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Academy of Mathematics and Systems Science, CAS Colloquia & Seminars：Efficient algorithms for the anisotropic dendritic crystal models
各向异性 树枝状晶体 有效算法
2023/4/14
We consider numerical approximations of the anisotropic phase-field dendritic crystal growth model. This is a highly complex coupled nonlinear system consisting of the anisotropic Allen-Cahn equation,...
A simple and efficient all-optical production of spinor condensates
simple efficient all-optical production spinor condensates
2016/1/23
In the last two decades, many techniques have been devel-oped to reliably generate a Bose-Einstein condensate (BEC)of more than 10 4 atoms. Almost every one of these techniques requires evaporative co...
Efficient Spin Squeezing with Optimized Pulse Sequences
Efficient Spin Squeezing Optimized Pulse Sequences
2016/1/23
Spin squeezed states are a class of entangled states of spins that have practical applications to precision measurements.Inrecentyearsspinsqueezingwithone-axistwisting(OAT)hasbeendemonstratedexperimen...
An Efficient Parallel Algorithm for Accelerating Computational Protein Design
Efficient Parallel Algorithm Accelerating Computational Protein Design
2016/1/22
Given a set P of n uncertain points on the real line, each rep-resented by its one-dimensional probability density function, we consider the problem of building data structures on P to answer range qu...
An Efficient Solution to Locate Sparsely Congested Links
Efficient Solution Locate Sparsely Congested Links
2016/1/22
Locating individual congested links in large scale networks is an important but difficult problem, because of the hardness to directly measure the massive links. Current advantages of network tomograp...
Efficient Algorithms for High-Order Discretizations of the Euler and Navier-Stokes Equations
Efficient Algorithms High-Order Discretizations Euler Navier-Stokes Equations
2015/7/2
Higher order discretizations have not been widely successful in industrial applications to compressible ow simulation. Among several reasons for this, one may identify the lack of tailor-suited, best-...
Increasing Scalability in Algorithms for Centralized and Decentralized Partially Observable Markov Decision Processes: Efficient Decision-Making and Coordination in Uncertain Environments
Artificial Intelligence Decision Theory Game Theory Machine Learning Multiagent Systems Reasoning Under Uncertainty
2014/12/18
As agents are built for ever more complex environments, methods that consider the uncertainty in the system have strong advantages. This uncertainty is common in domains such as robot navigation, medi...
Efficient Representation and Matching of Texts and Images in Scanned Book Collections
Digital libraries Information retrieval Scanned book collections
2014/12/18
Millions of books from public libraries and private collections have been scanned by various organizations in the last decade. The motivation is to preserve the written human heritage in electronic fo...
The temporal and spatial variation in wireless channel conditions, node mobility make it challenging to design protocols for wireless networks. In this thesis, we design efficient routing and scheduli...
Designing Efficient and Accurate Behavior-Aware Mobile Systems
Mobile Systems Behavior awareness App prediction Gesture Recognition Energy efficiency User contexts
2014/12/18
The proliferation of sensors on smartphones, tablets and wearables has led to a plethora of behavior classification algorithms designed to sense various aspects of individual user's behavior such as d...
Reliable and Efficient Multithreading
False Sharing Performance Determinism Multithreading
2014/12/18
The advent of multicore architecture has increased the demand for multithreaded programs. It is notoriously far more challenging to write parallel programs correctly and efficiently than sequential on...
A Novel Reconfiguration Scheme in Quantum-Dot Cellular Automata for Energy Efficient Nanocomputing
Reconfiguration QCA Nanocomputing Wire Crossing QCA Adder
2014/12/8
Quantum-Dot Cellular Automata (QCA) is currently being investigated as an alternative to CMOS technology. There has been extensive study on a wide range of circuits from simple logical circuits such a...
Efficient EM Training of Gaussian Mixtures with Missing Data
Gaussian mixtures missing data EM algorithm imputation.
2012/11/23
In data-mining applications, we are frequently faced with a large fraction of missing entries in the data matrix, which is problematic for most discriminant machine learning algorithms. A solution tha...
AN EFFICIENT ALGORITHM FOR THE CONVEX HULL OF PLANAR SCATTERED POINT SET
Scattered Point Set Minimum Convex Hull Convex Hull Algorithm Initial Boundary of Convex Hull
2014/4/25
Computing the convex hull of a point set is requirement in the GIS applications. This paper studies on the problem of minimum convex hull and presents an improved algorithm for the minimum convex hull...
A novel and efficient algorithm for adaptive filtering: Artificial bee colony algorithm
Artificial bee colony Particle swarm optimization Differential evolution Adaptive filter design Noise cancellation
2011/3/22
The uni-modal error surfaces and intrinsic stable behaviors of adaptive finite impulse response (FIR) filters make gradient based algorithms very effective in the design of these filters. Gradient bas...