Search Results for author: Nikolaos Karianakis

Found 11 papers, 2 papers with code

GEMEL: Model Merging for Memory-Efficient, Real-Time Video Analytics at the Edge

no code implementations19 Jan 2022 Arthi Padmanabhan, Neil Agarwal, Anand Iyer, Ganesh Ananthanarayanan, Yuanchao Shu, Nikolaos Karianakis, Guoqing Harry Xu, Ravi Netravali

Video analytics pipelines have steadily shifted to edge deployments to reduce bandwidth overheads and privacy violations, but in doing so, face an ever-growing resource tension.

Management

Ekya: Continuous Learning of Video Analytics Models on Edge Compute Servers

no code implementations19 Dec 2020 Romil Bhardwaj, Zhengxu Xia, Ganesh Ananthanarayanan, Junchen Jiang, Nikolaos Karianakis, Yuanchao Shu, Kevin Hsieh, Victor Bahl, Ion Stoica

Compressed models that are deployed on the edge servers for inference suffer from data drift, where the live video data diverges from the training data.

HyperSTAR: Task-Aware Hyperparameters for Deep Networks

no code implementations CVPR 2020 Gaurav Mittal, Chang Liu, Nikolaos Karianakis, Victor Fragoso, Mei Chen, Yun Fu

To reduce HPO time, we present HyperSTAR (System for Task Aware Hyperparameter Recommendation), a task-aware method to warm-start HPO for deep neural networks.

Hyperparameter Optimization Image Classification

Unsupervised Domain Adaptation for Object Detection via Cross-Domain Semi-Supervised Learning

1 code implementation17 Nov 2019 Fuxun Yu, Di Wang, Yinpeng Chen, Nikolaos Karianakis, Tong Shen, Pei Yu, Dimitrios Lymberopoulos, Sidi Lu, Weisong Shi, Xiang Chen

In this work, we show that such adversarial-based methods can only reduce the domain style gap, but cannot address the domain content distribution gap that is shown to be important for object detectors.

Object object-detection +2

Conscious Inference for Object Detection

no code implementations27 Sep 2018 Jiahuan Zhou, Nikolaos Karianakis, Ying Wu, Gang Hua

Current Convolutional Neural Network (CNN)-based object detection models adopt strictly feedforward inference to predict the final detection results.

6D Pose Estimation using RGB Object +2

Multi-View Feature Engineering and Learning

no code implementations CVPR 2015 Jingming Dong, Nikolaos Karianakis, Damek Davis, Joshua Hernandez, Jonathan Balzer, Stefano Soatto

We frame the problem of local representation of imaging data as the computation of minimal sufficient statistics that are invariant to nuisance variability induced by viewpoint and illumination.

Feature Engineering

An Empirical Evaluation of Current Convolutional Architectures' Ability to Manage Nuisance Location and Scale Variability

no code implementations CVPR 2016 Nikolaos Karianakis, Jingming Dong, Stefano Soatto

We conduct an empirical study to test the ability of Convolutional Neural Networks (CNNs) to reduce the effects of nuisance transformations of the input data, such as location, scale and aspect ratio.

General Classification

Boosting Convolutional Features for Robust Object Proposals

no code implementations21 Mar 2015 Nikolaos Karianakis, Thomas J. Fuchs, Stefano Soatto

Modern detection algorithms like Regions with CNNs (Girshick et al., 2014) rely on Selective Search (Uijlings et al., 2013) to propose regions which with high probability represent objects, where in turn CNNs are deployed for classification.

General Classification Image Classification +4

Visual Scene Representations: Contrast, Scaling and Occlusion

no code implementations20 Dec 2014 Stefano Soatto, Jingming Dong, Nikolaos Karianakis

We study the structure of representations, defined as approximations of minimal sufficient statistics that are maximal invariants to nuisance factors, for visual data subject to scaling and occlusion of line-of-sight.

Two-sample testing

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