6. Conclusion

The availability of huge volume of text based data need to be examined to extract valuable information. Text mining techniques are used to analyze the interesting and relevant information effectively and efficiently from large amount of unstructured data. This paper presents a brief overview of text mining techniques that help to improve the text mining process. Specific patterns and sequences are applied in order to extract useful information by eliminating irrelevant details for predictive analysis. Selection and use of right techniques and tools according to the domain help to make the text mining process easy and efficient. Domain knowledge integration, varying concepts granularity, multilingual text refinement, and natural language processing ambiguity are major issues and challenges that arise during text mining process. In future research work, we will focus to design algorithms which will help to resolve issues presented in this work.