Editing Claude Shannon (section)

===Miscellaneous===
Shannon also contributed to [[combinatorics]] and [[detection theory]].<ref name=":17">{{Cite journal |last1=Effros |first1=Michelle |last2=Poor |first2=H. Vincent |date=2017 |title=Claude Shannon: His Work and Its Legacy |journal=EMS Newsletter |language=en |volume=2017-3 |issue=103 |pages=29–34 |doi=10.4171/NEWS/103/5 |issn=1027-488X|doi-access=free }}</ref> His 1948 paper introduced many tools used in combinatorics. He did work on detection theory in 1944, with his work being one of the earliest expositions of the “matched filter” principle.<ref name=":17" />

He was known as a successful investor who gave lectures on investing. A report from ''[[Barron's]]'' on August 11, 1986, detailed the recent performance of 1,026 mutual funds, and Shannon achieved a higher return than 1,025 of them. Comparing the portfolio of Shannon from the late 1950s to 1986, to [[Warren Buffett]]'s of 1965 to 1995, Shannon had a return of about 28% percent, compared to 27% for Buffett.{{sfn|Poundstone|2005|p=307}} One such method of Shannon's was labeled '''Shannon's demon''', which was to form a portfolio of equal parts cash and a stock, and rebalance regularly to take advantage of the stock's randomly jittering price movements.<ref name=":18">{{Cite book |last1=Benello |first1=Allen C. |url=https://books.google.com/books?id=Wy3fCwAAQBAJ&pg=PA79 |title=Concentrated Investing: Strategies of the World's Greatest Concentrated Value Investors |last2=Biema |first2=Michael van |last3=Carlisle |first3=Tobias E. |date=2016 |publisher=Wiley |isbn=978-1-119-01204-7 |location=Hoboken, New Jersey |pages=79–81 |language=en}}</ref> Shannon reportedly long thought of publishing about investing, but ultimately did not, despite giving multiple lectures.<ref name=":18" /> He was one of the first investors to download stock prices, and a snapshot of his portfolio in 1981 was found to be $582,717.50, translating to $1.5 million in 2015, excluding another one of his stocks.<ref name=":18" />