Title indexing

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The title indexing is one of the text linguistic methods for the development of content. It is therefore part of information retrieval and the indexing of documents. Since most documents have a title, even those that otherwise have no text elements such as video and audio files, you can index the first keywords . Since titles also represent their own semantic document element, they are unambiguous and can therefore also be read out by very simple computer systems and used for keywording.

There are three systems for indexing stocks:

  • KWIC (Key Word In Context) - Keywords are entered together with their context in the same position
  • KWOC (Keyword Out of Content), keywords are entered together with the entire title as a context regardless of their own position
  • KEYTALPHA (Key-Term Alphabetical), keywords are entered in alphabetical order without any context

history

Title indexing was originally developed in 1864 by the Italian Andrea Crestadoro . He was commissioned to index and catalog the archived works in the Manchester Library. For this purpose he used the title's keywords and thus developed the system known today as Keyword In Titles. KWIC was designed by the German computer scientist Hans Peter Luhn from this original form of title indexing in order to be able to index digital documents more easily and automatically. In this context, Luhn expanded the system to include spaces and stop words.

Individual evidence

  1. ^ Salman Haider: Title-Based Indexing. In: LIBRARIANSHIP STUDIES & INFORMATION TECHNOLOGY. February 25, 2017, accessed August 9, 2019 .
  2. Markus Malek: Introduction to Information Retrieval: Title indexing. In: Lupus Verbi. November 19, 2018, accessed on August 9, 2019 (German).
  3. Kathrin Knautz, Wolfgang G. floor: Lecture knowledge representation. In: HHU - Heinrich Heine University. Retrieved on August 9, 2019 (German).