Nikolaos Gkanatsios

Nikolaos Gkanatsios
ngkanats@andrew.cmu.edu

I am a PhD student at the Robotics Institute of Carnegie Mellon University, advised by Prof. Katerina Fragkiadaki. Previously, I received my M.Sc./B.Sc. Diploma in Electrical and Computer Engineering from National Technical University of Athens in Greece, where I also spent 2 more years working with Prof. Petros Maragos.

Before joining CMU, I worked as an ML Engineer/Researcher at Deeplab on Scene Graph Generation. Before Deeplab, I also worked at METIS Cybetechnology as an AI Engineer on Natural Language Processing systems.

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Publications

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Analogy-Forming Transformers for Few-Shot 3D Parsing
Nikolaos Gkanatsios*, Mayank Singh*, Zhaoyuan Fang, Shubham Tulsiani, Katerina Fragkiadaki
International Conference on Learning Representations, ICLR, 2023

PDF / GitHub / Project Page

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Energy-based Models are Zero-Shot Planners for Compositional Scene Rearrangement
Nikolaos Gkanatsios*, Ayush Jain*, Xian Zhou, Yunchu Zhang, Chris Atkeson, Katerina Fragkiadaki
Robotics: Science and Systems, RSS, 2023

PDF / GitHub / Project Page

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Bottom Up Top Down Detection Transformers for Language Grounding in Images and Point Clouds
Ayush Jain*, Nikolaos Gkanatsios*, Ishita Mediratta, Katerina Fragkiadaki
European Conference on Computer Vision, ECCV, 2022

PDF / GitHub / Project Page

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Grounding Consistency: Distilling Spatial Common Sense for Precise Visual Relationship Detection
Markos Diomataris, Nikolaos Gkanatsios, Vassilis Pitsikalis, Petros Maragos
International Conference on Computer Vision, ICCV, 2021

PDF / GitHub

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From Saturation to Zero-Shot Visual Relationship Detection Using Local Context
Nikolaos Gkanatsios, Vassilis Pitsikalis, Petros Maragos
British Machine Vision Conference, BMVC, 2020

PDF / GitHub

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Revisiting Grasp Map Representation with a Focus on Orientation in Grasp Synthesis
Nikolaos Gkanatsios, Georgia Chalvarzaki, Petros Maragos, Jan Peters
Visual Learning and Reasoning for Robotic Manipulation, RSS Workshop, 2020

PDF

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Attention-Translation-Relation Network for Scalable Scene Graph Generation
Nikolaos Gkanatsios, Vassilis Pitsikalis, Petros Koutras, Petros Maragos
Scene Graph Representation and Learning, ICCVW, 2019

PDF / GitHub

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Showcasing Deeply Supervised Multimodal Attentional Translation Embeddings: a Demo for Visual Relationship Detection
Nikolaos Gkanatsios, Vassilis Pitsikalis, Petros Koutras, Athanasia Zlatintsi, Petros Maragos
International Conference of Image Processing (ICIP), 2019

New Demo Webpage

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Deeply Supervised Multimodal Attentional Translation Embeddings for Visual Relationship Detection
Nikolaos Gkanatsios, Vassilis Pitsikalis, Petros Koutras, Athanasia Zlatintsi, Petros Maragos
International Conference of Image Processing (ICIP), 2019 (oral)

Arxiv / GitHub / DeepLab project page

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Metis: A Scalable Natural-Language-Based Intelligent Personal Assistant for Maritime Services
Nikolaos Gkanatsios, Konstantina Mermikli, Serafeim Katsikas
International Conference of Information and Software Technologies (ICIST), 2018 (oral)

Presentation Slides

News

Our team got the second place in the Alexa Prize SimBot Public Benchmark Challenge!
VRD demo is live again with a new, much updated design, test it yourself!
As of Fall 2020, I am a PhD student at CMU!
Congratulations to my friend and collaborator Petros Koutras on successfully defending his PhD dissertation! May our paths cross again!
Our live demo about Deeply Supervised Multimodal Attentional Translation Embeddings at ICIP 2019 attracted a lot of attention! We are releasing it soon with a public IP.
Awarded by the National Technical University of Athens for being the 1st in Systems and Electronics major among the class of 2017!
Gave a talk at Voxxed Days Athens about METIS's Scalable Maritime Platform Providing Services Through an NLP-Based Intelligent Personal Assistant.

Other Projects

A (not exhaustive) list of some unpublished projects and less technical stuff is here.

Template stolen from Georgia Gkioxari