quiz 1 notes.docx - Data Data is information that is processable by computer information is in digital form Accessible Data Right to access to the Data

quiz 1 notes.docx - Data Data is information that is...

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Data Data is information that is processable by computer: information is in digital form Accessible Data Right to access to the Data An API (Application Programming Interface) is a document that specifies what queries are possible and their format, and the format of the responses Tabular Data Not a PDF or image, the individual cells must be accessible (eg you can load the table on a spreadsheet) Image “Segmentation”: Finding Lines in an Image Metadata is data that describes data Databases Tabular organization of data Efficient “queries” Relational databases: relations across tables “Key” as the unique identifier of objects across tables Data Silos Hard to get data out Hard to integrate data across silos Examples: Social sites Electronic patient records Data “Born Digital” Originally recorded or created in digital form “Big Data” Volume: very large quantities Variety: very diverse in nature eg. from different sensors Velocity: very fast collection rates A compiler is a special program that processes statements written in a particular
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