
class Derived
{
virtual void A();
}
void Derived::A()
{
//do something specific to Derived
} |
|
i*****e
发帖数: 218 | 4 向大家请教一个python OOP 实现的问题。
我是从C++背景转用python 的。 关于python， 有一点我一直没搞明白。
In C++, object oriented的核心是， 可以用base class的 pointer 调用 derived
class 的methods。 这样 基本的框架可以用base class实现， 通过derived class
method实现”polymorphism“。
这个的设计在python里， 是如何实现的 ？
python 里怎么用 base class object call derived class method ?
多谢大家。 |
|
s******l
发帖数: 472 | 5 【 以下文字转载自 Quant 讨论区 】
发信人: strangel (strangel), 信区: Quant
标 题: Hiring Analytics C# Developer
发信站: BBS 未名空间站 (Fri Mar 2 19:04:54 2012, 美东)
Hi friends,
My team is looking for analytics C# developer with capital market experience
. The work place is in Charlotte, NC. The position is contractor to hire.
Please email me your resume if you are interested in the position. rr28213@
yahoo.com.
Job Description:
Capital Markets Quantitative Developer
Front Office/Middle Office/Finance system develope... 阅读全帖 |
|
I*********8
发帖数: 1 | 6 Business Background
CITICS (中信证券) Information Technology and Quantitative Services Company
Ltd (ITAQS) is a financial technology firm in China with world class
talents.
ITAQS focuses on providing value added support to trading desks in CITICS,
particularly in the area of new product engineering. We are building a
multi-asset trading platform aiming as a market liquidity hub in China.
We are looking for a head quant to lead the quant team based in Shanghai -
a hands-on, dynamic lea... 阅读全帖 |
|
发帖数: 1 | 7 I'm a recently graduated students looking for entry level Full Time or
Contract jobs, objective positions as Financial Analyst/ Financial Data
Analyst/ Risk Analyst Associate/ Quantitative Research
Ouyan(Olivia) Xu
[email protected]/* */ Cell: (646)9455998
EDUCATION
2013-2015 St. John’s University New York, NY
Master of Science, Investment Management (CFA training program);
GPA 3.59/4.0
• Courses: Risk Management, Financial Derivatives, Advanced E... 阅读全帖 |
|
w*******a
发帖数: 428 | 8 详细资料如下:
Lightning Mandarin: -- Learn Chinese Characters 6+ Times Faster to Reach 90%
Coverage
Amazon Best Sellers Rank:
#35 in Books > Children's Books > Education & Reference > Foreign Language
Learning > Chinese
#35 in Kindle Store > Kindle eBooks > Reference > Foreign Language Study &
Reference > Language Instruction > Chinese
#65 in Kindle Store > Kindle eBooks > Children's eBooks > Education &
Reference > Foreign Language Learning
1. This book presents a “mind map” approach to Chinese chara... 阅读全帖 |
|
t******l
发帖数: 10908 | 9 进一步说，前面这个实数定义中的 “数轴上的点”，或者其隐含的 “geometric
measurable”，其背后是 the completeness & continuous of real numbers。
而 the completeness & continuous of real numbers，其背后是 derive real
numbers from Cauchy sequences, 或者是 derive real numbers from Dedekind cuts。
无限不循环小数的说法，更接近于 derive real numbers from Cauchy sequences。。
。这里比较有欺骗性的是，Cauchy sequences 似乎能不依赖于 space-time 而在虚无
中存在。。。但我觉得希尔伯特教的问题是，Cauchy sequences 里的 infinite close
，跟
Dedekind cuts 的 Dedekind continuous，难道不是一回事？一样也得依赖于 space-
time 而存在不是？
：xiaoju 在上面... 阅读全帖 |
|
n****e
发帖数: 2401 | 10 s******[email protected]
We have 3 new China positions, all are urgent
1x Associate, Analytics Client Service – Shanghai only
The Associate will report to Senior Associate ( Team Lead – already in
place)
1 x Senior Associate, Index Sales for China - Shanghai or Beijing
1x VP, Index Sales for China – Shanghai or Beijing
The Senior Associate will report to the VP we are also hiring above
======================================
POSITION OVERVIEW:
We are looking for highly motivated and committed fro... 阅读全帖 |
|
|
c**i
发帖数: 6973 | 12 Will Friedwald, Tracks to Our Music Heritage; The Library of Congress takes
a serious step toward making historical recordings available online. Wall
Street Journal, May 26, 2011
http://online.wsj.com/article/SB100014240527023
04066504576343394046637256.html?mod=googlenews_wsj
Note:
(a) National Jukebox; Historical Recordings from the Library of Congress
http://www.loc.gov/jukebox/
(" available to the public free of charge. The Jukebox includes recordings
from the extraordinary collections of th... 阅读全帖 |
|
g*******2
发帖数: 651 | 13 WSJ要subscribe,还是我把全文贴出来吧:
"
MBIA Inc.'s second-quarter earnings climbed 44% on a wide swing to gains in
the fair value of insured derivatives, as the bond insurer's premiums and
net investment income both fell sharply.
The company, one of the largest bond insurers in the world, saw the value of
the derivatives swing to $455.8 million in gains from $771.8 million in
losses the prior year. It reverses the pattern of the first quarter, in
which the firm swung to a loss because of credit-derivative |
|
a*****e
发帖数: 1717 | 14 收到bulletin了吧。
IB又自行加了银子的margin，估计别的broker也会这样做。
银子说不准还有一波降
To NYMEX,NYSELIFFE traders:
Wed May 4 10:50:37 2011 EST
Margin Increase: Silver Derivatives
In light of the recent unprecedented volatility in silver markets, the
exchanges that offer trading in silver derivative contracts are increasing
the margin requirements on these products. In an effort to adequately
address the inherent risk resulting from this volatility, we are increasing
margin requirements on silver derivative contracts to a l... 阅读全帖 |
|
c*****d
发帖数: 89 | 15 求助！！
1. In a cash flow hedge, the portion of a derivative's gain or loss attributed to ineffectiveness is recorded as a change in AOCI
True or False
2.The actual effectiveness of a hedge depends in part on the designation of the hedged risk
True of False
3.To the extent the hedge is effective, a loss arising from the decrease in fair value of a derivative is included in current earnings if the derivative qualifies and is designated as a
Fair-value hedge (yes or no), cash flow hedge (yes or no)
万... 阅读全帖 |
|
N********n
发帖数: 8363 | 16
Rumors from the trader pit (rumors are rumors so a grain of salt pls):
1. JPM is naked-shorting silver w/ truck loads of derivatives.
2. If silver reaches certain level / duration the derivatives explodes.
3. JPM is using own shares as collateral for the derivatives.
4. That scheme is failing w/ prices of JPM going down while silver up.
5. Expect JPM to keep fighting silver like crazy, thus the volatility.
6. Expect JPM to fail, thus the buy and hold strategy.
7. Thus PHYZZ and mining shares on... 阅读全帖 |
|
|
w**********2
发帖数: 764 | 18 Rampant silver manipulation? Rampant gold manipulation? Rampant LIBOR
manipulation? Hiding MF Global client assets? These are all happening at
JP Morgan according to an open letter reportedly written by an anonymous
employee of the firm. The whistleblower also warns of a "cascading credit
event being triggered" by derivatives related to Greek government debt.
Unlike Greg Smith at Goldman Sachs, this whistleblower has chosen to remain
anonymous for now. According to the letter, the whistle... 阅读全帖 |
|
k********8
发帖数: 7948 | 19 http://www.dailymail.co.uk/news/article-2142866/JPMorgan-Chase-
Revealed: London trader known as 'Voldemort' who is suspected of blowing
bank's staggering $2billion lossFrench-born, British-based Bruno Michel
Iksil believed to be responsible
Dubbed the 'London Whale', be bragged 'he could walk on water'
Believed to be part of Chief Investment Office at heart of bank's losses
Ina Drew, boss of CIO, was paid $14million last year
Shares in British banks fall: Barclays, RBS and Lloyds all hit
By Dai... 阅读全帖 |
|
l**********s
发帖数: 50 | 20 新浪财经讯 北京时间5月12日凌晨消息，周四晚华尔街巨头摩根大通(JPM)宣布一位绰
号为“伦敦鲸鱼”的交易员导致公司亏损约20亿美元。这一事件令全球市场雪上加霜，
JPM周五开盘即暴跌近10%。尽管事件曝光，但迄今全部细节仍不为人知，监管机构、市
场人士甚至摩根大通自己都在努力探寻来龙去脉。本文将以尽可能简单清晰的语言为您
解读这一事件。
本文的结构是十问伦敦鲸鱼门，通过10个自设自答的问题，力图达到一贴道尽的目
的。应指出的是，目前这些问题有些还没有答案，设问主要是为了抛砖引玉。
1)谁是绰号为“伦敦鲸鱼”的交易员？为什么一个外界了解如此之少的人能建立如
此庞大的头寸？
“伦敦鲸鱼”是摩根大通驻伦敦的交易员埃克西尔(Bruno Iksil)，他任职于摩根
大通的首席投资部门(CIO)。他可不是一个小人物，美国双线资本公司的主管巴哈(
Bonnie Baha)指出：“伯南克对国债市场的地位有多重要，埃克西尔在衍生品市场的地
位就有多重要。”
但是，相对他的业界地位而言，埃克西尔在圈外实在是不为人知，要知道近年来他
每年都为摩根大通赚取约1亿美元。当然，现在他一下子亏了20亿。目前外界... 阅读全帖 |
|
o*********1
发帖数: 2608 | 21 uvxy 这种不是etf， 也不是股票， 和股票基本没什么关系： 价格都是算出来的， 不
是MM操纵出来的
derivatives‘ derivatives‘ derivative
搞不懂买这个是什么心思： 看空大盘， 直接put spy／sell call， short es，还能
讲点策略
这玩意 手续费／交易费都高， 完全是机构搞出来忽悠小散的利器 |
|
o*******k
发帖数: 357 | 22 你的理解力估计常识都理解不了的
孤立的看：derivatives当然是零和； 但是derivatives本身不是孤立的，譬如option
， 和股票有直接的关系。 割裂这个关系看derivatives， 不是断章取义是什么？ |
|
|
发帖数: 1 | 24 大家好，我是牛叔，今天给大家说一下2008年的信。
前阵子牛叔忙着项目，没时间来发帖子。
In good years and bad, Charlie and I simply focus on four goals:
(1) maintaining Berkshire’s Gibraltar-like financial position, which
features huge amounts of
excess liquidity, near-term obligations that are modest, and dozens of
sources of earnings
and cash;
(2) widening the “moats” around our operating businesses that give them
durable competitive
advantages;
(3) acquiring and developing new and varied streams of earnings;
(4) expanding and nurturin... 阅读全帖 |
|
P****1
发帖数: 2670 | 25 如果是学生的话，目前tax版上大家公认是填no，因为6114－1(c)(1)(iv)中明确说了
income
derived by artistes, athletes, students, trainees or teachers可waive。
对于researcher没有定论，我觉得是按照301.6114-1(b)中的(4)(ii)(D)条款，即
treaty上有要求，而申请人符合treaty的要求。
条款见：
http://www.law.cornell.edu/cfr/text/26/301.6114-1
(b) Reporting specifically required.
Reporting is required under this section except as expressly waived under
paragraph (c) of this section. The following list is not a list of all
positions for which reporting is required under this secti... 阅读全帖 |
|
P****1
发帖数: 2670 | 26 如果是学生的话，目前tax版上大家公认是填no，因为6114－1(c)(1)(iv)中明确说了
income
derived by artistes, athletes, students, trainees or teachers可waive。
对于researcher没有定论，我觉得是按照301.6114-1(b)中的(4)(ii)(D)条款，即
treaty上有要求，而申请人符合treaty的要求。
条款见：
http://www.law.cornell.edu/cfr/text/26/301.6114-1
(b) Reporting specifically required.
Reporting is required under this section except as expressly waived under
paragraph (c) of this section. The following list is not a list of all
positions for which reporting is required under this secti... 阅读全帖 |
|
c********g
发帖数: 174 | 27 【 以下文字转载自 Immigration 讨论区 】
发信人: carlzhuang (carlzhuang), 信区: Immigration
标 题: 配偶I-140/I-485过程中I-485副申请人的F1/OPT/H1b选择问题
发信站: BBS 未名空间站 (Thu Jan 12 13:52:03 2012, 美东)
当配偶在file I-140/I-485过程中，副申请人正面临毕业。根据在版上版下学习，总结
如下，不知是否准确。请高人点评（最好逐行。。。）
谢谢。
A B 为夫妻
--A currently in the U.S. H1b w/o visa, A 在准备Eb1 I-140申请
can apply for H1b visa as usual, regardless of I-140/I-485
can use I-485 AP leave/return U.S. w/o H1b visa
can not apply for F1 after either I-140/I-485 filing
--B currently in the U.S. F1 w/ ... 阅读全帖 |
|
m********x
发帖数: 87 | 28 你老公的485随时可以file。不是follow-to-join，是derivative for spouses.
b. My spouse or parent applied for adjustment of status or was granted
lawful permanent residence in an immigrant visa category that allows
derivative status for spouses and children.
derivative for spouses 可以和主申请人分开交，而且没有时间限制。应该可以
relink你老公的485到你的eb1上。 |
|
e********t
发帖数: 1865 | 29 这个问题看来挺常见的，搜索各大律师事务所的网站上基本谈到的答案都一致，你的婚
姻发生在你485批准前你的配偶就可以以derivative beneficiary的身份来交485.
另外仔细读485的instruction 2关于谁有资格递交485就写清楚了：based on Being the spouse or child at
the time principle applicant files to adjust the status OR at a time a
person is granted permanent residency in an immigrant category that allows
derivative Status for spouse or children. EB 是允许配偶和孩子做为derivative
的，也就是说只要在eb主申请人的绿卡拿到前拥有副申请人资格（结婚），就可以递交485。 |
|
c********g
发帖数: 174 | 30 当配偶在file I-140/I-485过程中，副申请人正面临毕业。根据在版上版下学习，总结
如下，不知是否准确。请高人点评（最好逐行。。。）
谢谢。
A B 为夫妻
--A currently in the U.S. H1b w/o visa, A 在准备Eb1 I-140申请
can apply for H1b visa as usual, regardless of I-140/I-485
can use I-485 AP leave/return U.S. w/o H1b visa
can not apply for F1 after either I-140/I-485 filing
--B currently in the U.S. F1 w/ F1 visa(visa expiring summer 2012, I-20
expiring May 2012, graduation May 2012)
准备作为I-485副申请人
everything as usual before I-485 filing(the first instance that involves ... 阅读全帖 |
|
b**********e
发帖数: 2042 | 31 主申请人eb1b绿卡已批，副申请人在美国, F1, opt-extension有独立的status，结婚
早于绿卡申请日期。
副申请人打算递交绿卡，可以直接递交I-485吗？
I485的填表说明上写着:
Based on being the spouse - at the time another adjustment applicant files
to adjust status or at the time a person is granted permanent resident
status in an immigrant category that allows derivative status for spouses
and children
A. if the spouse of child is in the United States, the individual
derivatives may file their Form I-485 with Form I-485 for the principal
applicant, or file Form I-4... 阅读全帖 |
|
h****2
发帖数: 8 | 32 详细情况请见下面这个贴子：
http://www.mitbbs.com/article_t0/Immigration/33558157.html
简单来说，就是主卡还没批，副卡批了，找议员催绿，结果议员说TSC要先收会已经批
了三个多月的副卡，再一起处理我们的CASE。今天收到了TSC要求寄回绿卡的信。
前面三段是大段引用法律条文，大意是说他们有权在五年内收回错误发出的绿卡。 第
四段进入重点，如下：
In this case, although a visa was available at the time your application was
adjudicated, as a derivative you cannot precede the principal applicant as
a lawful permenent resident. Accordingly, as a derivative of your spouse (my
name) you cannot derive the status of a lawful permenent resident at... 阅读全帖 |
|
s*****c
发帖数: 753 | 33 Well, she is wrong. Getting green card through 140 and getting green card
through other method (like family based) are different.
Lets see the difference between "immediate available immigration visa" and "
derivative status", shall we?
An Immigrant Visa category is determined by the type of petition filed on
behalf of the beneficiary that is approved by the U.S. Citizenship and
Immigration Services (USCIS). Depending on the visa category, an immigrant
visa is either immediately available or is ... 阅读全帖 |
|
s*****c
发帖数: 753 | 34 Lets see the difference between "immediate available immigration visa" and "
derivative status", shall we?
An Immigrant Visa category is determined by the type of petition filed on
behalf of the beneficiary that is approved by the U.S. Citizenship and
Immigration Services (USCIS). Depending on the visa category, an immigrant
visa is either immediately available or is numerically limited by law. For
immediate relatives of U.S. citizens (IR category), visa numbers are
immediately available once th... 阅读全帖 |
|
w*l
发帖数: 933 | 35 路边社又发文了。著名移民律师Greg Siskind最新博客文章：
White House Proposal Would Grant Work Cards to Backlogged Employment Green
Card Applicants
http://blog.ilw.com/gregsiskind/2015/05/15/white-house-proposal
The White House has appeared to have received the legal go ahead to proceed
with implementing a proposal hinted at in the President’s executive action
remarks in November 2014. One of the more popular proposals aimed at
retaining skilled workers in the US is the creation of a “pre-registration
” process that w... 阅读全帖 |
|
i*v
发帖数: 47 | 36 JACS和Angew. Chem. Int. Ed. 一作8篇。。。。
回去的早可以评院士了吧。
Structural Elucidation and Regioselective Functionalization of An Unexplored
Carbide Cluster Metallofullerene Sc2C2@CS(6)-C82
X. Lu, K. Nakajima, Y. Iiduka, H. Nikawa, N. Mizorogi, Z. Slanina, T.
Tsuchiya, S. Nagase, T. Akasaka
J. Am. Chem. Soc. in press.
Crystallographic X-Ray Analyses of Yb@C2v(3) -C80 Reveal a Feasible Rule
That Governs the Location of a Rare Earth Metal inside a Medium-Sized
Fullerene
X. Lu, Y. Lian, C. Beavers, N. Mizorogi, Z... 阅读全帖 |
|
s******l
发帖数: 472 | 37 【 以下文字转载自 JobMarket 讨论区 】
发信人: strangel (strangel), 信区: JobMarket
标 题: Hiring Analytics C# Developer (转载)
发信站: BBS 未名空间站 (Fri Mar 2 19:12:18 2012, 美东)
发信人: strangel (strangel), 信区: Quant
标 题: Hiring Analytics C# Developer
发信站: BBS 未名空间站 (Fri Mar 2 19:04:54 2012, 美东)
Hi friends,
My team is looking for analytics C# developer with capital market experience
. The work place is in Charlotte, NC. The position is contractor to hire.
Please email me your resume if you are interested in the positio... 阅读全帖 |
|
i**********o
发帖数: 5993 | 38 base and bonus?
“Financial Engineer for Derivatives Valuation Services”
The successful candidate will join our Bloomberg Core OTC Derivatives/
Structured Notes Product Group, and be part of a team responsible to provide
a derivatives valuation service for Bloomberg customers. |
|
h****n
发帖数: 336 | 39 Their value derive from underlying pool...should be derivatives.
Credit derivatives |
|
|
|
t*******r
发帖数: 22634 | 42 其实这个股市的本质问题就是，搞了一堆又一堆的 derivative，还在
derivative 上面再搞 derivative，硬生生的把一个本来相对而言稳定
的系统搞成了一个极其不稳定系统。最后自己把自己给玩了 …………
房市将来也一样滴 …………
当然，目前急需找到一个替罪羊，然后广大人民群众情绪稳定 ………… |
|
|
i*****e
发帖数: 218 | 44 向大家请教一个python OOP 实现的问题。
我是从C++背景转用python 的。 关于python， 有一点我一直没搞明白。
In C++, object oriented的核心是， 可以用base class的 pointer 调用 derived
class 的methods。 这样 基本的框架可以用base class实现， 通过derived class
method实现”polymorphism".
这个的设计在python里， 是如何实现的 ？
python 里怎么用 base class object call derived class method ?
多谢大家。 |
|
i***0
发帖数: 8469 | 45 My client is a very successful financial firm based in New York City and
they are looking for an extremely talented C++ software engineer to join
their derivatives application group as a tech lead.
The successful candidate will have significant experience developing systems
involving securities specifications and structuring tools, utilizing market
data, pricing model valuations and risk systems.
REQUIREMENTS
Strong C/C++/UNIX development skills
Experience designing and developing software to st... 阅读全帖 |
|
m*******n
发帖数: 5103 | 46 此法案又称 GMO Labeling，于去年提出，在搜集足够签名后由州务卿咨请州议会表决
，但州议会并未进行讨论与表决。根据法律规定，未讨论的法案在第二年的普选时交由
选民公投，也就是今年的 11/5。如果通过，将在 7/1/2015 实施。
法案要求所有经过基因改造的食品，或者含有基因改造成分的食品，都必须明确标示。
正方认为这是民众知的权利，反方认为这会提高食品价格，尤其对本州的中小企业不利。
敬请有投票权的同学们关注此案，正反双方的意见请自行参考以下网站：
正方（主张必须标识）网站 http://yeson522.com/
反方（反对标识）网站 http://factsabout522.com/
阴谋论者可能会觉得反方一定是邪恶势力，但反方除了大公司以外，也包括本地
的中小企业。反对的原因除了提高成本，伤害本地经济以外，也有人说此法案本身不够
健全，如果实施，反而抓小放大，误导消费者。
重点是：天下事情没那么简单 --- 邪恶势力 vs. 屁民，正反双方的意见都有他们的道
理。建议同学们学习学习再决定。
此法案只是说基因改造的食品必须标识。至于基因改造的食品对人究竟有害无害，不是... 阅读全帖 |
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O******e
发帖数: 238 | 47 _gen/derivatives/landscape_635/friend9n-1-web.jpg
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m**i
发帖数: 8296 | 49 刚刚看到的。。。思考占星是否伪科学的时候随手一搜。。。哇、哇、哇~`
J Clin Epidemiol. 2006 Sep;59(9):964-9. Epub 2006 Jul 11.
Testing multiple statistical hypotheses resulted in spurious associations: a
study of astrological signs and health.
Austin PC, Mamdani MM, Juurlink DN, Hux JE.
Institute for Clinical Evaluative Sciences, G1 06, 2075 Bayview Avenue,
Toronto, Ontario, M4N 3M5 Canada. p**********[email protected]
Comment in:
* J Clin Epidemiol. 2006 Sep;59(9):871-2.
Abstract
OBJECTIVES: To illustrate how multiple hypotheses... 阅读全帖 |
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c**i
发帖数: 6973 | 50 Koreans alone reportedly have a fad on jaw-line reduction. If you are single
minded about jawline reduction, go directly to (5).
Sam Dolnick, Plastic Surgeons in City's Enclaves See Beauty Trends Emerge by
Culture. New York Times, Feb 19, 2011 (title in the print).
http://www.nytimes.com/2011/02/19/nyregion
/19plastic.html?scp=1&sq=cosmetic&st=cse
("Koreans in [New York City's Flushing] Chinatown are having jaw lines
slimmed")
Note:
(a) This report was featured in my posting in Fashion board tit... 阅读全帖 |
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