EntityQ7407127· pop 6· linked from 18 articlesSam B. WilliamsSign in to saveAmerican inventorRecent publications · Crossref5 total works indexedThe PHQ-9 · 2001 · cited 38,286xSciPy 1.0: fundamental algorithms for scientific computing in Python · 2020 · cited 34,528xA Brief Measure for Assessing Generalized Anxiety Disorder · 2006 · cited 27,822xLearning representations by back-propagating errors · 1986 · cited 23,615xGeant4—a simulation toolkit · 2003 · cited 20,919xvia Crossref · CC0ConnectionsSeattleEntityStellantis North AmericaCompanyCategories1921 births2009 deaths20th-century American businesspeopleAmerican aerospace engineersAmerican inventorsAviation inventorsBusinesspeople from SeattleCollier Trophy recipientsNational Aviation Hall of Fame inducteesNational Medal of Technology recipientsPeople from Indian Wells, California