Practical Skills of Business English Correspondence Writing Based on Data Mining Algorithm

English correspondence writing has become a necessary skill for every scientific researcher and high-tech talents. An auxiliary system can help nonnative speakers make up the lack of professional expression. The key factor business is construction knowledge base. To improve base, we need to mine frequent patterns sentences in each category. purpose this topic supplement base propose pattern mining category, so as system. Firstly, crawl large number letters telegrams from Internet, extract relevant summary information, then store it, preliminarily construct corpus based on sentences. Then, do some research structure abstracts, mark count have certain understanding their methods. Finally, In experiment, use classical FP growth algorithm method. experiment shows that between 3 6 words been mined extent. By gradually improving strategy, quality results improved effect researchers improved.