A Text Classification Method Based on Improved KNN
A text classification and text technology, applied in text database clustering/classification, unstructured text data retrieval, special data processing applications, etc., can solve the problem that accuracy and speed cannot be taken into account at the same time, to improve classification performance and improve classification speed effect
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[0056] The invention proposes an improved KNN-based text classification algorithm, which is applied in the review process of software requirements and design documents (especially software reliability review). The algorithm first preprocesses the training text and builds a feature vector space model, including word segmentation (this algorithm uses a general word segmentation method that combines statistical word segmentation and a dictionary for word segmentation), and removes stop words (stop words refer to some in the file set) Words with a high frequency of occurrence and obviously no or little contribution to the classification task. Function words such as adverbs, pronouns, articles, prepositions, and conjunctions that appear in the file set that do not represent actual semantics belong to the category of stop words), feature Word extraction (the purpose is to select words that are helpful for classification, and reduce the dimension, using the chi-square test method, see...
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