Question: Carl Bialik is an American journalist, who on February 6, 2017, was named Data Science Editor of Yelp, working on Yelpblog, in late 2013, Bialik was hired by which American statistician and writer who analyzes baseball (see sabermetrics) and elections,at FiveThirtyEight.com?

full_context: Document 1: Pete Palmer: Pete Palmer (born January 30, 1938) is an American sports statistician and encyclopedia editor. He is a major contributor to the applied mathematical field referred to as sabermetrics. Along with the Bill James "Baseball Abstracts", Palmer's book "The Hidden Game of Baseball" is often referred to as providing the foundation upon which the field of sabermetrics was built.
Document 2: Jamie Bartlett (journalist): Jamie Bartlett is a journalist and tech blogger for The Telegraph and Director of the Centre for the Analysis of Social Media for Demos in conjunction with The University of Sussex.
Document 3: Carl Bialik: Carl Bialik is an American journalist, who on February 6, 2017, was named Data Science Editor of Yelp, working on Yelpblog. Prior to this, Bialik was known for his work for "The Wall Street Journal's" web site, and the paper itself. He is also a co-founder of the growing online-only "Gelf Magazine". In late 2013, Bialik was hired by Nate Silver at FiveThirtyEight.com.
Document 4: Steve Kettmann: Kettmann, despite having written on a wide variety of topics, is best known for his work on several baseball books, most recently "Baseball Maverick: How Sandy Alderson Revolutionized Baseball and Revived the Mets" (Grove Atlantic, April 2015). The book explores Alderson's role as general manager of the Oakland A's in the 1980s and 1990s, including his role as a mentor to the young Billy Beane, who was later made famous in the movie adaption of the Michael Lewis book "Moneyball". It also focuses on Alderson's years as general manager of the New York Mets starting in late 2010.
Document 5: Dean Oliver (statistician): Lawrence Dean Oliver (born February 6, 1969) is an American statistician who is prominent contributor to the statistical evaluation of basketball, sometimes called APBRmetrics after the forum of a growing community of basketball analysts. He is the author of "Basketball on Paper", the former producer of the defunct Journal of Basketball Studies. More recently, Oliver has served in front office roles with the Sacramento Kings, Seattle SuperSonics and Denver Nuggets of the NBA (including when the controversial trade for Allen Iverson was made). In October 2015 Dean Oliver joined TruMedia Networks as Vice President of Data Science. TruMedia Networks is an engineering firm specializing in sports analytics solutions for leagues, franchises and media partners, and says of Oliver in a press release announcing Dean Oliver's hiring, "Oliver was most recently in the front office of the Sacramento Kings and is considered one of the best minds in the world of sports analytics."
Document 6: Muthu Alagappan: Muthu Alagappan (born  1990 ) is a medical student known for his professional basketball analytics. He was born in England and raised in Texas. During college at Stanford University, he began an internship at big data startup company Ayasdi, where he leveraged their software on basketball statistics to determine 13 distinct positions of play. After speaking at the 2012 MIT Sloan Sports Analytics Conference, several professional teams began to use the company's software. He was given the top prize at the conference, and "GQ" called his work both "a new frontier for the NBA" and "Muthuball"—an allusion to Moneyball baseball statistical analysis known for revolutionizing the sport. "Forbes" included him in their 2012 and 2013 "30 Under 30" list of influential people in the sports industry. His work has received mention in "The New York Times", ESPN, "The Wall Street Journal", "Wired", and "Slate".
Document 7: FiveThirtyEight: FiveThirtyEight, sometimes referred to as 538, is a website that focuses on opinion poll analysis, politics, economics, and sports blogging. The website, which takes its name from the number of electors in the United States electoral college, was founded on March 7, 2008, as a polling aggregation website with a blog created by analyst Nate Silver. In August 2010, the blog became a licensed feature of "The New York Times" online. It was renamed FiveThirtyEight: Nate Silver's Political Calculus. In July 2013, ESPN announced that it would become the owner of the FiveThirtyEight brand and site, and Silver was appointed as editor-in-chief. The ESPN-owned FiveThirtyEight began publication on March 17, 2014. In the ESPN era, the FiveThirtyEight blog has covered a broad spectrum of subjects including politics, sports, science, economics, and popular culture.
Document 8: Jacob Weisberg: Jacob Weisberg (born 1964) is an American political journalist, serving as editor-in-chief of Slate Group, a division of Graham Holdings Company. Weisberg is also a "Newsweek" columnist. He served as the editor of "Slate" magazine for six years, until stepping down in June 2008. He is the son of Lois Weisberg, a Chicago social activist and connector mentioned in Malcolm Gladwell's book "The Tipping Point".
Document 9: Nate Silver: Nathaniel Read Silver (born January 13, 1978) is an American statistician and writer who analyzes baseball (see sabermetrics) and elections (see psephology). He is the editor-in-chief of ESPN's "FiveThirtyEight" and a Special Correspondent for ABC News. Silver first gained public recognition for developing PECOTA, a system for forecasting the performance and career development of Major League Baseball players, which he sold to and then managed for Baseball Prospectus from 2003 to 2009.
Document 10: Ezra Klein: Ezra Klein (born May 9, 1984) is an American journalist, blogger, and political commentator who currently serves as editor-at-large of "Vox". He was previously a blogger and columnist for "The Washington Post" and an associate editor of "The American Prospect". He has served as a contributor to Bloomberg News and MSNBC.
Document 11: Nate Heisler: Nate Heisler is a MLBPA certified sports agent at Beverly Hills Sports Council. Heisler represents Major League Baseball players
Document 12: The Believer (magazine): The Believer is a bi-monthly magazine of interviews, essays, and reviews. Founded by the writers Heidi Julavits, Vendela Vida, and Ed Park in 2003, the magazine is a five-time finalist for the National Magazine Award, with contributors ranging from literary luminaries such as Hilton Als, Anne Carson, Nick Hornby, Susan Straight, and William T. Vollmann to emerging talents for whom the magazine has been a proving ground, including Eula Biss, Gideon Lewis-Kraus, Leslie Jamison, Rachel Kaadzi Ghansah, Kent Russell, and Rivka Galchen.
Document 13: Bill James: George William James (born October 5, 1949) is an American baseball writer, historian, and statistician whose work has been widely influential. Since 1977, James has written more than two dozen books devoted to baseball history and statistics. His approach, which he termed sabermetrics in reference to the Society for American Baseball Research (SABR), scientifically analyzes and studies baseball, often through the use of statistical data, in an attempt to determine why teams win and lose. His "Baseball Abstract" books in the 1980s are the modern predecessor to websites using sabermetrics such as Baseball Prospectus and Baseball Primer (now Baseball Think Factory).
Document 14: Peter Beinart: Peter Alexander Beinart ( ; born 1971) is an American columnist, journalist, and liberal political commentator. A former editor of "The New Republic", he has written for "Time", "The New York Times", "The New York Review of Books" among other periodicals, and is the author of three books. He is associate professor of journalism and political science at City University of New York. He is a senior columnist at "Haaretz" whose views on Israel evoke impassioned controversy. He also is a contributor to "The Atlantic" and "National Journal and" programs on CNN.
Document 15: Dave Leip's Atlas of U.S. Presidential Elections: Dave Leip's Atlas of U.S. Presidential Elections is a web site that provides tables, graphs, and maps for presidential (1789–present), senatorial (1990 and onwards), and gubernatorial (1990 and onwards) elections. Data include candidates, parties, popular and electoral vote totals, and voter turnout. County-level data is available for many years, and all data are compiled from official sources. Leip's Atlas has been cited as a "preferred source for election results" by statistician and political pundit Nate Silver.
ground_truth: Nate Silver