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a is the number of retrieved, relevant documents, b is the number of retrieved, non-relevant documents (often termed "noise"). Precision is thus a measure of the amount of noise in document-retrieval. Relevance itself has in the literature often been based on what is termed "the system's view" and "the user's view".
It is important to ensure that clusters – either in isolation or combination – successfully model the set of possible relevant documents. A second interpretation, most notably advanced by Ellen Voorhees, [8] focuses on the local relationships between documents. The local interpretation avoids having to model the number or size of clusters ...
A literature review is an overview of the previously published works on a topic. The term can refer to a full scholarly paper or a section of a scholarly work such as a book, or an article. Either way, a literature review is supposed to provide the researcher /author and the audiences with a general image of the existing knowledge on the topic ...
The main academic full-text databases are open archives or link-resolution services, although others operate under different models such as mirroring or hybrid publishers. . Such services typically provide access to full text and full-text search, but also metadata about items for which no full text is availa
A systematic review is a scholarly synthesis of the evidence on a clearly presented topic using critical methods to identify, define and assess research on the topic. [1] A systematic review extracts and interprets data from published studies on the topic (in the scientific literature), then analyzes, describes, critically appraises and summarizes interpretations into a refined evidence-based ...
Review articles come in the form of literature reviews and, more specifically, systematic reviews; both are a form of secondary literature. [21] Literature reviews provide a summary of what the authors believe are the best and most relevant prior publications.
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A relevant utterance in this technical sense is one from which many conclusions can be drawn at a low processing cost for the addressee. [ 1 ] The addressee uses the information contained in the utterance together with his expectations about its relevance, his real-world knowledge, as well as sensory input, to infer conclusions about what the ...