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This paper reports a requirements engineering approach to attribute selection for enhancing the results of a recommendation system. A recommendation system suffers the sparsity problem and the cold start problem with collaborative filtering which are caused by the lack of data. Our method is to introduce more timely information of user preferences to enhance the recommendation results that meet the...
The goal of this research is to use agent simulation in realizing human-machine interaction, so that we can perform different aspects of experiments. The domain that we have chosen is the pedestrian-vehicle interaction in street crossing. The participants of the simulation include pedestrians, vehicles, and traffic lights, which are all represented by agents. The autonomous nature along with individual...
Periodically tapered long-period fiber gratings (LPFGs) are demonstrated by using CO2 laser heating with a cylindrical lens and periodically scanned along the fiber axis on a tensioned standard single-mode fiber. The depth of periodic relief on the fiber surface depends on the writing time as well as the grating period. The LPFG has perfect axial symmetric tapered shape that is helpful for achieving...
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