Search Results for author: Shohreh Deldari

Found 7 papers, 4 papers with code

COCOA: Cross Modality Contrastive Learning for Sensor Data

1 code implementation31 Jul 2022 Shohreh Deldari, Hao Xue, Aaqib Saeed, Daniel V. Smith, Flora D. Salim

Contrastive Learning (CL) is one of the most well-known approaches in SSL that attempts to learn general, informative representations of data.

Contrastive Learning Self-Supervised Learning

Beyond Just Vision: A Review on Self-Supervised Representation Learning on Multimodal and Temporal Data

no code implementations6 Jun 2022 Shohreh Deldari, Hao Xue, Aaqib Saeed, Jiayuan He, Daniel V. Smith, Flora D. Salim

Unlike existing reviews of SSRL that have pre-dominately focused upon methods in the fields of CV or NLP for a single modality, we aim to provide the first comprehensive review of multimodal self-supervised learning methods for temporal data.

Representation Learning Self-Supervised Learning +2

Time Series Change Point Detection with Self-Supervised Contrastive Predictive Coding

2 code implementations28 Nov 2020 Shohreh Deldari, Daniel V. Smith, Hao Xue, Flora D. Salim

Change Point Detection (CPD) methods identify the times associated with changes in the trends and properties of time series data in order to describe the underlying behaviour of the system.

Anomaly Detection Change Point Detection +4

ESPRESSO: Entropy and ShaPe awaRe timE-Series SegmentatiOn for processing heterogeneous sensor data

1 code implementation24 Jul 2020 Shohreh Deldari, Daniel V. Smith, Amin Sadri, Flora D. Salim

Extracting informative and meaningful temporal segments from high-dimensional wearable sensor data, smart devices, or IoT data is a vital preprocessing step in applications such as Human Activity Recognition (HAR), trajectory prediction, gesture recognition, and lifelogging.

Ranked #3 on Change Point Detection on TSSB (Covering metric)

Change Point Detection Gesture Recognition +4

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