Benzinga looks at defensive stocks with low correlation to SPY S&P 500 ETF Trust and how they might improve your portfolio’s performance.

Communities are an important type of structure in networks. Graph filters, such as wavelet filterbanks, have been used to detect such communities as groups of nodes more densely connected together ...

In satellite remote sensing imaging, factors such as optical axis shift, image plane jitter, movement of the target object, and Earth's rotation can induce image blur. The unavailability of the image ...