“…Collected as required by law or based on the mission or programmatic areas of government agencies Few characteristics of big data Government has released these data for decades, often on bureau Web sites and in formats that can be read by proprietary statistical software packages; as part of open government, these data are being released in different formats and on centralized platforms as open data Surveillance data (eg, National HIV Surveillance System, New York State Cancer Registry) Collected as required by law or based on mission or programmatic area of government agencies Have characteristics of big data: occur in near real-time (velocity) Government heavily protects these data through various regulations, privacy and confidentiality laws, and patient bill of rights Government has released tabulated health statistics for decades but as part of open government is releasing this information in more interactive and user-friendly formats such as the Centers for Disease Control and Prevention's FluView Interactive and Diabetes Interactive Atlas, and New York's State Prevention Agenda Dashboard Social media data (eg, Twitter, Facebook, FitBit, mobile food diaries) Data are generated personally and distributed socially, often through social networking tools or businesses that compile the data Have characteristics of big data: transactions number in the billions (volume); may include geo tags, text, digital photographs, and videos (variety); and updated in real-time (velocity) As part of open government, public health departments are starting to engage with citizens in nontraditional ways through social media and networking aBig data often exceed personal computing capabilities, need to be stored on larger servers, require strong computational tools, and span a range of data types such as text, numeric, image, video, or combinations thereof 7. …”