Qa+Ml@Wikipedia&Google

Qa+Ml@Wikipedia&Google

Authors	Gomes Silva
Publication date	2009
Links	Original

Qa+Ml@Wikipedia&Google - scientific work related to Wikipedia quality published in 2009, written by Gomes Silva.

Overview

As the amount of textual information available in the World Wide Web increases, it is becoming harder and harder for regular users to find specific information in a convenient manner. For instance, finding an answer to a simple factual question, such as “Who is the tallest man in the world ?”, can be a fairly tedious task. Web question answering systems offer a solution to this problem by quickly retrieving succinct answers to questions posed in natural language. However, building such systems typically requires a fairly amount of tedious, time-consuming, and error-prone human labor, which leads to systems that are costly, and difficult to adapt to different application domains or languages. To cope with these problems, in this thesis, authors propose a multi-pronged approach to web question answering, with a strong focus on machine learning techniques, that allow the system to learn rules instead of having a human expert handcrafting them. Particularly, authors propose a system comprised of three components: question classification, passage retrieval, and answer extraction. For the first component, authors developed a state-of-the-art machine learning-based question classifier, that uses a rich set of lexical, syntactic and semantic features. For passage retrieval, authors employ a multi-strategy approach that selects the appropriate information source, depending on the type of the question. Finally, for answer extraction, authors utilize several extraction techniques that range from simple regular expressions to automatic machine learning-based named entity recognizers. The system was evaluated using a set of questions that were asked by potential users of the system, yielding very promising results.

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Wikipedia Quality

Silva, Gomes. (2009). "[[Qa+Ml@Wikipedia&Google]]".

English Wikipedia

{{cite journal |last1=Silva |first1=Gomes |title=Qa+Ml@Wikipedia&Google |date=2009 |url=https://wikipediaquality.com/wiki/Qa+Ml@Wikipedia&Google}}

HTML

Silva, Gomes. (2009). &quot;<a href="https://wikipediaquality.com/wiki/Qa+Ml@Wikipedia&Google">Qa+Ml@Wikipedia&Google</a>&quot;.