


default search action
"Explicit and implicit variables in information retrieval (IR) systems."
Stephen E. Robertson (1975)
- Stephen E. Robertson
:
Explicit and implicit variables in information retrieval (IR) systems. J. Am. Soc. Inf. Sci. 26(4): 214-222 (1975)

manage site settings
To protect your privacy, all features that rely on external API calls from your browser are turned off by default. You need to opt-in for them to become active. All settings here will be stored as cookies with your web browser. For more information see our F.A.Q.