Slater first proposed a set of empirical rules to rationalize the experimental results.

Ignorance of the y coordinate by the lowx packed R-tree tends to violate this empirical rule.

He established empirical rules for the analysis of spectral lines, which remain associated with his name.

An empirical rule based on these observations is to branch on the basic structural variable x r with largest penalty (either up or down).

It is a judgement in respect of sociability so far as resting on empirical rules.

This is known as the 68-95-99.7 rule, or the empirical rule.

In 1949 he proposed Smeed's law, an empirical rule that broke the usual link between environmental factors and road accidents.

The so-called H3-rules are empirical rules to build models of CDR3.

There are only partial, empirical rules of thumb:

This, however, is an empirical rule that is valid merely of appearances in one consciousness.