Nowadays, as the number of items is increasing and that users have access to limited, user-item preference matrices in recommendation systems are always sparse. This leads a data sparsity problem. The latent factor analysis (LFA) model has been proposed solution As basis LFA model, singular value decomposition (SVD) especially biased SVD great effects high-dimensional sparse (HiDs) matrices. Ho...

The photovoltaic (PV) technology has been increasingly used in our energy generation. Therefore, it is essential to have a good PV testing facility during the development process. emulator (PVE) voltage or current source that mimic current-voltage characteristic as module requires proper control strategy work. resistance feedback method (RFM) many attributes, except transient response, which ca...

The phenomenon “bufferbloat” occurs when the buffers of network intermediary nodes fill up, causing long queuing delays. This has a significant negative impact on quality service applications, particularly those that are sensitive to time delay. Many active queue management (AQM) algorithms have been proposed overcome this problem. Those AQMs attempt maintain minimal delays and good throughput ...