Search Results for author: Evlampios Apostolidis

Found 9 papers, 6 papers with code

Towards Quantitative Evaluation of Explainable AI Methods for Deepfake Detection

no code implementations29 Apr 2024 Konstantinos Tsigos, Evlampios Apostolidis, Spyridon Baxevanakis, Symeon Papadopoulos, Vasileios Mezaris

The findings of our quantitative and qualitative evaluations document the advanced performance of the LIME explanation method against the other compared ones, and indicate this method as the most appropriate for explaining the decisions of the utilized deepfake detector.

DeepFake Detection Face Swapping

Facilitating the Production of Well-tailored Video Summaries for Sharing on Social Media

no code implementations5 Dec 2023 Evlampios Apostolidis, Konstantinos Apostolidis, Vasileios Mezaris

This paper presents a web-based tool that facilitates the production of tailored summaries for online sharing on social media.

Video Summarization

Summarizing Videos using Concentrated Attention and Considering the Uniqueness and Diversity of the Video Frames

1 code implementation ACM ICMR 2022 Evlampios Apostolidis, Georgios Balaouras, Vasileios Mezaris, Ioannis Patras

Instead of simply modeling the frames' dependencies based on global attention, our method integrates a concentrated attention mechanism that is able to focus on non-overlapping blocks in the main diagonal of the attention matrix, and to enrich the existing information by extracting and exploiting knowledge about the uniqueness and diversity of the associated frames of the video.

Benchmarking Unsupervised Video Summarization

Video Summarization Using Deep Neural Networks: A Survey

no code implementations15 Jan 2021 Evlampios Apostolidis, Eleni Adamantidou, Alexandros I. Metsai, Vasileios Mezaris, Ioannis Patras

Video summarization technologies aim to create a concise and complete synopsis by selecting the most informative parts of the video content.

Video Summarization

Unsupervised Video Summarization via Attention-Driven Adversarial Learning

1 code implementation MultiMedia Modeling (MMM) 2019 Evlampios Apostolidis, Eleni Adamantidou, Alexandros I. Metsai, Vasileios Mezaris, Ioannis Patras

Experimental evaluation on two datasets (SumMe and TVSum) documents the contribution of the attention auto-encoder to faster and more stable training of the model, resulting in a significant performance improvement with respect to the original model and demonstrating the competitiveness of the proposed SUM-GAN-AAE against the state of the art.

Unsupervised Video Summarization

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