Nowadays, people rely mostly on the information gathered through word of mouth regarding the purchase of products of using services. On the other hand, due to the expansion of social networks among people and its daily usage in society, these advertisements are mostly published in social networks. However, not all these advertisements are accepted by the audiences. Therefore, the aim of this st...

A probabilistic topic model assumes that documents are generated through a process involving topics and then tries to reverse this process, given the documents and extract topics. A topic is usually assumed to be a distribution over words. LDA is one of the first and most popular topic models introduced so far. In the document generation process assumed by LDA, each document is a distribution o...

Persian Language has a special feature (grapheme, homophone, and multi-shape clinging characters) in electronic devices. Furthermore, design and implementation of NLP tools for Persian are more challenging than other languages (e.g. English or German). Spelling tools are used widely for editing user texts like emails and text in editors.  Also developing Persian tools will provide Persian progr...