no code implementations • ICML 2020 • Adeel Pervez, Taco Cohen, Efstratios Gavves
Stochastic neural networks with discrete random variables are an important class of models for their expressiveness and interpretability.
no code implementations • 19 Dec 2024 • Leonardo Barcellona, Andrii Zadaianchuk, Davide Allegro, Samuele Papa, Stefano Ghidoni, Efstratios Gavves
In this paper, we introduce a new paradigm for constructing world models that are explicit representations of the real world and its dynamics.
1 code implementation • 15 Dec 2024 • Mohammadreza Salehi, Nikolaos Apostolikas, Efstratios Gavves, Cees G. M. Snoek, Yuki M. Asano
Adapting to our object-level definition of `normal', we modify knowledge distillation frameworks, where a student network learns from a pre-trained teacher network.
1 code implementation • 11 Dec 2024 • Miltiadis Kofinas, Samuele Papa, Efstratios Gavves
NeoMLP has a built-in mechanism for conditioning through the hidden and output nodes, which function as a set of latent codes, and as such, NeoMLP can be used straightforwardly as a conditional neural field.
no code implementations • 28 Nov 2024 • Dimitrios Karageorgiou, Symeon Papadopoulos, Ioannis Kompatsiaris, Efstratios Gavves
Since generated images constitute out-of-distribution samples for this model, we propose spectral reconstruction similarity to capture this divergence.
no code implementations • 7 Nov 2024 • Jie Liu, Pan Zhou, Yingjun Du, Ah-Hwee Tan, Cees G. M. Snoek, Jan-Jakob Sonke, Efstratios Gavves
To solve this issue, we propose Cooperative Plan Optimization (CaPo) to enhance the cooperation efficiency of LLM-based embodied agents.
1 code implementation • 25 Oct 2024 • John Gkountouras, Matthias Lindemann, Phillip Lippe, Efstratios Gavves, Ivan Titov
We propose a framework that integrates CRLs with LLMs to enable causally-aware reasoning and planning.
1 code implementation • 13 Oct 2024 • Daniel Gallo Fernández, Robert van der Klis, Răzvan-Andrei Matişan, Janusz Partyka, Efstratios Gavves, Samuele Papa, Phillip Lippe
While vision transformers are able to solve a wide variety of computer vision tasks, no pre-training method has yet demonstrated the same scaling laws as observed in language models.
no code implementations • 22 Jul 2024 • Mohammadreza Salehi, Michael Dorkenwald, Fida Mohammad Thoker, Efstratios Gavves, Cees G. M. Snoek, Yuki M. Asano
To tackle this, we present Sinkhorn-guided Masked Video Modelling (SIGMA), a novel video pretraining method that jointly learns the video model in addition to a target feature space using a projection network.
1 code implementation • 17 Jul 2024 • Luc P. J. Sträter, Mohammadreza Salehi, Efstratios Gavves, Cees G. M. Snoek, Yuki M. Asano
These features are fed to an attention-based discriminator, which is trained to score every patch in the image.
Ranked #1 on Anomaly Detection on One-class CIFAR-100
2 code implementations • 16 Jul 2024 • Cilin Yan, Haochen Wang, Shilin Yan, XiaoLong Jiang, Yao Hu, Guoliang Kang, Weidi Xie, Efstratios Gavves
In this paper, we introduce a new task, Reasoning Video Object Segmentation (ReasonVOS).
Ranked #3 on Referring Video Object Segmentation on ReVOS
no code implementations • 17 Jun 2024 • Cilin Yan, Haochen Wang, XiaoLong Jiang, Yao Hu, Xu Tang, Guoliang Kang, Efstratios Gavves
Specifically, we adopt a transformer module which takes the visual feature as "Query", the text features of the anchors as "Key" and the similarity matrix between the text features of anchor and target classes as "Value".
no code implementations • 10 Jun 2024 • David M. Knigge, David R. Wessels, Riccardo Valperga, Samuele Papa, Jan-Jakob Sonke, Efstratios Gavves, Erik J. Bekkers
Recently, Conditional Neural Fields (NeFs) have emerged as a powerful modelling paradigm for PDEs, by learning solutions as flows in the latent space of the Conditional NeF.
1 code implementation • 9 Jun 2024 • David R Wessels, David M Knigge, Samuele Papa, Riccardo Valperga, Sharvaree Vadgama, Efstratios Gavves, Erik J Bekkers
Conditional Neural Fields (CNFs) are increasingly being leveraged as continuous signal representations, by associating each data-sample with a latent variable that conditions a shared backbone Neural Field (NeF) to reconstruct the sample.
1 code implementation • 6 Jun 2024 • Yongtuo Liu, Sara Magliacane, Miltiadis Kofinas, Efstratios Gavves
Hybrid dynamical systems are prevalent in science and engineering to express complex systems with continuous and discrete states.
1 code implementation • 4 Jun 2024 • Evgenii Egorov, Ricardo Valperga, Efstratios Gavves
Markov chain Monte Carlo methods have become popular in statistics as versatile techniques to sample from complicated probability distributions.
1 code implementation • 30 May 2024 • Wenzhe Yin, Shujian Yu, Yicong Lin, Jie Liu, Jan-Jakob Sonke, Efstratios Gavves
Furthermore, we illustrate that the CS divergence enables a simple estimator on the discrepancy of both marginal and conditional distributions between source and target domains in the representation space, without requiring any distributional assumptions.
no code implementations • 26 Apr 2024 • Sotirios Konstantakos, Jorgen Cani, Ioannis Mademlis, Despina Ioanna Chalkiadaki, Yuki M. Asano, Efstratios Gavves, Georgios Th. Papadopoulos
Self-Supervised Learning (SSL) is a valuable and robust training methodology for contemporary Deep Neural Networks (DNNs), enabling unsupervised pretraining on a 'pretext task' that does not require ground-truth labels/annotation.
no code implementations • 22 Apr 2024 • Leonard Bereska, Efstratios Gavves
Understanding AI systems' inner workings is critical for ensuring value alignment and safety.
1 code implementation • 18 Mar 2024 • Miltiadis Kofinas, Boris Knyazev, Yan Zhang, Yunlu Chen, Gertjan J. Burghouts, Efstratios Gavves, Cees G. M. Snoek, David W. Zhang
Neural networks that process the parameters of other neural networks find applications in domains as diverse as classifying implicit neural representations, generating neural network weights, and predicting generalization errors.
1 code implementation • 20 Feb 2024 • Adeel Pervez, Francesco Locatello, Efstratios Gavves
This paper presents Mechanistic Neural Networks, a neural network design for machine learning applications in the sciences.
1 code implementation • 29 Jan 2024 • Jie Liu, Wenzhe Yin, Haochen Wang, Yunlu Chen, Jan-Jakob Sonke, Efstratios Gavves
Existing prototype-based methods rely on support prototypes to guide the segmentation of query point clouds, but they encounter challenges when significant object variations exist between the support prototypes and query features.
1 code implementation • CVPR 2024 • Samuele Papa, Riccardo Valperga, David Knigge, Miltiadis Kofinas, Phillip Lippe, Jan-Jakob Sonke, Efstratios Gavves
With this library, we perform a comprehensive study that investigates the effects of different hyperparameters on fitting NeFs for downstream tasks.
no code implementations • 14 Dec 2023 • Vincent Tao Hu, Wenzhe Yin, Pingchuan Ma, Yunlu Chen, Basura Fernando, Yuki M Asano, Efstratios Gavves, Pascal Mettes, Bjorn Ommer, Cees G. M. Snoek
In this paper, we propose \emph{Motion Flow Matching}, a novel generative model designed for human motion generation featuring efficient sampling and effectiveness in motion editing applications.
no code implementations • 15 Nov 2023 • Aviv Shamsian, David W. Zhang, Aviv Navon, Yan Zhang, Miltiadis Kofinas, Idan Achituve, Riccardo Valperga, Gertjan J. Burghouts, Efstratios Gavves, Cees G. M. Snoek, Ethan Fetaya, Gal Chechik, Haggai Maron
Learning in weight spaces, where neural networks process the weights of other deep neural networks, has emerged as a promising research direction with applications in various fields, from analyzing and editing neural fields and implicit neural representations, to network pruning and quantization.
1 code implementation • NeurIPS 2023 • Miltiadis Kofinas, Erik J. Bekkers, Naveen Shankar Nagaraja, Efstratios Gavves
Systems of interacting objects often evolve under the influence of field effects that govern their dynamics, yet previous works have abstracted away from such effects, and assume that systems evolve in a vacuum.
1 code implementation • ICCV 2023 • Mohammadreza Salehi, Efstratios Gavves, Cees G. M. Snoek, Yuki M. Asano
Our paper aims to address this gap by proposing a novel approach that incorporates temporal consistency in dense self-supervised learning.
no code implementations • 17 Jul 2023 • Samuele Papa, David M. Knigge, Riccardo Valperga, Nikita Moriakov, Miltos Kofinas, Jan-Jakob Sonke, Efstratios Gavves
Conventional Computed Tomography (CT) methods require large numbers of noise-free projections for accurate density reconstructions, limiting their applicability to the more complex class of Cone Beam Geometry CT (CBCT) reconstruction.
1 code implementation • 4 Jul 2023 • Alex Gabel, Victoria Klein, Riccardo Valperga, Jeroen S. W. Lamb, Kevin Webster, Rick Quax, Efstratios Gavves
The problem of detecting and quantifying the presence of symmetries in datasets is useful for model selection, generative modeling, and data analysis, amongst others.
1 code implementation • 16 Jun 2023 • Phillip Lippe, Sara Magliacane, Sindy Löwe, Yuki M. Asano, Taco Cohen, Efstratios Gavves
Identifying the causal variables of an environment and how to intervene on them is of core value in applications such as robotics and embodied AI.
1 code implementation • 1 Jun 2023 • Yongtuo Liu, Sara Magliacane, Miltiadis Kofinas, Efstratios Gavves
Dynamical systems with complex behaviours, e. g. immune system cells interacting with a pathogen, are commonly modelled by splitting the behaviour into different regimes, or modes, each with simpler dynamics, and then learning the switching behaviour from one mode to another.
1 code implementation • 23 Apr 2023 • Cilin Yan, Haochen Wang, Jie Liu, XiaoLong Jiang, Yao Hu, Xu Tang, Guoliang Kang, Efstratios Gavves
Click-based interactive segmentation aims to generate target masks via human clicking, which facilitates efficient pixel-level annotation and image editing.
1 code implementation • ICCV 2023 • Haochen Wang, Cilin Yan, Shuai Wang, XiaoLong Jiang, Xu Tang, Yao Hu, Weidi Xie, Efstratios Gavves
Video Instance Segmentation (VIS) aims at segmenting and categorizing objects in videos from a closed set of training categories, lacking the generalization ability to handle novel categories in real-world videos.
1 code implementation • NeurIPS 2023 • Ilze Amanda Auzina, Çağatay Yıldız, Sara Magliacane, Matthias Bethge, Efstratios Gavves
Neural ordinary differential equations (NODEs) have been proven useful for learning non-linear dynamics of arbitrary trajectories.
1 code implementation • 25 Jan 2023 • David M. Knigge, David W. Romero, Albert Gu, Efstratios Gavves, Erik J. Bekkers, Jakub M. Tomczak, Mark Hoogendoorn, Jan-Jakob Sonke
Performant Convolutional Neural Network (CNN) architectures must be tailored to specific tasks in order to consider the length, resolution, and dimensionality of the input data.
no code implementations • 9 Jan 2023 • Jie Liu, Yanqi Bao, Wenzhe Yin, Haochen Wang, Yang Gao, Jan-Jakob Sonke, Efstratios Gavves
However, the appearance variations between objects from the same category could be extremely large, leading to unreliable feature matching and query mask prediction.
Ranked #41 on Few-Shot Semantic Segmentation on PASCAL-5i (1-Shot)
no code implementations • 5 Oct 2022 • Adeel Pervez, Phillip Lippe, Efstratios Gavves
To solve the graph cuts our solution relies on an efficient, scalable, and differentiable quadratic programming approximation.
1 code implementation • 27 Jun 2022 • Leonard Bereska, Efstratios Gavves
Our results suggest that reservoir computing is a promising candidate framework for the continual learning of dynamical systems.
1 code implementation • 13 Jun 2022 • Phillip Lippe, Sara Magliacane, Sindy Löwe, Yuki M. Asano, Taco Cohen, Efstratios Gavves
To address this issue, we propose iCITRIS, a causal representation learning method that allows for instantaneous effects in intervened temporal sequences when intervention targets can be observed, e. g., as actions of an agent.
1 code implementation • 7 Jun 2022 • David W. Romero, David M. Knigge, Albert Gu, Erik J. Bekkers, Efstratios Gavves, Jakub M. Tomczak, Mark Hoogendoorn
The use of Convolutional Neural Networks (CNNs) is widespread in Deep Learning due to a range of desirable model properties which result in an efficient and effective machine learning framework.
1 code implementation • 28 May 2022 • Hossein Mirzaei, Mohammadreza Salehi, Sajjad Shahabi, Efstratios Gavves, Cees G. M. Snoek, Mohammad Sabokrou, Mohammad Hossein Rohban
Effectiveness of our method for both the near-distribution and standard novelty detection is assessed through extensive experiments on datasets in diverse applications such as medical images, object classification, and quality control.
Ranked #3 on Anomaly Detection on One-class CIFAR-10 (using extra training data)
no code implementations • CVPR 2022 • Jie Liu, Yanqi Bao, Guo-Sen Xie, Huan Xiong, Jan-Jakob Sonke, Efstratios Gavves
Specifically, in DPCN, a dynamic convolution module (DCM) is firstly proposed to generate dynamic kernels from support foreground, then information interaction is achieved by convolution operations over query features using these kernels.
Ranked #33 on Few-Shot Semantic Segmentation on PASCAL-5i (1-Shot)
1 code implementation • CVPR 2022 • Haochen Wang, Jiayi Shen, Yongtuo Liu, Yan Gao, Efstratios Gavves
To tackle this issue, we propose a Neighbor Transformer Network, or NFormer, which explicitly models interactions across all input images, thus suppressing outlier features and leading to more robust representations overall.
no code implementations • 31 Mar 2022 • Yunlu Chen, Basura Fernando, Hakan Bilen, Matthias Nießner, Efstratios Gavves
In this work, we address two key limitations of such representations, in failing to capture local 3D geometric fine details, and to learn from and generalize to shapes with unseen 3D transformations.
1 code implementation • 17 Mar 2022 • Amirhossein Habibian, Haitam Ben Yahia, Davide Abati, Efstratios Gavves, Fatih Porikli
By extensive experiments on a wide range of architectures, including the most efficient ones, we demonstrate that delta distillation sets a new state of the art in terms of accuracy vs. efficiency trade-off for semantic segmentation and object detection in videos.
Ranked #2 on Video Semantic Segmentation on Cityscapes val
1 code implementation • 7 Mar 2022 • Tessa van der Heiden, Herke van Hoof, Efstratios Gavves, Christoph Salge
We consider multi-agent reinforcement learning (MARL) for cooperative communication and coordination tasks.
Multi-agent Reinforcement Learning reinforcement-learning +1
1 code implementation • 7 Feb 2022 • Phillip Lippe, Sara Magliacane, Sindy Löwe, Yuki M. Asano, Taco Cohen, Efstratios Gavves
Understanding the latent causal factors of a dynamical system from visual observations is considered a crucial step towards agents reasoning in complex environments.
1 code implementation • NeurIPS 2021 • Miltiadis Kofinas, Naveen Shankar Nagaraja, Efstratios Gavves
Modelling interactions is critical in learning complex dynamical systems, namely systems of interacting objects with highly non-linear and time-dependent behaviour.
no code implementations • ICLR 2022 • Adeel Pervez, Efstratios Gavves
Stability regularization is method to make the output of continuous functions of Gaussian random variables close to discrete, that is binary or categorical, without the need for significant manual tuning.
no code implementations • 13 Sep 2021 • Yoni Schirris, Mendel Engelaer, Andreas Panteli, Hugo Mark Horlings, Efstratios Gavves, Jonas Teuwen
We present WeakSTIL, an interpretable two-stage weak label deep learning pipeline for scoring the percentage of stromal tumor infiltrating lymphocytes (sTIL%) in H&E-stained whole-slide images (WSIs) of breast cancer tissue.
2 code implementations • ICLR 2022 • Phillip Lippe, Taco Cohen, Efstratios Gavves
Learning the structure of a causal graphical model using both observational and interventional data is a fundamental problem in many scientific fields.
1 code implementation • 20 Jul 2021 • Yoni Schirris, Efstratios Gavves, Iris Nederlof, Hugo Mark Horlings, Jonas Teuwen
For MSI prediction in a tumor-annotated and color normalized subset of TCGA-CRC (n=360 patients), contrastive self-supervised learning improves the tile supervision baseline from 0. 77 to 0. 87 AUROC, on par with our proposed DeepSMILE method.
no code implementations • 14 Jul 2021 • Matthias Reisser, Christos Louizos, Efstratios Gavves, Max Welling
Federated learning (FL) has emerged as the predominant approach for collaborative training of neural network models across multiple users, without the need to gather the data at a central location.
1 code implementation • 2 Jun 2021 • Zenglin Shi, Yunlu Chen, Efstratios Gavves, Pascal Mettes, Cees G. M. Snoek
The state-of-the-art leverages deep networks to estimate the two core coefficients of the guided filter.
no code implementations • ICCV 2021 • Andreas Panteli, Jonas Teuwen, Hugo Horlings, Efstratios Gavves
However, outside the setting of regular images, we are often confronted with a different situation.
1 code implementation • 26 Feb 2021 • Changyong Oh, Roberto Bondesan, Efstratios Gavves, Max Welling
In this work we propose a batch Bayesian optimization method for combinatorial problems on permutations, which is well suited for expensive-to-evaluate objectives.
no code implementations • 25 Feb 2021 • Changyong Oh, Efstratios Gavves, Max Welling
In experiments, we demonstrate the improved sample efficiency of GP BO using FM kernels (BO-FM). On synthetic problems and hyperparameter optimization problems, BO-FM outperforms competitors consistently.
no code implementations • 1 Jan 2021 • Adeel Pervez, Efstratios Gavves
Variational autoencoders with deep hierarchies of stochastic layers have been known to suffer from the problem of posterior collapse, where the top layers fall back to the prior and become independent of input.
2 code implementations • CVPR 2021 • Deepak K. Gupta, Devanshu Arya, Efstratios Gavves
We further show that this change in orientation can be used to impose an additional motion constraint in Siamese tracking through imposing restriction on the change in orientation between two consecutive frames.
1 code implementation • 23 Nov 2020 • Maximilian Filtenborg, Efstratios Gavves, Deepak Gupta
Classically, visual object tracking involves following a target object throughout a given video, and it provides us the motion trajectory of the object.
no code implementations • 17 Oct 2020 • Mert Kilickaya, Noureldien Hussein, Efstratios Gavves, Arnold Smeulders
Our experiments show that SSC leads to an important increase in interaction recognition performance, while using much fewer parameters.
1 code implementation • ECCV 2020 • Yunlu Chen, Vincent Tao Hu, Efstratios Gavves, Thomas Mensink, Pascal Mettes, Pengwan Yang, Cees G. M. Snoek
In this paper, we define data augmentation between point clouds as a shortest path linear interpolation.
Ranked #3 on 3D Point Cloud Data Augmentation on ModelNet40
3D Point Cloud Classification 3D Point Cloud Data Augmentation +2
no code implementations • 30 Jun 2020 • Deepak K. Gupta, Efstratios Gavves, Arnold W. M. Smeulders
Specifically, we present structured dropout to mimick the change in latent codes under occlusion.
1 code implementation • ICLR 2021 • Phillip Lippe, Efstratios Gavves
Based on Categorical Normalizing Flows, we propose GraphCNF a permutation-invariant generative model on graphs.
no code implementations • 18 Mar 2020 • Noureldien Hussein, Efstratios Gavves, Arnold W. M. Smeulders
We study the three properties of PIC and demonstrate its effectiveness in recognizing the long-range activities of Charades, Breakfast, and MultiThumos.
no code implementations • MIDL 2019 • Andreas Panteli, Deepak K. Gupta, Nathan de Bruin, Efstratios Gavves
Tracking and segmentation of biological cells in video sequences is a challenging problem, especially due to the similarity of the cells and high levels of inherent noise.
no code implementations • 19 Oct 2019 • Deepak K. Gupta, Nathan de Bruijn, Andreas Panteli, Efstratios Gavves
U-Net and its variants have been demonstrated to work sufficiently well in biological cell tracking and segmentation.
no code implementations • 15 Oct 2019 • Tessa van der Heiden, Naveen Shankar Nagaraja, Christian Weiss, Efstratios Gavves
The Critic network is environmentally aware to prune trajectories that are in collision or are in violation with the environment.
no code implementations • 7 Oct 2019 • Tim R. Davidson, Jakub M. Tomczak, Efstratios Gavves
Learning suitable latent representations for observed, high-dimensional data is an important research topic underlying many recent advances in machine learning.
no code implementations • 3 Oct 2019 • Yunlu Chen, Thomas Mensink, Efstratios Gavves
We propose to model the effective receptive field of 2D convolution based on the scale and locality from the 3D neighborhood.
no code implementations • 25 Sep 2019 • Adeel Pervez, Taco Cohen, Efstratios Gavves
In this work we focus on stochastic networks with multiple layers of Boolean latent variables.
no code implementations • 7 Aug 2019 • Laurens Samson, Nanne van Noord, Olaf Booij, Michael Hofmann, Efstratios Gavves, Mohsen Ghafoorian
Adversarial training has been recently employed for realizing structured semantic segmentation, in which the aim is to preserve higher-level scene structural consistencies in dense predictions.
no code implementations • 5 Aug 2019 • Efstratios Gavves, Ran Tao, Deepak K. Gupta, Arnold W. M. Smeulders
Updating the tracker model with adverse bounding box predictions adds an unavoidable bias term to the learning.
no code implementations • 13 May 2019 • Noureldien Hussein, Efstratios Gavves, Arnold W. M. Smeulders
To represent them, related works opt for statistical pooling, which neglects the temporal structure.
Ranked #6 on Long-video Activity Recognition on Breakfast
no code implementations • ICLR 2019 • Peter O'Connor, Efstratios Gavves, Max Welling
In response to this, Scellier & Bengio (2017) proposed Equilibrium Propagation - a method for gradient-based train- ing of neural networks which uses only local learning rules and, crucially, does not rely on neurons having a mechanism for back-propagating an error gradient.
2 code implementations • CVPR 2019 • Shuai Liao, Efstratios Gavves, Cees G. M. Snoek
We observe many continuous output problems in computer vision are naturally contained in closed geometrical manifolds, like the Euler angles in viewpoint estimation or the normals in surface normal estimation.
1 code implementation • NeurIPS 2019 • Changyong Oh, Jakub M. Tomczak, Efstratios Gavves, Max Welling
On this combinatorial graph, we propose an ARD diffusion kernel with which the GP is able to model high-order interactions between variables leading to better performance.
3 code implementations • CVPR 2019 • Noureldien Hussein, Efstratios Gavves, Arnold W. M. Smeulders
This paper focuses on the temporal aspect for recognizing human activities in videos; an important visual cue that has long been undervalued.
Ranked #7 on Long-video Activity Recognition on Breakfast
1 code implementation • ICLR 2019 • Christos Louizos, Matthias Reisser, Tijmen Blankevoort, Efstratios Gavves, Max Welling
Neural network quantization has become an important research area due to its great impact on deployment of large models on resource constrained devices.
no code implementations • 2 Aug 2018 • Sindi Shkodrani, Michael Hofmann, Efstratios Gavves
To demonstrate the effectiveness of our proposed framework, we modify associative domain adaptation to work well on source and target data batches with unequal class distributions.
no code implementations • 18 Jul 2018 • Amir Ghodrati, Efstratios Gavves, Cees G. M. Snoek
Time-aware encoding of frame sequences in a video is a fundamental problem in video understanding.
1 code implementation • ICML 2018 • Changyong Oh, Efstratios Gavves, Max Welling
A major challenge in Bayesian Optimization is the boundary issue (Swersky, 2017) where an algorithm spends too many evaluations near the boundary of its search space.
no code implementations • ECCV 2018 • Jack Valmadre, Luca Bertinetto, João F. Henriques, Ran Tao, Andrea Vedaldi, Arnold Smeulders, Philip Torr, Efstratios Gavves
We introduce the OxUvA dataset and benchmark for evaluating single-object tracking algorithms.
no code implementations • ICLR 2018 • Riaan Zoetmulder, Efstratios Gavves, Peter O'Connor
Neural networks make mistakes.
1 code implementation • 4 Dec 2017 • Mircea Mironenco, Dana Kianfar, Ke Tran, Evangelos Kanoulas, Efstratios Gavves
In this work we propose a blackbox intervention method for visual dialog models, with the aim of assessing the contribution of individual linguistic or visual components.
1 code implementation • 28 Nov 2017 • Ran Tao, Efstratios Gavves, Arnold W. M. Smeulders
Long-term tracking requires extreme stability to the multitude of model updates and robustness to the disappearance and loss of the target as such will inevitably happen.
no code implementations • CVPR 2017 • Zhenyang Li, Ran Tao, Efstratios Gavves, Cees G. M. Snoek, Arnold W. M. Smeulders
This paper strives to track a target object in a video.
Ranked #17 on Referring Expression Segmentation on J-HMDB
1 code implementation • ICLR 2018 • Peter O'Connor, Efstratios Gavves, Max Welling
We present a variant on backpropagation for neural networks in which computation scales with the rate of change of the data - not the rate at which we process the data.
no code implementations • CVPR 2017 • Noureldien Hussein, Efstratios Gavves, Arnold W. M. Smeulders
Given a text describing a novel event, the goal is to rank related videos accordingly.
3 code implementations • 2 Dec 2016 • Hakan Bilen, Basura Fernando, Efstratios Gavves, Andrea Vedaldi
This is a powerful idea because it allows to convert any video to an image so that existing CNN models pre-trained for the analysis of still images can be immediately extended to videos.
no code implementations • CVPR 2017 • Basura Fernando, Hakan Bilen, Efstratios Gavves, Stephen Gould
On action classification, our method obtains 60. 3\% on the UCF101 dataset using only UCF101 data for training which is approximately 10% better than current state-of-the-art self-supervised learning methods.
Ranked #47 on Self-Supervised Action Recognition on UCF101
1 code implementation • 6 Jul 2016 • Zhenyang Li, Efstratios Gavves, Mihir Jain, Cees G. M. Snoek
We present a new architecture for end-to-end sequence learning of actions in video, we call VideoLSTM.
1 code implementation • CVPR 2016 • Hakan Bilen, Basura Fernando, Efstratios Gavves, Andrea Vedaldi, Stephen Gould
We introduce the concept of dynamic image, a novel compact representation of videos useful for video analysis especially when convolutional neural networks (CNNs) are used.
Ranked #62 on Action Recognition on HMDB-51
no code implementations • CVPR 2016 • Ran Tao, Efstratios Gavves, Arnold W. M. Smeulders
In this paper we present a tracker, which is radically different from state-of-the-art trackers: we apply no model updating, no occlusion detection, no combination of trackers, no geometric matching, and still deliver state-of-the-art tracking performance, as demonstrated on the popular online tracking benchmark (OTB) and six very challenging YouTube videos.
no code implementations • 21 Apr 2016 • Roeland De Geest, Efstratios Gavves, Amir Ghodrati, Zhenyang Li, Cees Snoek, Tinne Tuytelaars
Third, the start of the action is unknown, so it is unclear over what time window the information should be integrated.
1 code implementation • 6 Dec 2015 • Basura Fernando, Efstratios Gavves, Jose Oramas, Amir Ghodrati, Tinne Tuytelaars
We show how the parameters of a function that has been fit to the video data can serve as a robust new video representation.
no code implementations • ICCV 2015 • Basura Fernando, Efstratios Gavves, Damien Muselet, Tinne Tuytelaars
We present a supervised learning to rank algorithm that effectively orders images by exploiting the structure in image sequences.
no code implementations • ICCV 2015 • Xu Jia, Efstratios Gavves, Basura Fernando, Tinne Tuytelaars
In this work we focus on the problem of image caption generation.
no code implementations • 29 Nov 2015 • Basura Fernando, Efstratios Gavves, Damien Muselet, Tinne Tuytelaars
We present a supervised learning to rank algorithm that effectively orders images by exploiting the structure in image sequences.
no code implementations • CVPR 2016 • Konstantinos Rematas, Tobias Ritschel, Mario Fritz, Efstratios Gavves, Tinne Tuytelaars
Undoing the image formation process and therefore decomposing appearance into its intrinsic properties is a challenging task due to the under-constraint nature of this inverse problem.
no code implementations • ICCV 2015 • Efstratios Gavves, Thomas Mensink, Tatiana Tommasi, Cees G. M. Snoek, Tinne Tuytelaars
How can we reuse existing knowledge, in the form of available datasets, when solving a new and apparently unrelated target task from a set of unlabeled data?
1 code implementation • 16 Sep 2015 • Xu Jia, Efstratios Gavves, Basura Fernando, Tinne Tuytelaars
In this work we focus on the problem of image caption generation.
no code implementations • CVPR 2015 • Basura Fernando, Efstratios Gavves, Jose Oramas M., Amir Ghodrati, Tinne Tuytelaars
We postulate that a function capable of ordering the frames of a video temporally (based on the appearance) captures well the evolution of the appearance within the video.
no code implementations • CVPR 2014 • Thomas Mensink, Efstratios Gavves, Cees G. M. Snoek
In this paper we aim for zero-shot classification, that is visual recognition of an unseen class by using knowledge transfer from known classes.
no code implementations • CVPR 2014 • Ran Tao, Efstratios Gavves, Cees G. M. Snoek, Arnold W. M. Smeulders
This paper aims for generic instance search from a single example.