Similarity- based approach for outlier detection
  This paper presents a new approach for detecting outliers by introducing the notion of object's proximity. The main idea is that normal point has similar characteristics with several neighbors. So the point in not an outlier if it has a high degree of proximity and its neighbors are several. The performance of this approach is illustrated through real datasets 
Amina Dik, Khalid Jebari, Abdelaziz Bouroumi and Aziz Ettouhami
cs.CV