Exact Hessian Matrix Calculation for Complex-Valued Neural Networks. - Calin-Adrian Popa (SOFA (1), 2014)

Enhanced Gradient Descent Algorithms for Complex-Valued Neural Networks. - Calin-Adrian Popa (SYNASC, 2014)

Averaging on Manifolds by Embedding Algorithm. - Petre Birtea; Dan Comanescu; Calin-Adrian Popa (J. Math. Imaging Vis., 2014)

Conjugate Gradient Algorithms for Complex-Valued Neural Networks. - Calin-Adrian Popa (ICONIP (2), 2015)

Quasi-Newton learning methods for complex-valued neural networks. - Calin-Adrian Popa (IJCNN, 2015)

Lie algebra-valued neural networks. - Calin-Adrian Popa (IJCNN, 2015)

Scaled Conjugate Gradient Learning for Complex-Valued Neural Networks. - Calin-Adrian Popa (MENDEL, 2015)

Matrix-Valued Neural Networks. - Calin-Adrian Popa (MENDEL, 2015)

Lie Algebra-Valued Hopfield Neural Networks. - Calin-Adrian Popa (SYNASC, 2015)

Octonion-Valued Neural Networks. - Calin-Adrian Popa (ICANN (1), 2016)

Scaled Conjugate Gradient Learning for Quaternion-Valued Neural Networks. - Calin-Adrian Popa (ICONIP (3), 2016)

Matrix-Valued Hopfield Neural Networks. - Calin-Adrian Popa (ISNN, 2016)

Matrix-Valued Bidirectional Associative Memories. - Calin-Adrian Popa (SOFA (2), 2016)

Enhanced Gradient Descent Algorithms for Quaternion-Valued Neural Networks. - Calin-Adrian Popa (SOFA (2), 2016)

Levenberg-Marquardt Learning Algorithm for Quaternion-Valued Neural Networks. - Calin-Adrian Popa (SYNASC, 2016)

Exponential Stability of Matrix-Valued BAM Neural Networks with Time-Varying Delays. - Calin-Adrian Popa (ICONIP (3), 2017)

Asymptotic Stability of Delayed Octonion-Valued Neural Networks with Leakage Delay. - Calin-Adrian Popa (ICONIP (3), 2017)

Octonion-valued bidirectional associative memories. - Calin-Adrian Popa (IJCNN, 2017)

Complex-valued convolutional neural networks for real-valued image classification. - Calin-Adrian Popa (IJCNN, 2017)

Global asymptotic stability for matrix-valued recurrent neural networks with time delays. - Calin-Adrian Popa (IJCNN, 2017)

Global Exponential Stability for Matrix-Valued Neural Networks with Time Delay. - Calin-Adrian Popa (ISNN (1), 2017)

Global Asymptotic Stability for Octonion-Valued Neural Networks with Delay. - Calin-Adrian Popa (ISNN (1), 2017)

Quasi-Newton Learning Methods for Quaternion-Valued Neural Networks. - Calin-Adrian Popa (IWANN (1), 2017)

Exponential Stability for Delayed Octonion-Valued Recurrent Neural Networks. - Calin-Adrian Popa (IWANN (1), 2017)

Deep Hybrid Real-Complex-Valued Convolutional Neural Networks for Image Classification. - Calin-Adrian Popa (IJCNN, 2018)

Complex-Valued Deep Boltzmann Machines. - Calin-Adrian Popa (IJCNN, 2018)

Complex-Valued Stacked Denoising Autoencoders. - Calin-Adrian Popa (ISNN, 2018)

Complex-Valued Deep Belief Networks. - Calin-Adrian Popa (ISNN, 2018)

Fourier Transform-Based Image Classification Using Complex-Valued Convolutional Neural Networks. - Calin-Adrian Popa; Cosmin Cernazanu-Glavan (ISNN, 2018)

Global exponential stability of neutral-type octonion-valued neural networks with time-varying delays. - Calin-Adrian Popa (Neurocomputing, 2018)

Global exponential stability of octonion-valued neural networks with leakage delay and mixed delays. - Calin-Adrian Popa (Neural Networks, 2018)

Multistability and multiperiodicity in impulsive hybrid quaternion-valued neural networks with mixed delays. - Calin-Adrian Popa; Eva Kaslik (Neural Networks, 2018)

Learning Algorithms for Quaternion-Valued Neural Networks. - Calin-Adrian Popa (Neural Process. Lett., 2018)

Global µ-stability of neutral-type impulsive complex-valued BAM neural networks with leakage delay and unbounded time-varying delays. - Calin-Adrian Popa (Neurocomputing, 2020)

Dissipativity of impulsive matrix-valued neural networks with leakage delay and mixed delays. - Calin-Adrian Popa (Neurocomputing, 2020)

Mittag-Leffler stability and synchronization of neutral-type fractional-order neural networks with leakage delay and mixed delays. - Calin-Adrian Popa (J. Frankl. Inst., 2023)

MambaDepth: Enhancing Long-range Dependency for Self-Supervised Fine-Structured Monocular Depth Estimation. - Ionut Grigore; Calin-Adrian Popa (CoRR, 2024)

XAMI - A Benchmark Dataset for Artefact Detection in XMM-Newton Optical Images. - Elisabeta-Iulia Dima; Pablo Gómez; Sandor Kruk; Peter Kretschmar; Simon Rosen; Calin-Adrian Popa (CoRR, 2024)

Stability and synchronization of octonion-valued neural networks with leakage and mixed delays on time scales. - Calin-Adrian Popa (Comput. Appl. Math., 2024)

Heavy and Lightweight Deep Learning Models for Semantic Segmentation: A Survey. - Cristina Carunta; Alina Carunta; Calin-Adrian Popa (IEEE Access, 2025)

FPC-Net: Revisiting SuperPoint with Descriptor-Free Keypoint Detection via Feature Pyramids and Consistency-Based Implicit Matching. - Ionut Grigore; Calin-Adrian Popa; Claudiu Leoveanu-Condrei (CoRR, 2025)