Twitter news classification using SVM

With the development of web blogs, Social Networks, many news providers used to share their news headlines in various web sites and web blogs. Now-a-days in Sri Lanka, there are many news groups whom share their news headlines in micro blogging services such as Twitter. These data may carry out much valuable information which will relevant to many social research areas. Thus, the purpose of this research is to classify news into different groups so that the user could identify the most popular news group in a given country for a given time. The short messages were extracted from Twitter micro blog. Several active news groups were chosen to extract the short messages. Each short message was classified manually into 12 groups. These classified data were used to train the machine learning techniques. Words of each short message was considered as features and a feature vector was created using bag-of-words approach in order to create the instances. The data were trained using SVM (Support Vector Machine) machine learning techniques. The main reason of using SVM for the current study is, SVM supports high dimensional data. Current research is a high dimensional problem as a large number of features will be collected using short messages. Cross validation was done in order to avoid the biasness of data. The performance of the system will be the effectiveness of the system. Thus precision and recall values are calculated to measure the performance of the system. F_β was calculated to obtain a single value measurement. The results show that the system provides high performance for most groups. However, the group development-government does not show much performance using SVM.