منابع مشابه
Beyond the Runs Theorem
In [2], a short and elegant proof was presented showing that a binary word of length n contains at most n − 3 runs. Here we show, using the same technique and a computer search, that the number of runs in a binary word of length n is at most 22 23 n < 0.957n.
متن کاملAir pollution and life expectancy in China and beyond.
In PNAS, Chen et al. (1) present findings that implicate long-term exposure to air pollution as contributing to enormous loss of life expectancy (LE) in China. These results are based on a clever quasiexperimental, regression discontinuity design exploiting a Chinese policy that provided free coal for heating in cities north of the Huai River, but not in the south. A spatial discontinuity for p...
متن کاملWhen Short Runs Beat Long Runs
What will yield the best results: doing one run n generations long or doing m runs n/m generations long each? This paper presents a techniqueindependent analysis which answers this question, and has direct applicability to scheduling and restart theory in evolutionary computation and other stochastic methods. The paper then applies this technique to three problem domains in genetic programming....
متن کاملRepo Runs
This paper develops a model of financial institutions that borrow shortterm and invest into long-term marketable assets. Because these financial intermediaries perform maturity transformation, they are subject to potential runs. We endogenize the profits of such intermediaries and derive distinct liquidity and collateral conditions that determine whether a run can be prevented. We examine the m...
متن کاملMaking the DDA Run: Two-Dimensional Ray Traversal Using Runs and Runs of Runs
Iterative algorithms based on runs and runs of runs are presented to calculate the cells of the two–dimensional lattice intersected by a line of real slope and intercept. The technique is applied to the problem of traversing a ray through a two–dimensional grid. Using runs or runs of runs provides a significant improvement in the efficiency of ray traversal for all but very short path lengths w...
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ژورنال
عنوان ژورنال: Journal of Sports Analytics
سال: 2015
ISSN: 2215-020X,2215-0218
DOI: 10.3233/jsa-140001