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Understanding disease progression at the molecular pathway level usually requires capturing both structural dependencies between pathways and the temporal dynamics of disease evolution. In this work, we solve the former challenge by…

Machine Learning · Computer Science 2025-02-11 Dai Shi , Kuan Yan , Lequan Lin , Yue Zeng , Ting Zhang , Dmytro Matsypura , Mark C. Gillies , Ling Zhu , Junbin Gao

Recognizing multiple labels of images is a fundamental but challenging task in computer vision, and remarkable progress has been attained by localizing semantic-aware image regions and predicting their labels with deep convolutional neural…

Computer Vision and Pattern Recognition · Computer Science 2017-12-21 Tianshui Chen , Zhouxia Wang , Guanbin Li , Liang Lin

Recent experiments have shown that training trajectories of multiple deep neural networks with different architectures, optimization algorithms, hyper-parameter settings, and regularization methods evolve on a remarkably low-dimensional…

Machine Learning · Computer Science 2025-11-19 Jialin Mao , Itay Griniasty , Yan Sun , Mark K. Transtrum , James P. Sethna , Pratik Chaudhari

Chaotic dynamics can be effectively studied by continuation from an anti-integrable limit. We use this limit to assign global symbols to orbits and use continuation from the limit to study their bifurcations. We find a bound on the…

chao-dyn · Physics 2007-05-23 D. G. Sterling , H. R. Dullin , J. D. Meiss

Resting-state fMRI has been shown to provide surrogate biomarkers for the analysis of various diseases. In addition, fMRI data helps in understanding the brain's functional working during resting state and task-induced activity. To improve…

Machine Learning · Computer Science 2021-10-11 Dushyant Sahoo , Christos Davatzikos

We propose to use stochastic Riemannian coordinate descent on the orthogonal group for recurrent neural network training. The algorithm rotates successively two columns of the recurrent matrix, an operation that can be efficiently…

Machine Learning · Computer Science 2021-08-03 Estelle Massart , Vinayak Abrol

It is known that the dynamical evolution of a system, from an initial tensor product state of system and environment, to any two later times, t1,t2 (t2>t1), are both completely positive (CP) but in the intermediate times between t1 and t2…

Quantum Physics · Physics 2013-05-07 A. R. Usha Devi , A. K. Rajagopal , Sudha , R. W. Rendell

Large language models can exhibit unexpected behavior in the blink of an eye. In a recent computer use demo, a language model switched from coding to Googling pictures of Yellowstone, and these sudden shifts in behavior have also been…

Machine Learning · Computer Science 2025-06-06 Marvin Li , Aayush Karan , Sitan Chen

We consider stochastic differential equations, obtained by adding weak Gaussian white noise to ordinary differential equations admitting $N$ asymptotically stable periodic orbits. We construct a discrete-time, continuous-space Markov chain,…

Probability · Mathematics 2017-11-06 Manon Baudel , Nils Berglund

Making an informed, correct and quick decision can be life-saving. It's crucial for animals during an escape behaviour or for autonomous cars during driving. The decision can be complex and may involve an assessment of the amount of threats…

Neural and Evolutionary Computing · Computer Science 2018-11-19 Hannes Rapp , Martin Paul Nawrot , Merav Stern

While large-scale pretraining has revolutionized language modeling, its potential remains underexplored in healthcare with structured electronic health records (EHRs). We present RAVEN, a novel generative pretraining strategy for sequential…

As data-driven methods are deployed in real-world settings, the processes that generate the observed data will often react to the decisions of the learner. For example, a data source may have some incentive for the algorithm to provide a…

Machine Learning · Computer Science 2023-04-26 Roy Dong , Heling Zhang , Lillian J. Ratliff

Visual attention is one of the most significant characteristics for selecting and understanding the outside redundancy world. The human vision system cannot process all information simultaneously due to the visual information bottleneck. In…

Computer Vision and Pattern Recognition · Computer Science 2024-11-05 Qiang Li

We propose conditions for the emergence of Turing patterns in a domain that changes in size by homogeneous growth/shrinkage. These conditions to determine the bifurcation are based on considering the geometric change of a potential function…

Pattern Formation and Solitons · Physics 2023-08-25 Aldo Ledesma-Durán

Recent studies of genotype-phenotype (GP) maps have reported universally enhanced phenotypic robustness to genotype mutations, a feature essential to evolution. Virtually all of these studies make a simplifying assumption that each genotype…

Statistical Mechanics · Physics 2025-01-07 Anna Sappington , Vaibhav Mohanty

Molecular quantum magnets adsorbed on surfaces exhibit rich spin and orbital excitations that can be probed by scanning tunneling microscopy with inelastic electron tunneling spectroscopy (STM-IETS). However, the quantitative extraction of…

Mesoscale and Nanoscale Physics · Physics 2026-01-28 Greta Lupi , Adolfo O. Fumega , Mohammad Amini , Robert Drost , Peter Liljeroth , Jose L. Lado

Detection and segmentation of the hippocampal structures in volumetric brain images is a challenging problem in the area of medical imaging. In this paper, we propose a two-stage 3D fully convolutional neural network that efficiently…

Computer Vision and Pattern Recognition · Computer Science 2019-02-13 Dengsheng Chen , Wenxi Liu , You Huang , Tong Tong , Yuanlong Yu

Symbolic dynamics for homoclinic orbits in the two-dimensional symmetric map, $x_{n+1}+cx_{n}+x_{n-1}=3x_{n}^3$, is discussed. Above a critical $c^{\ast}$, the system exhibits a fully-developed horse-shoe so that its global behavior is…

Chaotic Dynamics · Physics 2007-05-23 Zai-Qiao Bai , Wei-Mou Zheng

Exemplar-Free Class Incremental Learning (EFCIL) tackles the problem of training a model on a sequence of tasks without access to past data. Existing state-of-the-art methods represent classes as Gaussian distributions in the feature…

Machine Learning · Computer Science 2024-10-29 Grzegorz Rypeść , Sebastian Cygert , Tomasz Trzciński , Bartłomiej Twardowski

We propose a novel Coupled Hidden Markov Model to detect epileptic seizures in multichannel electroencephalography (EEG) data. Our model defines a network of seizure propagation paths to capture both the temporal and spatial evolution of…

Signal Processing · Electrical Eng. & Systems 2018-08-13 Jeff Craley , Emily Johnson , Archana Venkataraman
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