�ݺ�ߣshows by User: sympapadopoulos

�ݺ�ߣshows by User: sympapadopoulos / http://www.slideshare.net/images/logo.gif �ݺ�ߣshows by User: sympapadopoulos / Fri, 17 Dec 2021 07:24:15 GMT �ݺ�ߣShare feed for �ݺ�ߣshows by User: sympapadopoulos DeepFake Detection: Challenges, Progress and Hands-on Demonstration of Technology /slideshow/deepfake-detection-challenges-progress-and-handson-demonstration-of-technology/250855544 deepfakes-usparistech-jun2021-211217072416
�ݺ�ߣs accompanying an online webinar on DeepFake Detection and a hands-on demonstration of the MeVer DeepFake Detection service. The webinar is supported by the US-Paris Tech Challenge award for our work on the InVID-WeVerify plugin.]]>
�ݺ�ߣs accompanying an online webinar on DeepFake Detection and a hands-on demonstration of the MeVer DeepFake Detection service. The webinar is supported by the US-Paris Tech Challenge award for our work on the InVID-WeVerify plugin.]]> Fri, 17 Dec 2021 07:24:15 GMT /slideshow/deepfake-detection-challenges-progress-and-handson-demonstration-of-technology/250855544 sympapadopoulos@slideshare.net(sympapadopoulos) DeepFake Detection: Challenges, Progress and Hands-on Demonstration of Technology sympapadopoulos �ݺ�ߣs accompanying an online webinar on DeepFake Detection and a hands-on demonstration of the MeVer DeepFake Detection service. The webinar is supported by the US-Paris Tech Challenge award for our work on the InVID-WeVerify plugin. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/deepfakes-usparistech-jun2021-211217072416-thumbnail.jpg?width=120&height=120&fit=bounds" /> �ݺ�ߣs accompanying an online webinar on DeepFake Detection and a hands-on demonstration of the MeVer DeepFake Detection service. The webinar is supported by the US-Paris Tech Challenge award for our work on the InVID-WeVerify plugin.

DeepFake Detection: Challenges, Progress and Hands-on Demonstration of Technology from Symeon Papadopoulos

]]> 2353 0 https://cdn.slidesharecdn.com/ss_thumbnails/deepfakes-usparistech-jun2021-211217072416-thumbnail.jpg?width=120&height=120&fit=bounds presentation 000000 http://activitystrea.ms/schema/1.0/post

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0 Deepfakes: An Emerging Internet Threat and their Detection /slideshow/deepfakes-an-emerging-internet-threat-and-their-detection/240229454 deepfake-threat-detection-dec2020-201217131704
Webinar talk in the context of the AI4EU Web Cafe. Recording of the talk available on: https://youtu.be/wY1rvseH1C8 Deepfakes have emerged for some time now as one of the largest Internet threats, and even though their primary use so far has been the creation of pornographic content, the risk of them being abused for disinformation purposes is growing by the day. Deepfake creation approaches and tools are continuously improving in terms of result quality and ease of use by non-experts, and accordingly the amount of deepfake content on the Internet is quickly growing. For that reason, approaches for deepfake detection are a valuable tool for media companies, social media platforms and ultimately citizens to help them tell authentic from deepfake generated content. In this presentation, I will be presenting a short overview of the developments in the field of deepfake detection, and present our lessons learned from working on the problem in the context of the Deepfake Detection Challenge and from developing a service for the H2020 WeVerify project. ]]>
Webinar talk in the context of the AI4EU Web Cafe. Recording of the talk available on: https://youtu.be/wY1rvseH1C8 Deepfakes have emerged for some time now as one of the largest Internet threats, and even though their primary use so far has been the creation of pornographic content, the risk of them being abused for disinformation purposes is growing by the day. Deepfake creation approaches and tools are continuously improving in terms of result quality and ease of use by non-experts, and accordingly the amount of deepfake content on the Internet is quickly growing. For that reason, approaches for deepfake detection are a valuable tool for media companies, social media platforms and ultimately citizens to help them tell authentic from deepfake generated content. In this presentation, I will be presenting a short overview of the developments in the field of deepfake detection, and present our lessons learned from working on the problem in the context of the Deepfake Detection Challenge and from developing a service for the H2020 WeVerify project. ]]> Thu, 17 Dec 2020 13:17:04 GMT /slideshow/deepfakes-an-emerging-internet-threat-and-their-detection/240229454 sympapadopoulos@slideshare.net(sympapadopoulos) Deepfakes: An Emerging Internet Threat and their Detection sympapadopoulos Webinar talk in the context of the AI4EU Web Cafe. Recording of the talk available on: https://youtu.be/wY1rvseH1C8 Deepfakes have emerged for some time now as one of the largest Internet threats, and even though their primary use so far has been the creation of pornographic content, the risk of them being abused for disinformation purposes is growing by the day. Deepfake creation approaches and tools are continuously improving in terms of result quality and ease of use by non-experts, and accordingly the amount of deepfake content on the Internet is quickly growing. For that reason, approaches for deepfake detection are a valuable tool for media companies, social media platforms and ultimately citizens to help them tell authentic from deepfake generated content. In this presentation, I will be presenting a short overview of the developments in the field of deepfake detection, and present our lessons learned from working on the problem in the context of the Deepfake Detection Challenge and from developing a service for the H2020 WeVerify project. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/deepfake-threat-detection-dec2020-201217131704-thumbnail.jpg?width=120&height=120&fit=bounds" /> Webinar talk in the context of the AI4EU Web Cafe. Recording of the talk available on: https://youtu.be/wY1rvseH1C8 Deepfakes have emerged for some time now as one of the largest Internet threats, and even though their primary use so far has been the creation of pornographic content, the risk of them being abused for disinformation purposes is growing by the day. Deepfake creation approaches and tools are continuously improving in terms of result quality and ease of use by non-experts, and accordingly the amount of deepfake content on the Internet is quickly growing. For that reason, approaches for deepfake detection are a valuable tool for media companies, social media platforms and ultimately citizens to help them tell authentic from deepfake generated content. In this presentation, I will be presenting a short overview of the developments in the field of deepfake detection, and present our lessons learned from working on the problem in the context of the Deepfake Detection Challenge and from developing a service for the H2020 WeVerify project.

Deepfakes: An Emerging Internet Threat and their Detection from Symeon Papadopoulos

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0 Knowledge-based Fusion for Image Tampering Localization /slideshow/knowledgebased-fusion-for-image-tampering-localization/238931400 aiai2020-paper27-forensics-fusion-201021113929
Presentation of a new approach for the fusion of outputs from multiple tampering localization algorithms at the AIAI 2020 conference (online).]]>
Presentation of a new approach for the fusion of outputs from multiple tampering localization algorithms at the AIAI 2020 conference (online).]]> Wed, 21 Oct 2020 11:39:28 GMT /slideshow/knowledgebased-fusion-for-image-tampering-localization/238931400 sympapadopoulos@slideshare.net(sympapadopoulos) Knowledge-based Fusion for Image Tampering Localization sympapadopoulos Presentation of a new approach for the fusion of outputs from multiple tampering localization algorithms at the AIAI 2020 conference (online). <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/aiai2020-paper27-forensics-fusion-201021113929-thumbnail.jpg?width=120&height=120&fit=bounds" /> Presentation of a new approach for the fusion of outputs from multiple tampering localization algorithms at the AIAI 2020 conference (online).

Knowledge-based Fusion for Image Tampering Localization from Symeon Papadopoulos

]]> 135 0 https://cdn.slidesharecdn.com/ss_thumbnails/aiai2020-paper27-forensics-fusion-201021113929-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post

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0 Deepfake Detection: The Importance of Training Data Preprocessing and Practical Considerations /slideshow/deepfake-detection-the-importance-of-training-data-preprocessing-and-practical-considerations/238924260 deepfake-detection-weverify-oct2020-201020143809
Talk on the AI4Media Workshop on GANs for Media Content Generation, October 1st 2020, https://ai4media.eu/events/gan-media-generation-workshop-oct-2020/]]>
Talk on the AI4Media Workshop on GANs for Media Content Generation, October 1st 2020, https://ai4media.eu/events/gan-media-generation-workshop-oct-2020/]]> Tue, 20 Oct 2020 14:38:08 GMT /slideshow/deepfake-detection-the-importance-of-training-data-preprocessing-and-practical-considerations/238924260 sympapadopoulos@slideshare.net(sympapadopoulos) Deepfake Detection: The Importance of Training Data Preprocessing and Practical Considerations sympapadopoulos Talk on the AI4Media Workshop on GANs for Media Content Generation, October 1st 2020, https://ai4media.eu/events/gan-media-generation-workshop-oct-2020/ <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/deepfake-detection-weverify-oct2020-201020143809-thumbnail.jpg?width=120&height=120&fit=bounds" /> Talk on the AI4Media Workshop on GANs for Media Content Generation, October 1st 2020, https://ai4media.eu/events/gan-media-generation-workshop-oct-2020/

Deepfake Detection: The Importance of Training Data Preprocessing and Practical Considerations from Symeon Papadopoulos

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0 COVID-19 Infodemic vs Contact Tracing /slideshow/covid19-infodemic-vs-contact-tracing/236097965 covid19-ai4eu-23062020-200623151307
Short panel presentation given in the context of the AI4EU WebCafe "The COVID-19 and Contact Tracing Apps" on June 23rd 2020, focusing on the problem of COVID-19 misinformation and how this could potentially affect the adoption of contact tracing apps.]]>
Short panel presentation given in the context of the AI4EU WebCafe "The COVID-19 and Contact Tracing Apps" on June 23rd 2020, focusing on the problem of COVID-19 misinformation and how this could potentially affect the adoption of contact tracing apps.]]> Tue, 23 Jun 2020 15:13:07 GMT /slideshow/covid19-infodemic-vs-contact-tracing/236097965 sympapadopoulos@slideshare.net(sympapadopoulos) COVID-19 Infodemic vs Contact Tracing sympapadopoulos Short panel presentation given in the context of the AI4EU WebCafe "The COVID-19 and Contact Tracing Apps" on June 23rd 2020, focusing on the problem of COVID-19 misinformation and how this could potentially affect the adoption of contact tracing apps. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/covid19-ai4eu-23062020-200623151307-thumbnail.jpg?width=120&height=120&fit=bounds" /> Short panel presentation given in the context of the AI4EU WebCafe "The COVID-19 and Contact Tracing Apps" on June 23rd 2020, focusing on the problem of COVID-19 misinformation and how this could potentially affect the adoption of contact tracing apps.

COVID-19 Infodemic vs Contact Tracing from Symeon Papadopoulos

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0 Similarity-based retrieval of multimedia content /slideshow/similaritybased-retrieval-of-multimedia-content/129831404 duplicate-media-auth-jan-2019-190130094319
Lecture given on January 28, 2019 to post-graduate students of the Computer Engineering and Media program, at the School of Journalism and Media, Aristotle University of Thessaloniki.]]>
Lecture given on January 28, 2019 to post-graduate students of the Computer Engineering and Media program, at the School of Journalism and Media, Aristotle University of Thessaloniki.]]> Wed, 30 Jan 2019 09:43:19 GMT /slideshow/similaritybased-retrieval-of-multimedia-content/129831404 sympapadopoulos@slideshare.net(sympapadopoulos) Similarity-based retrieval of multimedia content sympapadopoulos Lecture given on January 28, 2019 to post-graduate students of the Computer Engineering and Media program, at the School of Journalism and Media, Aristotle University of Thessaloniki. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/duplicate-media-auth-jan-2019-190130094319-thumbnail.jpg?width=120&height=120&fit=bounds" /> Lecture given on January 28, 2019 to post-graduate students of the Computer Engineering and Media program, at the School of Journalism and Media, Aristotle University of Thessaloniki.

Similarity-based retrieval of multimedia content from Symeon Papadopoulos

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0 Twitter-based Sensing of City-level Air Quality /slideshow/twitterbased-sensing-of-citylevel-air-quality/102771498 papadop-twitteraq-ivmsp2018-180621110213
Presentation on the topic of sensing air-quality at city level based on Twitter data given at the IEEE Image, Video, and Multidimensional Signal Processing (IVMSP) 2018 workshop in Aristi, Greece.]]>
Presentation on the topic of sensing air-quality at city level based on Twitter data given at the IEEE Image, Video, and Multidimensional Signal Processing (IVMSP) 2018 workshop in Aristi, Greece.]]> Thu, 21 Jun 2018 11:02:13 GMT /slideshow/twitterbased-sensing-of-citylevel-air-quality/102771498 sympapadopoulos@slideshare.net(sympapadopoulos) Twitter-based Sensing of City-level Air Quality sympapadopoulos Presentation on the topic of sensing air-quality at city level based on Twitter data given at the IEEE Image, Video, and Multidimensional Signal Processing (IVMSP) 2018 workshop in Aristi, Greece. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/papadop-twitteraq-ivmsp2018-180621110213-thumbnail.jpg?width=120&height=120&fit=bounds" /> Presentation on the topic of sensing air-quality at city level based on Twitter data given at the IEEE Image, Video, and Multidimensional Signal Processing (IVMSP) 2018 workshop in Aristi, Greece.

Twitter-based Sensing of City-level Air Quality from Symeon Papadopoulos

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0 Aggregating and Analyzing the Context of Social Media Content /slideshow/aggregating-and-analyzing-the-context-of-social-media-content/100930971 socialmedia-verification-eshem-jun2018-180606135018
Introduction to the Context Analysis and Aggregation service of InVID. Given at the Workshop on Content Verification Tools hosted by the journalists' association in Thessaloniki, Greece on June 6, 2018.]]>
Introduction to the Context Analysis and Aggregation service of InVID. Given at the Workshop on Content Verification Tools hosted by the journalists' association in Thessaloniki, Greece on June 6, 2018.]]> Wed, 06 Jun 2018 13:50:17 GMT /slideshow/aggregating-and-analyzing-the-context-of-social-media-content/100930971 sympapadopoulos@slideshare.net(sympapadopoulos) Aggregating and Analyzing the Context of Social Media Content sympapadopoulos Introduction to the Context Analysis and Aggregation service of InVID. Given at the Workshop on Content Verification Tools hosted by the journalists' association in Thessaloniki, Greece on June 6, 2018. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/socialmedia-verification-eshem-jun2018-180606135018-thumbnail.jpg?width=120&height=120&fit=bounds" /> Introduction to the Context Analysis and Aggregation service of InVID. Given at the Workshop on Content Verification Tools hosted by the journalists' association in Thessaloniki, Greece on June 6, 2018.

Aggregating and Analyzing the Context of Social Media Content from Symeon Papadopoulos

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0 Verifying Multimedia Content on the Internet /sympapadopoulos/verifying-multimedia-information-on-the-internet socialmedia-verification-techforum-may2018-180516093719
Summary of problems and research results on the problem of verifying multimedia content on the Internet. Includes results from the REVEAL and InVID research projects. Presented at the Technology Forum, Thessaloniki, May 16, 2018.]]>
Summary of problems and research results on the problem of verifying multimedia content on the Internet. Includes results from the REVEAL and InVID research projects. Presented at the Technology Forum, Thessaloniki, May 16, 2018.]]> Wed, 16 May 2018 09:37:19 GMT /sympapadopoulos/verifying-multimedia-information-on-the-internet sympapadopoulos@slideshare.net(sympapadopoulos) Verifying Multimedia Content on the Internet sympapadopoulos Summary of problems and research results on the problem of verifying multimedia content on the Internet. Includes results from the REVEAL and InVID research projects. Presented at the Technology Forum, Thessaloniki, May 16, 2018. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/socialmedia-verification-techforum-may2018-180516093719-thumbnail.jpg?width=120&height=120&fit=bounds" /> Summary of problems and research results on the problem of verifying multimedia content on the Internet. Includes results from the REVEAL and InVID research projects. Presented at the Technology Forum, Thessaloniki, May 16, 2018.

Verifying Multimedia Content on the Internet from Symeon Papadopoulos

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0 A Web-based Service for Image Tampering Detection /slideshow/a-webbased-service-for-image-tampering-detection/83537772 web-image-forensics-dec2017-171207064820
Presentation of web-based service developed within REVEAL and InVID on Experts’ Meeting on Digital Image Authentication and Classification, December 6, 2017. ]]>
Presentation of web-based service developed within REVEAL and InVID on Experts’ Meeting on Digital Image Authentication and Classification, December 6, 2017. ]]> Thu, 07 Dec 2017 06:48:20 GMT /slideshow/a-webbased-service-for-image-tampering-detection/83537772 sympapadopoulos@slideshare.net(sympapadopoulos) A Web-based Service for Image Tampering Detection sympapadopoulos Presentation of web-based service developed within REVEAL and InVID on Experts’ Meeting on Digital Image Authentication and Classification, December 6, 2017. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/web-image-forensics-dec2017-171207064820-thumbnail.jpg?width=120&height=120&fit=bounds" /> Presentation of web-based service developed within REVEAL and InVID on Experts’ Meeting on Digital Image Authentication and Classification, December 6, 2017.

A Web-based Service for Image Tampering Detection from Symeon Papadopoulos

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0 Learning to detect Misleading Content on Twitter /sympapadopoulos/learning-to-detect-misleading-content-on-twitter boididou-learning-to-detect-misleading-content-170608091543
Presentation of paper on the problem of detecting fake tweets, at ICMR 2017, Bucharest, Romania.]]>
Presentation of paper on the problem of detecting fake tweets, at ICMR 2017, Bucharest, Romania.]]> Thu, 08 Jun 2017 09:15:43 GMT /sympapadopoulos/learning-to-detect-misleading-content-on-twitter sympapadopoulos@slideshare.net(sympapadopoulos) Learning to detect Misleading Content on Twitter sympapadopoulos Presentation of paper on the problem of detecting fake tweets, at ICMR 2017, Bucharest, Romania. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/boididou-learning-to-detect-misleading-content-170608091543-thumbnail.jpg?width=120&height=120&fit=bounds" /> Presentation of paper on the problem of detecting fake tweets, at ICMR 2017, Bucharest, Romania.

Learning to detect Misleading Content on Twitter from Symeon Papadopoulos

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0 Near-Duplicate Video Retrieval by Aggregating Intermediate CNN Layers /slideshow/nearduplicate-video-retrieval-by-aggregating-intermediate-cnn-layers/70738574 mmm17ndvr-170106095225
Oral presentation at 23rd MultiMedia Modelling conference (MMM 2017), Reykjavik, Iceland.]]>
Oral presentation at 23rd MultiMedia Modelling conference (MMM 2017), Reykjavik, Iceland.]]> Fri, 06 Jan 2017 09:52:25 GMT /slideshow/nearduplicate-video-retrieval-by-aggregating-intermediate-cnn-layers/70738574 sympapadopoulos@slideshare.net(sympapadopoulos) Near-Duplicate Video Retrieval by Aggregating Intermediate CNN Layers sympapadopoulos Oral presentation at 23rd MultiMedia Modelling conference (MMM 2017), Reykjavik, Iceland. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/mmm17ndvr-170106095225-thumbnail.jpg?width=120&height=120&fit=bounds" /> Oral presentation at 23rd MultiMedia Modelling conference (MMM 2017), Reykjavik, Iceland.

Near-Duplicate Video Retrieval by Aggregating Intermediate CNN Layers from Symeon Papadopoulos

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0 Verifying Multimedia Use at MediaEval 2016 /slideshow/verifying-multimedia-use-at-mediaeval-2016/67801950 taskoverviewpresentation2016v3-161028174645
Overview presentation of Verifying Multimedia Use task by Christina Boididou and Stuart Middleton at MediaEval workshop, Hilversum, Amsterdam. ]]>
Overview presentation of Verifying Multimedia Use task by Christina Boididou and Stuart Middleton at MediaEval workshop, Hilversum, Amsterdam. ]]> Fri, 28 Oct 2016 17:46:45 GMT /slideshow/verifying-multimedia-use-at-mediaeval-2016/67801950 sympapadopoulos@slideshare.net(sympapadopoulos) Verifying Multimedia Use at MediaEval 2016 sympapadopoulos Overview presentation of Verifying Multimedia Use task by Christina Boididou and Stuart Middleton at MediaEval workshop, Hilversum, Amsterdam. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/taskoverviewpresentation2016v3-161028174645-thumbnail.jpg?width=120&height=120&fit=bounds" /> Overview presentation of Verifying Multimedia Use task by Christina Boididou and Stuart Middleton at MediaEval workshop, Hilversum, Amsterdam.

Verifying Multimedia Use at MediaEval 2016 from Symeon Papadopoulos

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0 Multimedia Privacy /sympapadopoulos/multimedia-privacy multimedia-privacy-acmmm16-v3-161020211332
Tutorial for ACM Multimedia 2016, given together with Gerald Friedland, with contributions from Julia Bernd and Yiannis Kompatsiaris. The presentation covered an introduction to the problem of disclosing personal information through multimedia sharing, the associated security risks, methods for conducting multimodla inferences and technical frameworks that could help alleviate such risks.]]>
Tutorial for ACM Multimedia 2016, given together with Gerald Friedland, with contributions from Julia Bernd and Yiannis Kompatsiaris. The presentation covered an introduction to the problem of disclosing personal information through multimedia sharing, the associated security risks, methods for conducting multimodla inferences and technical frameworks that could help alleviate such risks.]]> Thu, 20 Oct 2016 21:13:32 GMT /sympapadopoulos/multimedia-privacy sympapadopoulos@slideshare.net(sympapadopoulos) Multimedia Privacy sympapadopoulos Tutorial for ACM Multimedia 2016, given together with Gerald Friedland, with contributions from Julia Bernd and Yiannis Kompatsiaris. The presentation covered an introduction to the problem of disclosing personal information through multimedia sharing, the associated security risks, methods for conducting multimodla inferences and technical frameworks that could help alleviate such risks. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/multimedia-privacy-acmmm16-v3-161020211332-thumbnail.jpg?width=120&height=120&fit=bounds" /> Tutorial for ACM Multimedia 2016, given together with Gerald Friedland, with contributions from Julia Bernd and Yiannis Kompatsiaris. The presentation covered an introduction to the problem of disclosing personal information through multimedia sharing, the associated security risks, methods for conducting multimodla inferences and technical frameworks that could help alleviate such risks.

Multimedia Privacy from Symeon Papadopoulos

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0 Placing Images with Refined Language Models and Similarity Search with PCA-reduced VGG Features /slideshow/placing-images-with-refined-language-models-and-similarity-search-with-pcareduced-vgg-features/67441077 placingtask2016presentation-161020064949
Participation in MediaEval Placing Task 2016. Presented by Giorgos Kordopatis-Zilos in Amsterdam, 2016.]]>
Participation in MediaEval Placing Task 2016. Presented by Giorgos Kordopatis-Zilos in Amsterdam, 2016.]]> Thu, 20 Oct 2016 06:49:49 GMT /slideshow/placing-images-with-refined-language-models-and-similarity-search-with-pcareduced-vgg-features/67441077 sympapadopoulos@slideshare.net(sympapadopoulos) Placing Images with Refined Language Models and Similarity Search with PCA-reduced VGG Features sympapadopoulos Participation in MediaEval Placing Task 2016. Presented by Giorgos Kordopatis-Zilos in Amsterdam, 2016. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/placingtask2016presentation-161020064949-thumbnail.jpg?width=120&height=120&fit=bounds" /> Participation in MediaEval Placing Task 2016. Presented by Giorgos Kordopatis-Zilos in Amsterdam, 2016.

Placing Images with Refined Language Models and Similarity Search with PCA-reduced VGG Features from Symeon Papadopoulos

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0 In-depth Exploration of Geotagging Performance /slideshow/indepth-exploration-of-geotagging-performance/67225036 mmcommons16exploringgeotaggingperformance-161015190058
Presentation at ACM Multimedia 2016 workshop MM Commons, Amsterdam 2016. ]]>
Presentation at ACM Multimedia 2016 workshop MM Commons, Amsterdam 2016. ]]> Sat, 15 Oct 2016 19:00:58 GMT /slideshow/indepth-exploration-of-geotagging-performance/67225036 sympapadopoulos@slideshare.net(sympapadopoulos) In-depth Exploration of Geotagging Performance sympapadopoulos Presentation at ACM Multimedia 2016 workshop MM Commons, Amsterdam 2016. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/mmcommons16exploringgeotaggingperformance-161015190058-thumbnail.jpg?width=120&height=120&fit=bounds" /> Presentation at ACM Multimedia 2016 workshop MM Commons, Amsterdam 2016.

In-depth Exploration of Geotagging Performance from Symeon Papadopoulos

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0 Perceived versus Actual Predictability of Personal Information in Social Networks /sympapadopoulos/perceived-versus-actual-predictability-of-personal-information-in-social-networks-66010199 perceivedversusactual-160914094247
Presentation given by Lefteris Spyromitros-Xioufis at the Internet Science Conference in Florence, Italy, September 2016]]>
Presentation given by Lefteris Spyromitros-Xioufis at the Internet Science Conference in Florence, Italy, September 2016]]> Wed, 14 Sep 2016 09:42:47 GMT /sympapadopoulos/perceived-versus-actual-predictability-of-personal-information-in-social-networks-66010199 sympapadopoulos@slideshare.net(sympapadopoulos) Perceived versus Actual Predictability of Personal Information in Social Networks sympapadopoulos Presentation given by Lefteris Spyromitros-Xioufis at the Internet Science Conference in Florence, Italy, September 2016 <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/perceivedversusactual-160914094247-thumbnail.jpg?width=120&height=120&fit=bounds" /> Presentation given by Lefteris Spyromitros-Xioufis at the Internet Science Conference in Florence, Italy, September 2016

Perceived versus Actual Predictability of Personal Information in Social Networks from Symeon Papadopoulos

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0 Web and Social Media Image Forensics for News Professionals /slideshow/web-and-social-media-image-forensics-for-news-professionals/62341715 smnews2016zampoglou-160524122841
Presentation of REVEAL Media Verification Assistant in the #SMNews workshop, co-located with ICWSM 2016, Cologne, Germany]]>
Presentation of REVEAL Media Verification Assistant in the #SMNews workshop, co-located with ICWSM 2016, Cologne, Germany]]> Tue, 24 May 2016 12:28:41 GMT /slideshow/web-and-social-media-image-forensics-for-news-professionals/62341715 sympapadopoulos@slideshare.net(sympapadopoulos) Web and Social Media Image Forensics for News Professionals sympapadopoulos Presentation of REVEAL Media Verification Assistant in the #SMNews workshop, co-located with ICWSM 2016, Cologne, Germany <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/smnews2016zampoglou-160524122841-thumbnail.jpg?width=120&height=120&fit=bounds" /> Presentation of REVEAL Media Verification Assistant in the #SMNews workshop, co-located with ICWSM 2016, Cologne, Germany

Web and Social Media Image Forensics for News Professionals from Symeon Papadopoulos

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0 Predicting News Popularity by Mining Online Discussions /slideshow/predicting-news-popularity-by-mining-online-discussions/60817545 reveal-popularity-160412154546
Presentation at Social News on the Web workshop in the context of World Wide Web 2016 conference, Montreal, Canada.]]>
Presentation at Social News on the Web workshop in the context of World Wide Web 2016 conference, Montreal, Canada.]]> Tue, 12 Apr 2016 15:45:45 GMT /slideshow/predicting-news-popularity-by-mining-online-discussions/60817545 sympapadopoulos@slideshare.net(sympapadopoulos) Predicting News Popularity by Mining Online Discussions sympapadopoulos Presentation at Social News on the Web workshop in the context of World Wide Web 2016 conference, Montreal, Canada. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/reveal-popularity-160412154546-thumbnail.jpg?width=120&height=120&fit=bounds" /> Presentation at Social News on the Web workshop in the context of World Wide Web 2016 conference, Montreal, Canada.

Predicting News Popularity by Mining Online Discussions from Symeon Papadopoulos

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0 Finding Diverse Social Images at MediaEval 2015 /slideshow/finding-diverse-social-images-at-mediaeval-2015/53003260 diversity-task-2015-na-150921072339-lva1-app6892
Presentation of the joint participation between CERTH and CEA LIST in the MediaEval 2015 edition of the Retrieving Diverse Social Images Task in Wurzen, Germany on 14-15 September, 2015.]]>
Presentation of the joint participation between CERTH and CEA LIST in the MediaEval 2015 edition of the Retrieving Diverse Social Images Task in Wurzen, Germany on 14-15 September, 2015.]]> Mon, 21 Sep 2015 07:23:39 GMT /slideshow/finding-diverse-social-images-at-mediaeval-2015/53003260 sympapadopoulos@slideshare.net(sympapadopoulos) Finding Diverse Social Images at MediaEval 2015 sympapadopoulos Presentation of the joint participation between CERTH and CEA LIST in the MediaEval 2015 edition of the Retrieving Diverse Social Images Task in Wurzen, Germany on 14-15 September, 2015. <img style="border:1px solid #C3E6D8;float:right;" alt="" src="https://cdn.slidesharecdn.com/ss_thumbnails/diversity-task-2015-na-150921072339-lva1-app6892-thumbnail.jpg?width=120&height=120&fit=bounds" /> Presentation of the joint participation between CERTH and CEA LIST in the MediaEval 2015 edition of the Retrieving Diverse Social Images Task in Wurzen, Germany on 14-15 September, 2015.

Finding Diverse Social Images at MediaEval 2015 from Symeon Papadopoulos

]]> 449 5 https://cdn.slidesharecdn.com/ss_thumbnails/diversity-task-2015-na-150921072339-lva1-app6892-thumbnail.jpg?width=120&height=120&fit=bounds presentation Black http://activitystrea.ms/schema/1.0/post

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0 https://cdn.slidesharecdn.com/profile-photo-sympapadopoulos-48x48.jpg?cb=1639675510 Since my graduation as an Electrical & Computer Engineer from Aristotle University of Thessaloniki (AUTh) in 2004, I have been involved in a variety of research projects, within the following disciplines: image & video processing, medical systems, patent document analysis, recommender systems, data mining. Between 2004 and 2006 I followed a two-year Professional Doctorate in Engineering (P.D.Eng.) program, hosted by the Stan Ackermans Institute, part of the Technical University of Eindhoven (TU/e). On July 2006 I completed my P.D.Eng. thesis on the topic of improved DSA imaging. I also followed an internet MBA program provided by the Blekinge Institute of Technology (BTH), Karlskrona, Swe... mklab.iti.gr/mklab_people/papadop/doku.php https://cdn.slidesharecdn.com/ss_thumbnails/deepfakes-usparistech-jun2021-211217072416-thumbnail.jpg?width=320&height=320&fit=bounds slideshow/deepfake-detection-challenges-progress-and-handson-demonstration-of-technology/250855544 DeepFake Detection: Ch... https://cdn.slidesharecdn.com/ss_thumbnails/deepfake-threat-detection-dec2020-201217131704-thumbnail.jpg?width=320&height=320&fit=bounds slideshow/deepfakes-an-emerging-internet-threat-and-their-detection/240229454 Deepfakes: An Emerging... https://cdn.slidesharecdn.com/ss_thumbnails/aiai2020-paper27-forensics-fusion-201021113929-thumbnail.jpg?width=320&height=320&fit=bounds slideshow/knowledgebased-fusion-for-image-tampering-localization/238931400 Knowledge-based Fusion...