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data mining : you dont know how exactly how your data will look like , and how much datas you'll have to handle. And you are opened to new types of datas. data
by camus 14y ago
data mining : you dont know how exactly how your data will look like , and how much datas you'll have to handle. And you are opened to new types of datas.
data logging : you dont need schema databases for that.
file upload : GridFS , ...
User generated content : save semi structured documents ( like a configuration , a spreadsheet , ... ) that need to be parsed but dont need a "schema".
- disgruntledphd2 14y agoTrue, typically you don't know in advance of a data mining operation. Nonetheless, you have some invariants that you know you'll need and these can be modelled with a schema. Additionally, when attempting to put a model into production, you'll normally know what it is you need, and this can be put into a schema for ease of interoperability with other requirements (CMS, booking etc).