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Quantcast is a technology company, founded in 2006, that specializes in audience measurement and real-time advertising. The company offers public access to traffic and demographic data for millions of Web sites and detailed user insights to digital publishers enrolled in its Quantified Publisher Program. Their data centers process more than 800,000 transactions per second〔(Quantcast Passes $100M Run-Rate, Lands Senior Hires As Ads Business Booms ). TechCrunch (2013-04-17). Retrieved on 2014-04-19.〕 and the company states that it produces accurate audience measurement to over 100 million web destinations. As of 2013 it was said to be one of the world's top five big data processing organisations.〔(Quantcast to create 100 Dublin jobs - RTÉ News ). Rte.ie (2013-02-21). Retrieved on 2014-04-19.〕 Its headquarters is in San Francisco, with offices in New York, Chicago, London and Dublin.〔(Google VP Julio Pekarovic Departs To Become CFO At Quantcast ). TechCrunch (2010-05-11). Retrieved on 2014-04-19.〕 ==History== Quantcast was launched in 2006 by entrepreneurs Konrad Feldman and Paul Sutter.〔(Konrad Feldman: Executive Profile & Biography - Businessweek ). Investing.businessweek.com (2005-02-01). Retrieved on 2014-04-19.〕 Calling themselves "The World's Only Open Internet Ratings Service", Quantcast were the first rating company to rely largely on direct measurement (as opposed to the traditional panel based method pioneered by Nielsen).〔(【引用サイトリンク】title=Media Planning )〕〔http://www.econ.ucla.edu/sboard/teaching/tech/Quantcast.pdf〕 Quantcast was initially backed by $6 million in venture capital funding. In January 2008, a series B funding round raised an additional $20 million from investors Founders Fund and Revolution Ventures. The company was built on the belief that digital advertising requires reliable data to be successful, so initially the primary aim was to gather detailed insights into audience characteristics. By placing tags on websites, blogs, videos and widgets, the firm measures things like audience age and gender makeup, areas of interest and type, length and frequency of their engagement with certain types of content. This information is generally made publicly available to be used by digital publishers to accurately understand their visitors and better position themselves to advertisers.〔(【引用サイトリンク】title=Quantcast to Build Products, Staff with $20 Million Funding Round )〕 In 2009, Quantcast took the second step into ad campaign management by launching Quantcast Advertise, a product enabling advertisers to target their campaigns to specific audiences in real time.〔(【引用サイトリンク】title= Paul Sutter, most recent - President and Co-Founder, Quantcast )〕 In January 2010, they raised an additional $27.5 million in a third round of funding which brought the total of capital injected into the company to $53.2 million and added Polaris Venture Partners and Cisco Systems to the list of backers.〔(Quantcast Raises $27.5 Million Series C Round From Cisco And Prior Investors ). TechCrunch (2010-01-04). Retrieved on 2014-04-19.〕 In June 2010, Quantcast’s Publisher Program was the first syndicated online traffic measurement service to receive official accreditation from the Media Rating Council Media Rating Council (MRC). Quantcast received accreditation for its site-centric data, which means the product complies with the Interactive Advertising Bureau's advertising impression and audience reach measurement guidelines.〔http://www.research-live.com/news/analytics/quantcast-gets-mrc-accreditation-for-quantified-publisher-web-traffic-data/4002901.article〕 In September 2012 Quantcast made its custom file system, Quantcast File System (QFS) for Hadoop, available as open source under an Apache license. This helped address some storage scalability problems in Hadoop environments.〔(【引用サイトリンク】title=Open Source Project Takes on Hadoop Storage Scalability Issues )〕 In January 2013, the company acquired MakeGood Software, a Seattle-based advertising technology startup, founded in 2009, that simplifies data management and reporting for online advertising campaigns.〔(Quantcast Acquires Startup MakeGood To Improve Ad Data Aggregation ). TechCrunch (2013-01-08). Retrieved on 2014-04-19.〕 The technology was subsequently integrated with Quantcast Advertise to enhance the reporting functions available for Quantcast campaigns. This nudged the company closer towards competition in the ad effectiveness category, which includes companies like comScore.〔Kaplan, David. (2013-01-08) (Quantcast Acquires Ad Effectiveness Analyst MakeGood Software ). Adexchanger.com. Retrieved on 2014-04-19.〕〔(Quantcast buys Seattle online ad startup MakeGood Software ). GeekWire. Retrieved on 2014-04-19.〕 In February 2013, Quantcast opened its EMEA operations center in Dublin with six employees and a plan to grow to over 100 over two years.〔(Quantcast aims to recruit 100 staff members within new Dublin EMEA office ). The Drum. Retrieved on 2014-04-19.〕 Account management, product operations, marketing and finance for the EMEA region will be based in Ireland.〔Conmy, Stephen. (2013-02-21) (Digital ad firm Quantcast to open HQ in Dublin with 100 new jobs | Digital Times ). Digitaltimes.ie. Retrieved on 2014-04-19.〕 Later in 2013, Quantcast added offices in France (in September) and Germany (in October). In March 2013, the company added Measure for Mobile Apps, a tool that collects data on the usage of a publisher’s iOS and Android apps to provide a cross-platform view in its analytics service.〔(Quantcast Adds Mobile App Data, Promises A Truly Cross-Platform View In Its Analytics Service ). TechCrunch (2013-03-21). Retrieved on 2014-04-19.〕 In October 2014, Quantcast is acquiring Struq for an undisclosed sum. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Quantcast」の詳細全文を読む スポンサード リンク
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