Above-ground biomass (AGB) is considered an essential climate variable that underpins our knowledge and information about the role of forests in mitigating change. The availability satellite-based AGB change (ΔAGB) products has increased recent years. Here we assessed past decade net ΔAGB derived from four global multi-date maps: ESA-CCI maps, WRI-Flux model, JPL time series, SMOS-LVOD series. ...

In this article, we are interested in understanding the complexity of computing multilinear polynomials using depth four circuits which polynomial computed at every node has a bound on individual degree r ≥ 1 with respect to all its variables (referred as multi- -ic circuits). The goal study is make progress towards proving superpolynomial lower bounds for general polynomials, by better value i...

In this paper, we consider the symmetric multi-type non-negative matrix tri-factorization problem (SNMTF), which attempts to factorize several matrices simultaneously. This can be considered as a generalization of classical and includes non-convex objective function is multivariate sixth degree polynomial has convex feasibility set. It special importance in data science, since it serves mathema...

For an indoor non-directed line of sight optical wireless communication (NLOS-OWC) system we investigate the optimized Lambertian order (OLO) of light-emitting diodes (LEDs). We firstly derive an expression for the OLO from a conventional Lambertian LED model. Then, we analyze the indoor multi-cell NLOS-OWC channel characteristics including the optical power distribution and the multipath time ...

Extensive integration of online and offline channels is often considered the preferable strategy for multi channel retailing. However, empirical findings contradict this assumption and show that retailers choose divergent multi channel strategies. In this paper, we present a model of strategic channel alignment and define four alignment perspectives that can help to reconstruct and interpret de...