Re: Sr SAS Programmer Analyst - Regulatory Reporting - Job Posting - Bay

2001-12-22 Thread Vincent Granville

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Vincent Granville, Ph.D.
Senior Statistician, Cnet
Founder, Data Shaping Solutions

Resume:
http://www.datashaping.com/vincent.shtml

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Reach and Frequency

2001-07-25 Thread Vincent Granville

An advertiser purchases online Ad impressions and wants to achieve a
certain reach over a specified period of time. How many impressions
does he have to purchase? The page-per-user distribution is known.

I've published a solution on my web site, at
datashaping.com/internet.shtml. However,  I am wondering if more
general results are available. Thanks.

Vincent Granville, Ph.D.
www.datashaping.com






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Re: Call for papers

2001-01-30 Thread Vincent Granville

I had many requests on how to susbcribe to the newsletter. The URL is
http://www.datashaping.com/newsletter.shtml . Please subscribe directly
online if you are interested. Thank you.

Vincent

Vincent Granville wrote:

 A D V A N C E D T R A D I N G S T R A T E G I E S

 Datashaping is publishing  "Advanced Trading Strategies",
 the source of statistical expertise for stock traders. Our
 monthly newsletter focuses on statistical strategies, with an
 emphasis on the technical aspects of real life stock trading.
 Authors are encouraged to submit articles for review. We
 will publish  material on the following topics:

  - tax issues, in particular with short-term trading
  - short-term and intra-day trading
  - statistical algorithms, parametrization
  - strategy design and optimization
  - impact of spread and trading errors
  - designing robust strategies
  - combining short and long term strategies on a single stock
  - metrics used to assess the efficiency of a strategy
  - statistical distributions of interest for stock traders
  - data gathering and data quality issues
  - statistical modeling, model fitting

 To send an article, e-mail us at [EMAIL PROTECTED]
 Accepted articles will be published on our web site. We also
 accept job offer postings. Subscription to our newsletter is
 currently free.

 Vincent Granville
 --
 http://www.datashaping.com : Advanced Statistical Strategies



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Mathematical artwork recently posted

2000-12-26 Thread Vincent Granville

New and unusual virtual images, posted on datashaping,
at   http://www.datashaping.com/artwork.shtml . Enjoy!

Vincent


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mathematical artwork

2000-11-28 Thread Vincent Granville

Interesting mathematical creations. They are not fractals.
It's produced with pretty simple functions, and does not
require recursive computations. Actually, some of these
objects are very similar to fractals - but again do not
involve recursive formulas. Some other images are clearly
not fractals, but instead exhibit original textures (like wool
cloth or carpet).

http://www.datashaping.com/artwork.shtml



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distribution of daily low/high

2000-11-03 Thread Vincent Granville

The problem is to find the (parametric?) distribution of the ratio
low/high in connection with Brownian motions. The application I have in
mind is daily low/high or 52-week low/high for any particular stock
price. I would like to add a result on this subject in my section
"theorems"  on my web site. I've been thinking of adding a graph of
these distributions, obtained by simulation, but if someone has
something better (a theoretical result or a good reference), I would
acknowledge her contribution. I am also interested in extreme value
theory applied to the stock market.

Vincent Granville

--
http://www.datashaping.com : Advanced Statistical Strategies



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Random Walk

2000-10-09 Thread Vincent Granville

In a random walk with state space = Z and transition
probabilities P(k -- k+1)=p, P(k -- k)=r, P( k -- k-1)=q
with p+q+r=1, the expected number of steps before
moving up is either finite or infinite depending on p, q,
r.

This means (applied to the stock market) that it is possible
for a stock price to never surpass its present value. I am looking
for a proof that someone with NO mathematical background
could understand. Tthe easiest proof I have so far requires
knowledge of recurrence relations and basic arithmetic
(+, -, *, /). I would like to put this proof on my financial web
site. The author of the proof would be acknowledged.

Thank you.

Vincent Granville


--
http://www.datashaping.com : Advanced Trading Strategies




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Introducing trading strategies in the classroom

2000-07-16 Thread Vincent Granville

Trading simulations are a great way to familiarize students with
investing, and show them how mathematics can be applied to real life
problems. Now, this can be done entirely online at minimum cost. Please
visit our web site. Your feedback is also appreciated to further improve
our pages.

http://www.datashaping.com/finance.shtml




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