These complex formats are often called “unstructured” data, though the name is a bit of an exaggeration. Text has structure, such as the rules of grammar and spelling.

Tracking change activity over time requires complicating what might otherwise be simple data structures. One approach that many like to employ involves simply adding a start or effective date onto a ...

Both data sets contain “well-formed” pairs of paraphrases and non-paraphrases, which Google says can improve algorithmic accuracy in capturing word order and structure from below 50% to ...