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Latent variable models are used to estimate variables of interest quantities which are observable only up to some measurement error. In many studies, such variables are known but not precisely quantifiable (such as "job satisfaction" in…

机器学习 · 统计学 2012-10-19 Ricardo Silva

We present a new method of establishing a bijective correspondence - in fact, a lattice isomorphism - between action- and coaction-invariant ideals of C*-algebras and their crossed products by a fixed locally compact group. It is known that…

算子代数 · 数学 2024-06-12 Matthew Gillespie , S. Kaliszewski , John Quigg , Dana P. Williams

We demonstrate how coupling nonlinear dynamical systems can reduce the effects of noise. For simplicity we investigate noisy coupled map lattices. Noise from different lattice nodes can diffuse across the lattice and lower the noise level…

混沌动力学 · 物理学 2015-11-24 Behnam Kia , Sarvenaz Kia , John F. Lindner , Sudeshna Sinha , William L. Ditto

For a complexity class $C$ and language $L$, a constructive separation of $L \notin C$ gives an efficient algorithm (also called a refuter) to find counterexamples (bad inputs) for every $C$-algorithm attempting to decide $L$. We study the…

计算复杂性 · 计算机科学 2024-08-07 Lijie Chen , Ce Jin , Rahul Santhanam , Ryan Williams

The so-called min-sum algorithm has been applied for decoding lattices constructed by Construction D'. We generalize this iterative decoding algorithm to decode lattices constructed by Construction D. An upper bound on the decoding…

密码学与安全 · 计算机科学 2012-01-20 Hassan Mehri

Standard optical potentials use off-resonant laser standing wave induced AC-Stark shift. In a recent development [Phys. Rev. Lett. {\bf 117}, 233001 (2016)] a three-level scheme in $\Lambda$ configuration coupled coherently by resonant…

量子气体 · 物理学 2021-11-24 Piotr Kubala , Jakub Zakrzewski , Mateusz Łącki

We propose a method to substantially improve the signal-to-noise ratio of lattice correlation functions for bosonic operators or other operator combinations with disconnected contributions. The technique is applicable for correlations…

高能物理 - 格点 · 物理学 2022-05-23 Luis Altenkort , Alexander M. Eller , O. Kaczmarek , Lukas Mazur , Guy D. Moore , H. -T. Shu

In this paper, we analyse asymptotically a new class of LDPC codes called Non-binary Hybrid LDPC codes, which has been recently introduced. We use density evolution techniques to derive a stability condition for hybrid LDPC codes, and prove…

信息论 · 计算机科学 2009-09-29 Lucile Sassatelli , David Declercq

We propose a construction of lattices from codes corresponding to lattices of type $A_n$, $D_n$ and $E_n$. This construction is a generalization of construction A of lattices from $p$-ary codes corresponding to a lattice of type $A_{p-1}$.…

数论 · 数学 2025-02-28 Riku Higa

Recently, the mysterious In-Context Learning (ICL) ability exhibited by Transformer architectures, especially in large language models (LLMs), has sparked significant research interest. However, the resilience of Transformers' in-context…

计算与语言 · 计算机科学 2024-05-02 Chen Cheng , Xinzhi Yu , Haodong Wen , Jingsong Sun , Guanzhang Yue , Yihao Zhang , Zeming Wei

Supporting ultra-reliable and low-latency communication (URLLC) is a challenge in current wireless systems. Channel codes that generate large codewords improve reliability but necessitate the use of interleavers, which introduce undesirable…

信息论 · 计算机科学 2023-07-12 Sahar Allahkaram , Francisco A. Monteiro , Ioannis Chatzigeorgiou

We consider the problem of transmitting correlated data after independent encoding to a central receiver through orthogonal channels. We assume that the channel state information is not known at the transmitter. The receiver has access to…

信息论 · 计算机科学 2010-07-07 Arvind Yedla , Henry D. Pfister , Krishna R. Narayanan

A recent line of work on lattice codes for Gaussian wiretap channels introduced a new lattice invariant called secrecy gain as a code design criterion which captures the confusion that lattice coding produces at an eavesdropper. Following…

数论 · 数学 2013-04-17 Fuchun Lin , Frédérique Oggier , Patrick Solé

Ultra-reliable low-latency communication is essential in mission-critical settings, including military applications, where persistent and asymmetric link blockages caused by mobility, jamming, or adversarial attacks can disrupt…

信息论 · 计算机科学 2025-08-26 Mine Gokce Dogan , Abhiram Kadiyala , Jaimin Shah , Martina Cardone , Christina Fragouli

In this paper, we propose a class of linear codes and obtain their weight distribution. Some of these codes are almost optimal. Moreover, several classes of constant composition codes(CCCs) are constructed as subcodes of linear codes.

信息论 · 计算机科学 2017-06-28 Long Yu , Xiusheng Liu

We propose a two-layer coding architecture for communication of multiple users over a shared slotted medium enabling joint collision resolution and decoding. Each user first encodes its information bits with an outer code for reliability,…

信息论 · 计算机科学 2020-08-18 MohammadReza Ebrahimi , Farshad Lahouti , Victoria Kostina

Constant dimension codes (CDCs) have become an important object in coding theory due to their application in random network coding. The multilevel construction is one of the most effective ways to construct constant dimension codes. The…

信息论 · 计算机科学 2025-11-03 Dengming Xu , Mengmeng LI

We investigate iterating the construction of $C^{*}$, the $L$-like inner model constructed using first order logic augmented with the "cofinality $\omega$" quantifier. We first show that $\left(C^{*}\right)^{C^{*}}=C^{*}\ne L$ is…

逻辑 · 数学 2021-09-14 Ur Ya'ar

The dichotomy between noise-stable and (completely) noise-sensitive stochastic models is of recent interest in probability theory. Of particular interest is the study of lattice models coming from statistical physics. The Fourier transform…

高能物理 - 理论 · 物理学 2007-05-23 Gil Kalai

Learning structured representations of visual scenes is currently a major bottleneck to bridging perception with reasoning. While there has been exciting progress with slot-based models, which learn to segment scenes into sets of objects,…