the percent of normal precipitation index (pnpi) is a widely used drought index to provide good estimations about the intensity, magnitude and spatial extent of droughts. the objective of this study was analyzing spatial pattern of drought by pnpi index. in this paper, according to the data of 40 stations in iran, during 1967-2009, the pattern of drought hazard is evaluated. influenced zone of ...

In this paper, a general formula of disparity estimation based on Bayesian Maximum A Posteriori (MAP) algorithm is derived and implemented with simplified probabilistic models. The formula is the generalized probabilistic diffusion equation based on Bayesian model, and can be implemented into some different forms corresponding to the probabilistic models in the disparity neighborhood system or ...

In our software-defined radio project we aim at combining two standards: Bluetooth and HiperLAN/2. The HiperLAN/2 receiver requires the most computation power in comparison with Bluetooth. We choose to use this computational power also for Bluetooth and look for more advanced demodulation algorithms such as a Maximum A posteriori Probability (MAP) receiver. This paper discusses a simplified MAP...

We consider the following map labelling problem: given distinct points p,p, . . . ,pn in the plane, and given σ, find a maximum cardinality set of pairwise disjoint axis-parallel σ× σ squares Q1, Q2, . . . , Qr. This problem reduces to that of finding a maximum cardinality independent set in an associated graph called the conflict graph. We describe several heuristics for the maximum cardinalit...

Personalization has become a predominant theme in online advertising; the internet allows advertisers to target only those users with the greatest chances of engagement, maximizing the probability of success and user happiness. However, a näıve approach to matching users with their most suitable content scales proportionally to the product of the cardinalities of the user and content sets. For ...

Cycle time minimization is one of the major goals to achieve in manufacturing. Maximizing feedrate direct solution; however, physical motions need be under specified motion limits avoid high-frequency vibration, causing machining error. In this paper, a time-optimal scheduling approach with corner smoothing for 5-axis G1 toolpaths presented machining. One key feature proposed method describe or...

In this paper we show how a discriminative objective function such as Maximum Mutual Information (MMI) can be combined with a prior distribution over the HMM parameters to give a discriminative Maximum A Posteriori (MAP) estimate for HMM training. The prior distribution can be based around the Maximum Likelihood (ML) parameter estimates, leading to a technique previously referred to as I-smooth...