Search Results for author: Mahdi M. Kalayeh

Found 9 papers, 0 papers with code

On Negative Sampling for Audio-Visual Contrastive Learning from Movies

no code implementations29 Apr 2022 Mahdi M. Kalayeh, Shervin Ardeshir, Lingyi Liu, Nagendra Kamath, Ashok Chandrashekar

The abundance and ease of utilizing sound, along with the fact that auditory clues reveal a plethora of information about what happens in a scene, make the audio-visual space an intuitive choice for representation learning.

Action Recognition Audio Classification +3

Watching Too Much Television is Good: Self-Supervised Audio-Visual Representation Learning from Movies and TV Shows

no code implementations NeurIPS 2021 Mahdi M. Kalayeh, Nagendra Kamath, Lingyi Liu, Ashok Chandrashekar

The abundance and ease of utilizing sound, along with the fact that auditory clues reveal so much about what happens in the scene, make the audio-visual space a perfectly intuitive choice for self-supervised representation learning.

Contrastive Learning Representation Learning +1

Training Faster by Separating Modes of Variation in Batch-normalized Models

no code implementations7 Jun 2018 Mahdi M. Kalayeh, Mubarak Shah

We show that assuming samples within a mini-batch are from the same probability density function, then BN is identical to the Fisher vector of a Gaussian distribution.

Image Classification

Human Semantic Parsing for Person Re-identification

no code implementations CVPR 2018 Mahdi M. Kalayeh, Emrah Basaran, Muhittin Gokmen, Mustafa E. Kamasak, Mubarak Shah

In this paper, we propose to adopt human semantic parsing which, due to its pixel-level accuracy and capability of modeling arbitrary contours, is naturally a better alternative.

Person Re-Identification Representation Learning +1

Understanding Trajectory Behavior: A Motion Pattern Approach

no code implementations4 Jan 2015 Mahdi M. Kalayeh, Stephen Mussmann, Alla Petrakova, Niels da Vitoria Lobo, Mubarak Shah

In the second phase, via a Kmeans clustering approach, we create motion components by clustering the flow vectors with respect to their location and velocity.

Clustering Trajectory Clustering

Recognition of Complex Events: Exploiting Temporal Dynamics between Underlying Concepts

no code implementations CVPR 2014 Subhabrata Bhattacharya, Mahdi M. Kalayeh, Rahul Sukthankar, Mubarak Shah

While approaches based on bags of features excel at low-level action classification, they are ill-suited for recognizing complex events in video, where concept-based temporal representations currently dominate.

Action Classification Event Detection +3

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