1 code implementation • 20 Dec 2024 • Elifnur Sunger, Yunus Bicer, Deniz Erdogmus, Tales Imbiriba
To the best of our knowledge, this is the first work to formulate the RSVP typing task as a POMDP for recursive classification.
no code implementations • 11 Dec 2024 • Paul Ghanem, Ahmet Demirkaya, Tales Imbiriba, Alireza Ramezani, Zachary Danziger, Deniz Erdogmus
Learning dynamics governing physical and spatiotemporal processes is a challenging problem, especially in scenarios where states are partially measured.
no code implementations • 29 Sep 2024 • Ashutosh Singh, Ashish Singh, Tales Imbiriba, Deniz Erdogmus, Ricardo Borsoi
Furthermore they lack a systematic data-driven approach to perform data assimilation, that is, exploiting noisy measurements on the fly in the forecasting task.
no code implementations • 29 May 2024 • Michael Potter, Shuo Tang, Paul Ghanem, Milica Stojanovic, Pau Closas, Murat Akcakaya, Ben Wright, Marius Necsoiu, Deniz Erdogmus, Michael Everett, Tales Imbiriba
Continuously optimizing sensor placement is essential for precise target localization in various military and civilian applications.
1 code implementation • 28 Feb 2024 • Michael Potter, Murat Akcakaya, Marius Necsoiu, Gunar Schirner, Deniz Erdogmus, Tales Imbiriba
To address this, we propose a fully Bayesian RATR framework employing Optimal Bayesian Fusion (OBF) to aggregate classification probability vectors from multiple radars.
no code implementations • 24 Feb 2024 • Ashutosh Singh, Ricardo Augusto Borsoi, Deniz Erdogmus, Tales Imbiriba
The proposed framework is capable of producing fast and accurate predictions over long time horizons, dealing with irregularly sampled noisy measurements to correct the solution, and benefits from the decoupling between the spatial and temporal dynamics of this class of PDEs.
no code implementations • 20 Nov 2023 • Elifnur Sunger, Beyza Kalkanli, Veysi Yildiz, Tales Imbiriba, Peter Campbell, Deniz Erdogmus
This paper presents a Tubular Curvature Filter method that locally calculates the acceleration of bundles of curves that traverse along the tubular object parallel to the centerline.
1 code implementation • 30 Oct 2023 • Niklas Smedemark-Margulies, Yunus Bicer, Elifnur Sunger, Tales Imbiriba, Eugene Tunik, Deniz Erdogmus, Mathew Yarossi, Robin Walters
New subjects only demonstrate the single component gestures and we seek to extrapolate from these to all possible single or combination gestures.
no code implementations • 12 Oct 2023 • Niklas Smedemark-Margulies, Ye Wang, Toshiaki Koike-Akino, Jing Liu, Kieran Parsons, Yunus Bicer, Deniz Erdogmus
Classification models for electroencephalogram (EEG) data show a large decrease in performance when evaluated on unseen test sub jects.
no code implementations • 13 Jul 2023 • Richard Gall, Deniz Kocanaogullari, Murat Akcakaya, Deniz Erdogmus, Rajkumar Kubendran
In this paper, we propose a hybrid convolutional neural network-spiking neural network (CNN-SNN) corticomorphic architecture, inspired by the auditory cortex, which uses EEG data along with multi-speaker speech envelopes to successfully decode auditory attention with low latency down to 1 second, using only 8 EEG electrodes strategically placed close to the auditory cortex, at a significantly higher accuracy of 91. 03%, compared to the state-of-the-art.
no code implementations • 29 Jun 2023 • Connor Mclaughlin, Matthew Ding, Deniz Erdogmus, Lili Su
Fast and reliable state estimation and tracking are essential for real-time situation awareness in Cyber-Physical Systems (CPS) operating in tactical environments or complicated civilian environments.
1 code implementation • 6 Jan 2023 • Haoqing Li, Bhavya Duvvuri, Ricardo Borsoi, Tales Imbiriba, Edward Beighley, Deniz Erdogmus, Pau Closas
To evaluate the proposed methodology we consider a water mapping task where real data acquired by the Landsat and MODIS instruments are fused generating high spatial-temporal resolution image estimates.
1 code implementation • 4 Jan 2023 • Helena Calatrava, Bhavya Duvvuri, Haoqing Li, Ricardo Borsoi, Edward Beighley, Deniz Erdogmus, Pau Closas, Tales Imbiriba
Specifically, balanced classification accuracy improves by up to 26. 95% for SIC, 12. 4% for GMM, and 13. 81% for LR in water mapping, and by 15. 25%, 14. 17%, and 14. 7% in deforestation detection.
no code implementations • 13 Nov 2022 • Ashutosh Singh, Ashish Singh, Aria Masoomi, Tales Imbiriba, Erik Learned-Miller, Deniz Erdogmus
Subspace clustering algorithms are used for understanding the cluster structure that explains the dataset well.
1 code implementation • 29 Oct 2022 • Niklas Smedemark-Margulies, Basak Celik, Tales Imbiriba, Aziz Kocanaogullari, Deniz Erdogmus
We study the problem of inferring user intent from noninvasive electroencephalography (EEG) to restore communication for people with severe speech and physical impairments (SSPI).
no code implementations • 12 May 2022 • Nasim Soltani, Hai Cheng, Mauro Belgiovine, Yanyu Li, Haoqing Li, Bahar Azari, Salvatore D'Oro, Tales Imbiriba, Tommaso Melodia, Pau Closas, Yanzhi Wang, Deniz Erdogmus, Kaushik Chowdhury
Here, ML blocks replace the individual processing blocks of an OFDM receiver, and we specifically describe this swapping for the legacy channel estimation, symbol demapping, and decoding blocks with Neural Networks (NNs).
1 code implementation • 2 May 2022 • Razieh Faghihpirayesh, Davood Karimi, Deniz Erdogmus, Ali Gholipour
Fast and accurate segmentation of the fetal brain on fetal MRI is required to achieve real-time fetal head pose estimation and motion tracking for slice re-acquisition and steering.
no code implementations • 26 Apr 2022 • Haoqing Li, Bhavia Duvviri, Ricardo Borsoi, Tales Imbiriba, Edward Beighley, Deniz Erdogmus, Pau Closas
Satellite imaging has a central role in monitoring, detecting and estimating the intensity of key natural phenomena.
no code implementations • 17 Dec 2021 • Niklas Smedemark-Margulies, Ye Wang, Toshiaki Koike-Akino, Deniz Erdogmus
We provide a regularization framework for subject transfer learning in which we seek to train an encoder and classifier to minimize classification loss, subject to a penalty measuring independence between the latent representation and the subject label.
no code implementations • 24 Oct 2021 • Ashutosh Singh, Christiana Westlin, Hedwig Eisenbarth, Elizabeth A. Reynolds Losin, Jessica R. Andrews-Hanna, Tor D. Wager, Ajay B. Satpute, Lisa Feldman Barrett, Dana H. Brooks, Deniz Erdogmus
For the last several decades, emotion research has attempted to identify a "biomarker" or consistent pattern of brain activity to characterize a single category of emotion (e. g., fear) that will remain consistent across all instances of that category, regardless of individual and context.
no code implementations • 12 Oct 2021 • Ahmet Demirkaya, Tales Imbiriba, Kyle Lockwood, Sumientra Rampersad, Elie Alhajjar, Giovanna Guidoboni, Zachary Danziger, Deniz Erdogmus
Results demonstrate that state dynamics corresponding to the missing ODEs can be approximated well using a neural network trained using a recursive Bayesian filtering approach in a fashion coupled with the known state dynamic differential equations.
no code implementations • 3 Oct 2021 • Paul Ghanem, Yunus Bicer, Deniz Erdogmus, Alireza Ramezani
We use Algorithmic Differentiation (AD) and Bayesian filters computed with cubature rules conjointly to quickly estimate complex fluid-structure interactions.
no code implementations • 26 Jul 2021 • Bahar Azari, Deniz Erdogmus
Despite the vast success of standard planar convolutional neural networks, they are not the most efficient choice for analyzing signals that lie on an arbitrarily curved manifold, such as a cylinder.
no code implementations • 16 Jun 2021 • Andac Demir, Toshiaki Koike-Akino, Ye Wang, Masaki Haruna, Deniz Erdogmus
Convolutional neural networks (CNN) have been frequently used to extract subject-invariant features from electroencephalogram (EEG) for classification tasks.
no code implementations • 4 May 2021 • Berkan Kadioglu, Peng Tian, Jennifer Dy, Deniz Erdogmus, Stratis Ioannidis
We consider a rank regression setting, in which a dataset of $N$ samples with features in $\mathbb{R}^d$ is ranked by an oracle via $M$ pairwise comparisons.
1 code implementation • 1 May 2021 • Ozan Ozdenizci, Deniz Erdogmus
We present a dimensionality reduction network (MMINet) training procedure based on the stochastic estimate of the mutual information gradient.
1 code implementation • 26 Apr 2021 • Mohammadreza Sharif, Deniz Erdogmus, Christopher Amato, Taskin Padir
State-of-the-art human-in-the-loop robot grasping is hugely suffered by Electromyography (EMG) inference robustness issues.
no code implementations • 19 Apr 2021 • Mo Han, Mehrshad Zandigohar, Sezen Yagmur Gunay, Gunar Schirner, Deniz Erdogmus
We collected and utilized data from large gesture vocabularies with multiple dynamic actions to encode the transitions from one grasp intent to another based on common sequences of the grasp movements.
no code implementations • 8 Apr 2021 • Mehrshad Zandigohar, Mo Han, Mohammadreza Sharif, Sezen Yagmur Gunay, Mariusz P. Furmanek, Mathew Yarossi, Paolo Bonato, Cagdas Onal, Taskin Padir, Deniz Erdogmus, Gunar Schirner
Conclusion: Our experimental data analyses demonstrate that EMG and visual evidence show complementary strengths, and as a consequence, fusion of multimodal evidence can outperform each individual evidence modality at any given time.
no code implementations • 17 Feb 2021 • Ozan Ozdenizci, Safaa Eldeeb, Andac Demir, Deniz Erdogmus, Murat Akcakaya
Multiple cortical brain regions are known to be responsible for sensory recognition, perception and motor execution during sensorimotor processing.
no code implementations • 16 Feb 2021 • Ozan Ozdenizci, Deniz Erdogmus
Recent promises of generative deep learning lately brought interest to its potential uses in neural engineering.
no code implementations • 13 Jan 2021 • Mehrshad Zandigohar, Mo Han, Deniz Erdogmus, Gunar Schirner
For lower arm amputees, prosthetic hands promise to restore most of physical interaction capabilities.
no code implementations • 13 Jan 2021 • Mehrshad Zandigohar, Deniz Erdogmus, Gunar Schirner
Deep Learning plays a significant role in assisting humans in many aspects of their lives.
no code implementations • 28 Sep 2020 • Mo Han, Ozan Ozdenizci, Toshiaki Koike-Akino, Ye Wang, Deniz Erdogmus
Human computer interaction (HCI) involves a multidisciplinary fusion of technologies, through which the control of external devices could be achieved by monitoring physiological status of users.
no code implementations • 26 Aug 2020 • Mo Han, Ozan Ozdenizci, Ye Wang, Toshiaki Koike-Akino, Deniz Erdogmus
Recent developments in biosignal processing have enabled users to exploit their physiological status for manipulating devices in a reliable and safe manner.
no code implementations • 30 Jul 2020 • Aziz Kocanaogullari, Murat Akcakaya, Deniz Erdogmus
In this paper, we propose a geometric interpretation over the state posterior progression and accordingly we provide a point-by-point analysis over the disadvantages of using such conventional termination criteria.
no code implementations • 2 Jul 2020 • Andac Demir, Toshiaki Koike-Akino, Ye Wang, Deniz Erdogmus
Learning data representations that capture task-related features, but are invariant to nuisance variations remains a key challenge in machine learning.
no code implementations • 15 Apr 2020 • Mo Han, Ozan Ozdenizci, Ye Wang, Toshiaki Koike-Akino, Deniz Erdogmus
Recent developments in wearable sensors demonstrate promising results for monitoring physiological status in effective and comfortable ways.
no code implementations • 7 Apr 2020 • Yeganeh M. Marghi, Aziz Kocanaogullari, Murat Akcakaya, Deniz Erdogmus
The proposed active RBI framework is applied to the trajectory of the posterior changes in the probability simplex that provides a coordinated active querying and decision making with specified confidence.
no code implementations • 22 Jul 2019 • Ozan Ozdenizci, Barry Oken, Tab Memmott, Melanie Fried-Oken, Deniz Erdogmus
Across- and within-recording variabilities in electroencephalographic (EEG) activity is a major limitation in EEG-based brain-computer interfaces (BCIs).
no code implementations • 28 Mar 2019 • Ozan Ozdenizci, Deniz Erdogmus
Objective: A variety of pattern analysis techniques for model training in brain interfaces exploit neural feature dimensionality reduction based on feature ranking and selection heuristics.
no code implementations • 27 Mar 2019 • Ozan Ozdenizci, Ye Wang, Toshiaki Koike-Akino, Deniz Erdogmus
Deep learning methods for person identification based on electroencephalographic (EEG) brain activity encounters the problem of exploiting the temporally correlated structures or recording session specific variability within EEG.
1 code implementation • 18 Jan 2019 • Yuan Guo, Jennifer Dy, Deniz Erdogmus, Jayashree Kalpathy-Cramer, Susan Ostmo, J. Peter Campbell, Michael F. Chiang, Stratis Ioannidis
Pairwise comparison labels are more informative and less variable than class labels, but generating them poses a challenge: their number grows quadratically in the dataset size.
no code implementations • 17 Dec 2018 • Ozan Ozdenizci, Ye Wang, Toshiaki Koike-Akino, Deniz Erdogmus
We introduce adversarial neural networks for representation learning as a novel approach to transfer learning in brain-computer interfaces (BCIs).
1 code implementation • ICLR 2019 • Kaidi Xu, Sijia Liu, Pu Zhao, Pin-Yu Chen, huan zhang, Quanfu Fan, Deniz Erdogmus, Yanzhi Wang, Xue Lin
When generating adversarial examples to attack deep neural networks (DNNs), Lp norm of the added perturbation is usually used to measure the similarity between original image and adversarial example.
no code implementations • 21 May 2018 • Ye Wang, Toshiaki Koike-Akino, Deniz Erdogmus
In this method, an adversarial network attempts to recover the nuisance variable from the representation, which the VAE is trained to prevent.
no code implementations • 28 Mar 2018 • Seyed Raein Hashemi, Seyed Sadegh Mohseni Salehi, Deniz Erdogmus, Sanjay P. Prabhu, Simon K. Warfield, Ali Gholipour
One of the major challenges in training such networks raises when data is unbalanced, which is common in many medical imaging applications such as lesion segmentation where lesion class voxels are often much lower in numbers than non-lesion voxels.
no code implementations • 15 Mar 2018 • Seyed Sadegh Mohseni Salehi, Shadab Khan, Deniz Erdogmus, Ali Gholipour
Our results show that in such registration applications that are amendable to learning, the proposed deep learning methods with geodesic loss minimization can achieve accurate results with a wide capture range in real-time (<100ms).
1 code implementation • 25 Oct 2017 • Seyed Sadegh Mohseni Salehi, Seyed Raein Hashemi, Clemente Velasco-Annis, Abdelhakim Ouaalam, Judy A. Estroff, Deniz Erdogmus, Simon K. Warfield, Ali Gholipour
We aimed to develop a fully automatic segmentation method that independently segments sections of the fetal brain in 2D fetal MRI slices in real-time.
2 code implementations • 18 Jun 2017 • Seyed Sadegh Mohseni Salehi, Deniz Erdogmus, Ali Gholipour
One of the main challenges in training these networks is data imbalance, which is particularly problematic in medical imaging applications such as lesion segmentation where the number of lesion voxels is often much lower than the number of non-lesion voxels.
no code implementations • 6 Mar 2017 • Seyed Sadegh Mohseni Salehi, Deniz Erdogmus, Ali Gholipour
Brain extraction or whole brain segmentation is an important first step in many of the neuroimage analysis pipelines.
no code implementations • 27 May 2016 • Jamshid Sourati, Murat Akcakaya, Todd K. Leen, Deniz Erdogmus, Jennifer G. Dy
In particular, we show that FIR can be asymptotically viewed as an upper bound of the expected variance of the log-likelihood ratio.
no code implementations • 6 Apr 2016 • Jonas Nordhaug Myhre, Matineh Shaker, Devrim Kaba, Robert Jenssen, Deniz Erdogmus
Research on manifold learning within a density ridge estimation framework has shown great potential in recent work for both estimation and de-noising of manifolds, building on the intuitive and well-defined notion of principal curves and surfaces.