Abstract Attribute-Based Prediction of File Properties(15)

We present evidence that attributes that are known to the file system when a file is created, such as its name, permission mode, and owner, are often strongly related to future properties of the file such as its ultimate size, lifespan, and access pattern.

?NABLE predicts “write-mostly" if

first=cache & last=gif [5742/94.0%]?MABLE predicts “size=0” if

mode=777 [4535/99.8%]?ABLE predicts “deleted within 1 sec” if

first = 01eb & last = 0004 & mode = 777 &

uid = 18abe [1148/99.7%] Figure5:Example rules for DEAS03discovered by NABLE,MABLE,and ABLE.The number of?les that match the attributes and the observed probability that these?les have the given property are shown on the right. For example,NABLE predicts that names whose name begins with cache and end in.gif will be“write-mostly”.This prediction is based on observations of 5742?les,94.0%of which have the“write-only”prop-erty.

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