Results 51 to 60 of about 1,003,970 (287)
A quantum algorithm for additive approximation of Ising partition functions
, 2014 We investigate quantum computational complexity of calculating partition functions of Ising models. We construct a quantum algorithm for an additive approximation of Ising partition functions on square lattices.
Fujii, Keisuke +2 more
core +1 more source
Playing Games with Approximation Algorithms
SIAM Journal on Computing, 2007 In an online linear optimization problem, on each period $t$, an online algorithm chooses $s_t\in\mathcal{S}$ from a fixed (possibly infinite) set $\mathcal{S}$ of feasible decisions. Nature (who may be adversarial) chooses a weight vector $w_t\in\mathbb{R}^n$, and the algorithm incurs cost $c(s_t,w_t)$, where $c$ is a fixed cost function that is ...
Sham M. Kakade +2 more
openaire +3 more sources
Molecular Oncology, EarlyView.This work identified serum proteins associated with pancreatic epithelial neoplasms (PanINs) and early‐stage PDAC. Proteomics screens assessed genetically engineered mice with abundant PanINs, KPC mice (Lox‐STOP‐Lox‐KrasG12D/+ Lox‐STOP‐Lox‐Trp53R172H/+ Pdx1‐Cre) before PDAC development and also early‐stage PDAC patients (n = 31), compared to benign ...
Hannah Mearns +10 more
wiley +1 more source
Rounding in ¿-approximation algorithms
2006 Symposium on Communications and Vehicular Technology, 2006 A common approach to deal with NP-hard problems is to deploy polynomial-time ϵ-approximation algorithms. These algorithms often resort to rounding and scaling to guarantee a solution that is within a factor (1 + isin) of the optimal solution. Usually, researchers either only round up or only down.
openaire +4 more sources
Molecular Oncology, EarlyView.Aldehyde dehydrogenase 1A1 (ALDH1A1) is a cancer stem cell marker in several malignancies. We established a novel epithelial cell line from rectal adenocarcinoma with unique overexpression of this enzyme. Genetic attenuation of ALDH1A1 led to increased invasive capacity and metastatic potential, the inhibition of proliferation activity, and ultimately ...
Martina Poturnajova +25 more
wiley +1 more source
Trajectory Planning for Reconnaissance Mission Based on Fair-Energy UAVs Cooperation
IEEE Access, 2019 Unmanned aerial vehicles (UAVs) have recently received growing popularity in reconnaissance missions due to their many advantages, such as high mobility, flexible deployment, and low operational costs.
Zhen Qin +5 more
doaj +1 more source
Molecular Oncology, EarlyView.Tumors contain diverse cellular states whose behavior is shaped by context‐dependent gene coordination. By comparing gene–gene relationships across biological contexts, we identify adaptive transcriptional modules that reorganize into distinct vulnerability axes.
Brian Nelson +9 more
wiley +1 more source
On Efficient Deployment of Wireless Sensors for Coverage and Connectivity in Constrained 3D Space
Sensors, 2017 Sensor networks have been used in a rapidly increasing number of applications in many fields. This work generalizes a sensor deployment problem to place a minimum set of wireless sensors at candidate locations in constrained 3D space to k-cover a given ...
Chase Q. Wu, Li Wang
doaj +1 more source
Nonparametric Approximation Strategy Iteration Parallel Reinforcement Learning Algorithm [PDF]
Jisuanji gongcheng, 2018 To solve the problem of slow convergence speed of the online approximation strategy iteration reinforcement learning algorithm,a nonparametric approximation strategy iteration parallel reinforcement learning algorithm is proposed.The number of parallel ...
JI Ting,ZHANG Hua
doaj +1 more source