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Data mining is a one of most popular technologies to information management. One of the most important our data, is text document. We can sort and classify these text documents by data mining techniques. Text classification is a technique to sorting text documents. Basic steps in text classification are preprocessing of documents, feature extract/(More)
Question Answering (QA) systems made possible to ask questions and retrieve answers using natural language (NL) queries, rather than the keyword-based retrieval mechanisms used by current search engines. Currently, there exists several QA approaches, and, according to recent evaluation results, most of them are complementary. Most QA systems combine(More)
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