Abstract This article constitutes a critique of abstraction as an analytic tool. The argument advances the idea that formalizing practices are indexical; is, way abstractions realized necessarily incorporates features context in which they produced. expression refers to series actions or operations make quantification, rationalization, and standardization possible. Entailed all these procedures...

Most video based action recognition approaches create the video-level representation by temporally pooling the features extracted at each frame. The pooling methods that they adopt, however, usually completely or partially neglect the dynamic information contained in the temporal domain, which may undermine the discriminative power of the resulting video representation since the video sequence ...

OBJECTIVES To determine if video assisted thoracic surgery is associated with better clinical outcomes than thoracotomy for three common procedures: surgery for pneumothorax, minor resections, and lobectomy. DESIGN Systematic review of randomised clinical trials. DATA SOURCES Medline, Embase, Cochrane database of systematic reviews, Cochrane controlled trials register. Reference lists of re...

Real-time video processing applications such as intruder detection system are now in demand and being developed. However, on general purpose computers, it is difficult to guarantee that enough CPU resources can be surely be provided. We have proposed a pseudo real-time video processing library RaVioli for solving this problem. RaVioli conceals two types of resolutions, frame rate and the number...