Amir Hossein Razavi

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Text messaging through the Internet or cellular phones has become a major medium of personal and commercial communication. In the same time, flames (such as rants, taunts, and squalid phrases) are offensive/abusive phrases which might attack or offend the users for a variety of reasons. An automatic discriminative software with a sensitivity parameter for(More)
The purpose of this work is to reduce the workload of human experts in building systematic reviews from published articles, used in evidence-based medicine. We propose to use a committee of classifiers to rank biomedical abstracts based on the predicted relevance to the topic under review. In our approach, we identify two subsets of abstracts: one that(More)
In this article, we present a novel statistical representation method for knowledge extraction from a corpus containing short texts. Then we introduce the contrast parameter which could be adjusted for targeting different conceptual levels in text mining and knowledge extraction. The method is based on second order co-occurrence vectors whose efficiency for(More)
The aim of this survey was to assess the knowledge and practice of Swiss dentists focusing on the use of antibiotics in prophylactic surgical removal of lower wisdom teeth. A postal survey was conducted among all 3288 dentists who are members of the Swiss Dental Society (SSO) representing nearly all dentists in Switzerland. The questionnaire consisted of 13(More)
The aim of this survey was to assess the knowledge and practice of Swiss dentists regarding wound management and the use of mouth rinse in surgical removal of mandibular third molars (MTM). A postal survey was conducted among all 3,288 dentists who are members of the Swiss Dental Society (SSO) representing the majority of dentists in Switzerland. The(More)
We describe a project undertaken by an interdisciplinary team combining researchers in sleep psychology and in Natural Language Processing/Machine Learning. The goal is sentiment analysis on a corpus containing short textual descriptions of dreams. Dreams are categorized in a four-level scale of positive and negative sentiments. We chose a four scale(More)
The oral pulse granuloma represents a rare form of oral foreign body granulomas and results from encapsulation of particles of vegetable nutrition. Histologically, the oral pulse granuloma consists of multinucleated foreign body type giant cells, hyaline rings and chronic inflammation tissue. Intraosseous granulomas can be distinguished from extraosseous(More)