Täisteksti

Täisteksti iseenesest refers to the complete text content of a document, as opposed to a summary, abstract, or bibliographic metadata. In Estonian information science and library practice, täisteksti describes access to the entire body of text of a source, enabling direct reading and search within the full document.

In information retrieval, täisteksti is the basis for full-text search. Systems that support täisteksti index the words found in the entire document body, often using an inverted index to map terms to their locations. Users can perform keyword queries, phrase searches, and, in many cases, proximity or boolean operators. For languages with rich morphology, such as Estonian, effective täisteksti search typically relies on linguistic processing like stemming or lemmatization to improve recall.

Digitization and accessibility are closely linked to täisteksti. Scanned and printed materials become searchable after optical character recognition (OCR) produces machine-readable text. The quality of täisteksti depends on image quality, script, layout, and the accuracy of OCR, with Estonian requiring language-aware processing to reduce errors.

Advantages of täisteksti include thorough coverage of content and flexible querying, while drawbacks can include greater storage and processing requirements, OCR inaccuracies, and copyright or access restrictions that limit availability of the full text. In practice, information systems often combine täisteksti with metadata to support both precise retrieval and efficient discovery, with open-access policies increasingly expanding the availability of full-text resources.