Search Results for author: Paraskevi Nousi

Found 9 papers, 5 papers with code

Leveraging Deep Learning and Online Source Sentiment for Financial Portfolio Management

no code implementations23 Jul 2023 Paraskevi Nousi, Loukia Avramelou, Georgios Rodinos, Maria Tzelepi, Theodoros Manousis, Konstantinos Tsampazis, Kyriakos Stefanidis, Dimitris Spanos, Manos Kirtas, Pavlos Tosidis, Avraam Tsantekidis, Nikolaos Passalis, Anastasios Tefas

Financial portfolio management describes the task of distributing funds and conducting trading operations on a set of financial assets, such as stocks, index funds, foreign exchange or cryptocurrencies, aiming to maximize the profit while minimizing the loss incurred by said operations.

Management

Variational Voxel Pseudo Image Tracking

2 code implementations12 Feb 2023 Illia Oleksiienko, Paraskevi Nousi, Nikolaos Passalis, Anastasios Tefas, Alexandros Iosifidis

Uncertainty estimation is an important task for critical problems, such as robotics and autonomous driving, because it allows creating statistically better perception models and signaling the model's certainty in its predictions to the decision method or a human supervisor.

3D Single Object Tracking Autonomous Driving +1

A Novel Dataset for Evaluating and Alleviating Domain Shift for Human Detection in Agricultural Fields

1 code implementation27 Sep 2022 Paraskevi Nousi, Emmanouil Mpampis, Nikolaos Passalis, Ole Green, Anastasios Tefas

In this paper we evaluate the impact of domain shift on human detection models trained on well known object detection datasets when deployed on data outside the distribution of the training set, as well as propose methods to alleviate such phenomena based on the available annotations from the target domain.

Human Detection object-detection +1

VPIT: Real-time Embedded Single Object 3D Tracking Using Voxel Pseudo Images

2 code implementations6 Jun 2022 Illia Oleksiienko, Paraskevi Nousi, Nikolaos Passalis, Anastasios Tefas, Alexandros Iosifidis

In this paper, we propose a novel voxel-based 3D single object tracking (3D SOT) method called Voxel Pseudo Image Tracking (VPIT).

3D Single Object Tracking Object +1

Deep Residual Error and Bag-of-Tricks Learning for Gravitational Wave Surrogate Modeling

1 code implementation16 Mar 2022 Styliani-Christina Fragkouli, Paraskevi Nousi, Nikolaos Passalis, Panagiotis Iosif, Nikolaos Stergioulas, Anastasios Tefas

In several cases, small improvements can be observed, but the most significant improvement still comes from the addition of a second network that models the residual error.

Astronomy

Autoencoder-driven Spiral Representation Learning for Gravitational Wave Surrogate Modelling

no code implementations9 Jul 2021 Paraskevi Nousi, Styliani-Christina Fragkouli, Nikolaos Passalis, Panagiotis Iosif, Theocharis Apostolatos, George Pappas, Nikolaos Stergioulas, Anastasios Tefas

Based on this finding, we design a spiral module with learnable parameters, that is used as the first layer in a neural network, which learns to map the input space to the coefficients.

Astronomy Representation Learning

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