منابع مشابه
Human Speedy
The decision for a cell to self-replicate requires passage from G1 to S phase of the cell cycle and initiation of another round of DNA replication. This commitment is a critical one that is tightly regulated by many parallel pathways. Significantly, these pathways converge to result in activation of the cyclin-dependent kinase, cdk2. It is, therefore, important to understand all the mechanisms ...
متن کاملSpeedy versus Greedy Search
In work on satisficing search, there has been substantial attention devoted to how to solve problems associated with local minima or plateaus in the heuristic function. One technique that has been shown to be quite promising is using an alternative heuristic function that does not estimate cost-to-go, but rather estimates distance-to-go. Empirical results generally favor using the distance-to-g...
متن کاملSpeedy Q-Learning
We introduce a new convergent variant of Q-learning, called speedy Q-learning, in order to address the problem of slow convergence in the standard form of the Q-learning algorithm. We prove a PAC bound on the performance of SQL, which shows that only T = O ( log(1/δ)ǫ(1 − γ) ) steps are required for the SQL algorithm to converge to an ǫ-optimal action-value function with high probability. This ...
متن کاملSpeedy versus sluggish cells
Brain building H ow your brain grows might come down to how your cells divide. Lake and Sokol report that mouse protein Vangl2 controls the asymmetrical cell division and developmental fate of progenitor neurons. Vangl2 (aka Strabismus in fl ies) is a component of the PCP (planar cell polarity) pathway that is active in a variety of tissues and organisms. Mice that lack Vangl2 have a number of ...
متن کاملSpeedy Colorful Subtrees
Fragmentation trees are a technique for identifying molecular formulas and deriving some chemical properties of metabolites small organic molecules solely from mass spectral data. Computing these trees involves nding exact solutions to the NP-hard Maximum Colorful Subtree problem. Existing solvers struggle to solve the large instances involved fast enough to keep up with instrument throughput, ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature Neuroscience
سال: 2010
ISSN: 1097-6256,1546-1726
DOI: 10.1038/nn0410-410