Search Results for author: Jaehoon Cha

Found 5 papers, 1 papers with code

Feature-Action Design Patterns for Storytelling Visualizations with Time Series Data

no code implementations5 Feb 2024 Saiful Khan, Scott Jones, Benjamin Bach, Jaehoon Cha, Min Chen, Julie Meikle, Jonathan C Roberts, Jeyan Thiyagalingam, Jo Wood, Panagiotis D. Ritsos

Motivated initially by the need to communicate time series data during the COVID-19 pandemic, we developed a novel computer-assisted method for meta-authoring of stories, which enables the design of storyboards that include feature-action patterns in anticipation of potential features that may appear in dynamically arrived or selected data.

Time Series

Disentangling Autoencoders (DAE)

no code implementations20 Feb 2022 Jaehoon Cha, Jeyan Thiyagalingam

Noting the importance of factorizing (or disentangling) the latent space, we propose a novel, non-probabilistic disentangling framework for autoencoders, based on the principles of symmetry transformations in group-theory.

Disentanglement

Hierarchical Auxiliary Learning

no code implementations3 Jun 2019 Jaehoon Cha, Kyeong Soo Kim, Sanghyuk Lee

Conventional application of convolutional neural networks (CNNs) for image classification and recognition is based on the assumption that all target classes are equal(i. e., no hierarchy) and exclusive of one another (i. e., no overlap).

Auxiliary Learning Classification +2

On the Transformation of Latent Space in Autoencoders

no code implementations24 Jan 2019 Jaehoon Cha, Kyeong Soo Kim, Sanghyuk Lee

Noting the importance of the latent variables in inference and learning, we propose a novel framework for autoencoders based on the homeomorphic transformation of latent variables, which could reduce the distance between vectors in the transformed space, while preserving the topological properties of the original space, and investigate the effect of the latent space transformation on learning generative models and denoising corrupted data.

Denoising

Large-Scale Location-Aware Services in Access: Hierarchical Building/Floor Classification and Location Estimation using Wi-Fi Fingerprinting Based on Deep Neural Networks

2 code implementations3 Oct 2017 Kyeong Soo Kim, Ruihao Wang, Zhenghang Zhong, Zikun Tan, Haowei Song, Jaehoon Cha, Sanghyuk Lee

One of key technologies for future large-scale location-aware services in access is a scalable indoor localization technique.

Networking and Internet Architecture C.2.1; I.2.6; I.5.1; I.5.2; I.5.4; I.5.5

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