Document Length

As indicated in section 3, the 2--Poisson model in effect assumes that documents (i.e. records) are all of equal length. Document length is a variable which figures in a number of weighting formulae.

• Hypotheses Concerning Document Length
• A Very Rough Model
• Document Length in the Basic Model
• Consequences of the Verbosity Hypothesis
• Second Component
• First Component
• The Scope Hypothesis
• Document Length and Term Frequency---Summary