Jorma J. Rissanen
1932 - 2020
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Jorma J. Rissanen
October 20, 1932 - May 9, 2020
Resident of Los Gatos
It is with great sadness that the family of Jorma J. Rissanen announce his peaceful passing on Saturday, May 9, 2020 at his residence in Los Gatos, CA. He will be sadly, missed by his wife and grandson.
Jorma J. Rissanen, native of Finland. Was an information theorist, known for inventing the minimum description link. Principal in practical approaches to arithmetic coding for Lossless data compression.
His work inspired the development of the Theory of Stochastic Chains with memory of variable length.
An IBM researcher since 1960, he received his PhD from the Helsinki University of Technology.
Was an Emeritus Professor at Tampere University of Technology.
In 2010 Rissanen was awarded an honorary doctorate by the University of Tampere.
Mr. Jorma J. Rissanen leaves behind his beloved wife Riitta T. Rissanen and his Grandson.
Private services will follow


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Published in Los Gatos Weekly Times Obits on May 29, 2020.
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2 entries
May 26, 2020
My condolences to family and friends. I am so sorry for your loss. May God hold you strong in such times and comfort you with his hope! (John 6:40)
May 29, 2020
Offering our deepest condolences during this difficult time.
Darling & Fischer Chapel of the Hills
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