Text classification model for methamphetamine-related tweets in Southeast Asia using dual data preprocessing techniques

the clustering and classification data mining techniques in insurance fraud detection:the case of iranian car insurance

با توجه به گسترش روز افزون تقلب در حوزه بیمه به خصوص در بخش بیمه اتومبیل و تبعات منفی آن برای شرکت های بیمه، به کارگیری روش های مناسب و کارآمد به منظور شناسایی و کشف تقلب در این حوزه امری ضروری است. درک الگوی موجود در داده های مربوط به مطالبات گزارش شده گذشته می تواند در کشف واقعی یا غیرواقعی بودن ادعای خسارت، مفید باشد. یکی از متداول ترین و پرکاربردترین راه های کشف الگوی داده ها استفاده از ر...

Evaluating preprocessing techniques in a Text Classification problem

Aiming to access the importance of the preprocessing phase on the text classification problem, we applied the Support Vector Machine paradigm to the Portuguese Attorney General’s Office dataset (written in the European Portuguese language) and the Reuters dataset. Searching for the best document representation, we evaluated and analysed some known feature reduction/construction, feature subset ...

Optimising Sentiment Classification using Preprocessing Techniques

Sentiment Classification refers to the computational techniques for classifying whether the sentiments of text are positive or negative. Sentiment Classification being a specialized domain of text mining is expected to benefit after preprocessing. In this paper we propose various models with selective combinations of preprocessing techniques and Sentiment Classifiers, to optimize Sentiment Clas...

Novel methods for text preprocessing and classification

Data Preprocessing for Intrusion Detection System using Swarm Intelligence Techniques

Due to access of malicious data in internet, Intrusion detection system becomes an important element in system security that controls real time data and leads to huge dimensional problem, so a data pre-processing is necessary to reduce haziness and to clean network data. To reduce false positive rate and to increase efficiency of detection, the paper proposed a new swarm intelligence technique ...