Why Is Data Dirty?

2013-12-12T01:27:00.001-08:00

Why Is Data Dirty?

oNoisy data (incorrect values) may come from

nfaulty data collection instruments

ndata entry problems

ndata transmission problems

ntechnology limitation

ninconsistency in naming convention

oInconsistent data may come from

nDifferent data sources

oDuplicate records also need data cleaning

oData cleaning

nFill in missing values, smooth noisy data, identify or remove outliers, and resolve inconsistencies.

oData integration

n Integration of multiple databases, data cubes, or files

nSome attributes representing a given concept may have different names in different databases, causing inconsistencies and redundancies.

nHaving a large amount of redundant data may slow down or confuse the knowledge discovery process.

free store huge amount data online

2013-12-12T01:07:00.003-08:00

online storages is increased today day by day because people keep their data in safe place whenever they can use it when he abroad from hometown there are many companies in the world which provide the facilities for storage online data free in limited amount e.g skyDrive ,Gdrive.here I am discussing about their storage capacity below

1) http://dropbox.com           Dropbox its gives you     (02GB) free Storage Space

2) https://drive.google.com GDrive its gives you       (05GB) free Storage Space

3)https://skydrive.live.com   Microsoft its gives you   (07GB) free Storage Space

4) http://mediafire.com          MediaFire it gives you   (10GB) free Storage Space

5) https://mega.co.nz             MEGA drive its give you (50GB) free Storage Space

computer fun

Why Is Data Dirty?

free store huge amount data online