Given a directed graphical model with binary-valued hidden nodes and real-valued noisy observations, consider deciding upon the maximum a-posteriori (MAP) or the maximum posterior-marginal (MPM) assignment under the r...
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ISBN:
(纸本)9780262232531
Given a directed graphical model with binary-valued hidden nodes and real-valued noisy observations, consider deciding upon the maximum a-posteriori (MAP) or the maximum posterior-marginal (MPM) assignment under the restriction that each node broadcasts only to its children exactly one single-bit message. We present a variational formulation, viewing the processing rules local to all nodes as degrees-of-freedom, that minimizes the loss in expected (MAP or MPM) performance subject to such online communication constraints. The approach leads to a novel message-passing algorithm to be executed offline, or before observations are realized, which mitigates the performance loss by iteratively coupling all rules in a manner implicitly driven by global statistics. We also provide (i) illustrative examples, (ii) assumptions that guarantee convergence and efficiency and (iii) connections to active research areas.
With high-speed space optical crosslinks, an optical satellite network as part of a larger integrated space-terrestrial network is now feasible. This radical technology building block can have profound transforming ef...
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Strain is used in mainstream CMOS production to enhance device performance at the 90 nm node. Strained Si and novel material implementations in fully depleted silicon-on-insulator and multi-gate configurations are of ...
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Strain is used in mainstream CMOS production to enhance device performance at the 90 nm node. Strained Si and novel material implementations in fully depleted silicon-on-insulator and multi-gate configurations are of interest for sub-45-nm applications where there is a need to improve electron and hole mobilities while also providing the electrostatic control necessary for continued geometric device scaling. Implementations of strained Si and strained heterostructures on insulator are reviewed. The Ge-free strained silicon directly on insulator structure has good thermal stability, high electron mobility and improved hole mobilities in particular at low vertical effective electrical fields. In addition, such wafers can readily be incorporated in existing fully or partially depleted silicon on insulator processes. Strained Si/strained SiGe/strained Si heterostructures on insulator provide higher hole mobilities. Simultaneous electron and hole mobility enhancements of 2X at all effective fields are demonstrated in fully-depleted heterostructure on insulator MOSFETs. Thermal budget constraints for processing such devices, particularly with respect to Ge diffusion, are discussed.
Durch Proteasen ausgelöste Nanopartikelselbstorganisation diente zum Aufbau multimerer Assoziate mit neuen Eigenschaften. In ihrer Zuschrift auf S. 3233 ff. zeigen S. N. Bhatia et al., dass das Binden komplement&...
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Durch Proteasen ausgelöste Nanopartikelselbstorganisation diente zum Aufbau multimerer Assoziate mit neuen Eigenschaften. In ihrer Zuschrift auf S. 3233 ff. zeigen S. N. Bhatia et al., dass das Binden komplementärer Fe 3 O 4 ‐Nanopartikel durch das Anbinden von Polymeren inhibiert wird. Das Nanopartikel bleibt in seinem “Ruhezustand”, bis eine Protease seine Selbstorganisation auslöst.
The two main difficulties in using potential flow solvers in aircraft design are the limitations on the number of discretization elements and the user expertise and effort required to specify the wake location. In the...
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We propose a balanced tree structure overlay on a peer-to-peer network capable of supporting both exact queries and range queries efficiently. In spite of the tree structure causing distinctions to be made between nod...
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ISBN:
(纸本)1595931546
We propose a balanced tree structure overlay on a peer-to-peer network capable of supporting both exact queries and range queries efficiently. In spite of the tree structure causing distinctions to be made between nodes at different levels in the tree, we show that the load at each node is approximately equal. In spite of the tree structure providing precisely one path between any pair of nodes, we show that sideways routing tables maintained at each node provide sufficient fault tolerance to permit efficient repair. Specifically, in a network with N nodes, we guarantee that both exact queries and range queries can be answered in O(logN) steps and also that update operations (to both data and network) have an amortized cost of O(logN). An experimental assessment validates the practicality of our proposal.
Sterically shielded …︁ …︁ nanoparticles diffuse freely in solution and biological fluids until proteases expressed by cancer cells trigger them to self-assemble. In their Communication on page 3161ff., S. N. Bhatia ...
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Sterically shielded …︁ …︁ nanoparticles diffuse freely in solution and biological fluids until proteases expressed by cancer cells trigger them to self-assemble. In their Communication on page 3161ff., S. N. Bhatia and co-workers show that complimentary Fe 3 O 4 nanoparticle binding is inhibited by the attachment of protease-cleavable polymers. Cleavage of these polymers triggers “latent” nanoparticles to form multimeric assemblies with emergent properties.
We study the fundamental limits of disturbance attenuation of a networked control scheme, where a remote preview of the disturbance is available. The preview information is conveyed to the controller, via an encoder a...
Micro-fabricated devices are increasingly being used to interface with biological samples. Protein patterning is an essential component to this interface, allowing the device to specifically interact with target prote...
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