2020
- N. Passalis, A.Tefas, J. Kanniainen, and A.Iosifidis, "Temporal logistic neural Bag-of-Features for financial time series forecasting leveraging limit order book data", Pattern Recognition Letters, pp 183-189, 2020.
- F. Laakom, N. Passalis, J. Raitoharju, J. Nikkanen, A.Tefas, A.Iosifidis and , "Bag of Color Features for Color Constancy", IEEE Transactions on Image Process, pp 7722-7734, 2020.
- A. Tsantekidis, N. Passalis, A.Tefas, J. Kanniainen, and A.Iosifidis, "Using Deep Learning for price prediction by exploiting stationary limit order book features", Applied Soft Computing, 2020.
- N. Passalis, M. Tzelepi and A.Tefas, "Probabilistic Knowledge Transfer for Lightweight Deep Representation Learning", IEEE Transactions on Neural Networks and Learning Systems, pp 1-10, 2020.
- N. Passalis, G. Mourgias-Alexandris, N. Pleros and A.Tefas, "Initializing Photonic Feed-forward Neural Networks using Auxiliary Tasks", Neural Networks, pp 103-108, 2020.
- A. Tsantekidis, N. Passalis, A. - S. Toufa, K. Saitas-Zarkias, S. Charistanidis and A.Tefas, "Price Trailing for Financial Trading using Deep Reinforcement Learning", Transactions on Neural Networks and Learning Systems, pp 1-10, 2020.
- M. Krestenitis, N. Passalis, A.Iosifidis, and A.Tefas, "Recurrent Bag-of-Features for Visual Information Analysis", Pattern Recognition, 2020.
- N. Passalis, J. Raitoharju, A.Tefas and , "Efficient Adaptive Inference for Deep Convolutional Neural Networks using Hierarchical Early Exits", Pattern Recognition, 2020.
- N. Passalis, A.Iosifidis, and A.Tefas, "Hypersphere-based Weight Imprinting for Few-shot Learning on Embedded Devices", Transactions on Neural Networks and Learning Systems, pp 1-6, 2020.
- A. Totovic, G. Dabos, N. Passalis, A.Tefas and N. Pleros, "Femtojoule per MAC Neuromorphic Photonics: An Energy and Technology Roadmap", IEEE Journal of Selected Topics in Quantum Electronics, pp 1-15, 2020.
- G. Mourgias-Alexandris, G. Dabos, N. Passalis, A. Totovic, A.Tefas and N. Pleros, "All-optical WDM Recurrent Neural Networks with Gating", IEEE Journal of Selected Topics in Quantum Electronics, 2020.
- G. Mourgias-Alexandris, N. Passalis, G. Dabos, A. Totovic, A.Tefas and N. Pleros, "A Photonic Recurrent Neuron for Time-Series Classification", Journal of Lightwave Technology, pp: 1-1, 2020.
2019
- N. Passalis, G. Mourgias-Alexandris, A. Tsakyridis, N. Pleros and A.Tefas, "Training Deep Photonic Convolutional Neural Networks with Sinusoidal Activations", IEEE Transactions on Emerging Topics in Computational Intelligence, pp 1-10, 2019.
- N. Passalis and A.Tefas, "Discriminative clustering using regularized subspace learning", Pattern Recognition, 2019.
- A. Papadimitriou, N. Passalis and A.Tefas, "Visual representation decoding from human brain activity using machine learning: A baseline study", Pattern Recognition Letters, pp. 28-44, 2019.
- G. Mourgias-Alexandris, A. Totovic, A. Tsakyridis, N. Passalis, A.Tefas and K. Vyrsokinos, "Neuromorphic Photonics with Coherent Linear Neuronsusing dual-IQ modulation cells", Journal of Lightware Technology, pp. 811-819, 2019.
- N. Passalis, A.Iosifidis, and A.Tefas, "Variance-preserving deep metric learning for content-based image retrieval", Pattern Recognition Letters, pp. 8-14, 2019.
- N. Passalis, A.Tefas, J. Kanniainen, and A.Iosifidis, "Deep Adaptive Input Normalization for Time Series Forecasting", IEEE Transactions on Neural Networks and Learning Systems, pp. 1-6, 2019.
- N. Passalis and A.Tefas, "Deep Reinforcement Learning for Controlling Frontal Person Close-up Shooting", Neurocomputing, pp. 37-47, 2019.
- P. Nousi, A. Tsantekidis, N. Passalis, A.Tefas, J. Kanniainen, and A.Iosifidis, "Machine Learning for Forecasting Mid Price Movement Using Limit Order Book Data", IEEE Access, 2019.
- G. Mourgias-Alexandris, A. Tsakyridis, N. Passalis, A.Tefas, K. Vyrsokinos and N. Pleros, "A Sigmoid Optical Neuron for Photonic Neural Network Applications", Optics Express, 2019.
- N. Passalis and A.Tefas, "Continuous drone control using deep reinforcement learning for frontal view person shooting", Springer Neural Computing and Applications, July, 2019.
2018
- V. Lioutas, N. Passalis and A.Tefas, "Explicit Ensemble Attention Learning for Improving Visual Question Answering", Pattern Recognition Letters, 2018.
- N. Passalis and A.Tefas, "Learning Bag-of-Embedded-Words Representations for Textual Information Retrieval", Pattern Recognition, pp. 254-267, 2018.
- N. Passalis and A.Tefas, "PySEF: A Python Library for Similarity-based Dimensionality Reduction", Knowledge-Based Systems, 2018.
- N. Passalis and A.Tefas, "Unsupervised Knowledge Transfer Using Similarity Embeddings", IEEE Transactions on Neural Networks and Learning Systems (TNNLS), pp. 946-950, 2018.
- N. Passalis and A.Tefas, "Long Term Temporal Averaging for Stochastic Optimization of Deep Neural Networks", Neural Computing and Applications, 2018 (accepted).
- N. Passalis and A.Tefas, "Training Lightweight Deep Convolutional Neural Networks Using Bag-of-Features Pooling", IEEE Transactions on Neural Networks and Learning Systems, 2018.
- N. Passalis, A.Tefas, J. Kanniainen, and A.Iosifidis, "Temporal Bag-of-Features Learning for Predicting Mid Price Movements Using High Frequency Limit Order Book Data", IEEE Transactions on Emerging Topics in Computational Intelligence, 2018.
- D. Spathis, N. Passalis and A.Tefas, "Interactive Dimensionality Reduction Using Similarity Projections", Knowledge-Based Systems, 2018.
2017
- N. Passalis and A.Tefas, "Dimensionality Reduction using Similarity-induced Embeddings", IEEE Transactions on Neural Networks and Learning Systems, 2017.
- N. Passalis and A.Tefas, "Learning Neural Bag-of-Features for Large-Scale Image Retrieval", IEEE Transactions on Systems, Man, and Cybernetics: Systems, 2017.
2016
- N. Passalis and A.Tefas, "Entropy Optimized Feature-Based Bag-of-Words Representation for Information Retrieval", IEEE Transactions on Knowledge and Data Engineering, pp. 1664-1677, 2016.
- N. Passalis and A.Tefas, "Information Clustering Using Manifold-Based Optimization of the Bag-of-Features Representation", IEEE Transactions on Cybernetics, 2016.
- N. Passalis and A.Tefas, "Neural Bag-of-Features Learning", Pattern Recognition, 2016.
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