Effective separation of buildings from trees is a major challenge in automatic building detection from aerial imagery and Lidar data. In cases where an adopted building detection technique cannot distinguish between these two classes of objects, the presence of trees in the scene can increase the rates of both false positives and false negatives in the building detection process. This paper pre...

Audio source separation aims to extract the signals of individual sound sources from a given recording. In this paper, we review three recent advances which improve the robustness of source separation in real-world challenging scenarios and enable its use for multisource content retrieval tasks, such as automatic speech recognition (ASR) or acoustic event detection (AED) in noisy environments. ...

We present the best known separation between tree-like and general resolution, improving on the recent exp(n) separation of BEGJ98]. This is done by constructing a natural family of contradictions, of size n, that have O(n)-size resolution refutations, but only exp(((n= log n))-size tree-like refutations. This result implies that the most commonly used automated theorem procedures, which produc...

The purpose of this study is to develop robust techniques for speaker segmentation and clustering with focus on meetings domain. The techniques examined can however be applied to any other domains. Traditional techniques for speaker diarization developed for telephone conversations or broadcast news are based on a single channel input, which is notably different from meetings domain which can h...

Two sensitive methods are described for detection of DNA dependent DNA polymerase activities in polyacrylamide gels after their fractionation by micro-disc electrophoresis. One technique is based on the increase in fluorescence of the ethidium bromide complex with template polydeoxyribonucleotides brought about by the action of the polymerases. The sensitivity of the previously described techni...

After the adventure endoscopic surgery and usage for the management of lung based pathologies, it is carried to the endoscopic approaches of thoracal spine pathologies (1,2). The major advantages of endoscopic surgery is the elimination of thoracotomy. For this reason, the patient does not cause to the thoracotomy pain which is one of the main source of the pain after surgery. The surgical appr...