Search Results for author: Tai Sing Lee

Found 17 papers, 3 papers with code

Does resistance to style-transfer equal Global Shape Bias? Measuring network sensitivity to global shape configuration

no code implementations11 Oct 2023 Ziqi Wen, Tianqin Li, Zhi Jing, Tai Sing Lee

The current benchmark for evaluating a model's global shape bias is a set of style-transferred images with the assumption that resistance to the attack of style transfer is related to the development of global structure sensitivity in the model.

Image Classification Object Recognition +3

A large calcium-imaging dataset reveals a systematic V4 organization for natural scenes

no code implementations3 Jul 2023 Tianye Wang, Haoxuan Yao, Tai Sing Lee, Jiayi Hong, Yang Li, Hongfei Jiang, Ian Max Andolina, Shiming Tang

To gain deeper insights into visual processing of natural scenes, we utilized widefield calcium-imaging of primate V4 in response to many natural images, generating a large dataset of columnar-scale responses.

Relating Human Perception of Musicality to Prediction in a Predictive Coding Model

2 code implementations29 Oct 2022 Nikolas McNeal, Jennifer Huang, Aniekan Umoren, Shuqi Dai, Roger Dannenberg, Richard Randall, Tai Sing Lee

Our findings suggest that predictability is correlated with human perception of musicality and that a predictive coding neural network trained on music can be used to characterize the features and motifs contributing to human perception of music.

Self-Supervised Learning

Recurrent networks improve neural response prediction and provide insights into underlying cortical circuits

no code implementations2 Oct 2021 Yimeng Zhang, Harold Rockwell, Sicheng Dai, Ge Huang, Stephen Tsou, Yuanyuan Wei, Tai Sing Lee

Feedforward CNN models have proven themselves in recent years as state-of-the-art models for predicting single-neuron responses to natural images in early visual cortical neurons.

Prototype memory and attention mechanisms for few shot image generation

no code implementations ICLR 2022 Tianqin Li, Zijie Li, Andrew Luo, Harold Rockwell, Amir Barati Farimani, Tai Sing Lee

To test our proposal, we show in a few-shot image generation task, that having a prototype memory during attention can improve image synthesis quality, learn interpretable visual concept clusters, as well as improve the robustness of the model.

Image Generation Online Clustering

Recurrent Feedback Improves Feedforward Representations in Deep Neural Networks

no code implementations22 Dec 2019 Siming Yan, Xuyang Fang, Bowen Xiao, Harold Rockwell, Yimeng Zhang, Tai Sing Lee

The abundant recurrent horizontal and feedback connections in the primate visual cortex are thought to play an important role in bringing global and semantic contextual information to early visual areas during perceptual inference, helping to resolve local ambiguity and fill in missing details.

A Normative Theory for Causal Inference and Bayes Factor Computation in Neural Circuits

1 code implementation NeurIPS 2019 Wenhao Zhang, Si Wu, Brent Doiron, Tai Sing Lee

This study provides a normative theory for how Bayesian causal inference can be implemented in neural circuits.

Causal Inference Model Selection

Visual Sequence Learning in Hierarchical Prediction Networks and Primate Visual Cortex

no code implementations NeurIPS 2019 Jie-Lin Qiu, Ge Huang, Tai Sing Lee

The model is a hierarchical recurrent neural model that learns to predict video sequences using the incoming video signals as teaching signals.

Complexity and Diversity in Sparse Code Priors Improve Receptive Field Characterization of Macaque V1 Neurons

no code implementations19 Nov 2019 Ziniu Wu, Harold Rockwell, Yimeng Zhang, Shiming Tang, Tai Sing Lee

System identification techniques -- projection pursuit regression models (PPRs) and convolutional neural networks (CNNs) -- provide state-of-the-art performance in predicting visual cortical neurons' responses to arbitrary input stimuli.

A Model Cortical Network for Spatiotemporal Sequence Learning and Prediction

no code implementations ICLR 2019 Jie-Lin Qiu, Ge Huang, Tai Sing Lee

In this paper we developed a hierarchical network model, called Hierarchical Prediction Network (HPNet) to understand how spatiotemporal memories might be learned and encoded in a representational hierarchy for predicting future video frames.

Self-Supervised Learning

A Neurally-Inspired Hierarchical Prediction Network for Spatiotemporal Sequence Learning and Prediction

no code implementations25 Jan 2019 Jie-Lin Qiu, Ge Huang, Tai Sing Lee

Within each level, the feed-forward path and the feedback path intersect in a recurrent gated circuit, instantiated in a LSTM module, to generate a prediction or explanation of the incoming signals.

Clustering

Learning Robust Object Recognition Using Composed Scenes from Generative Models

no code implementations22 May 2017 Hao Wang, Xingyu Lin, Yimeng Zhang, Tai Sing Lee

Trained on imagined occluded scenarios under the object persistence constraint, our network discovered more subtle and localized image features that were neglected by the original network for object classification, obtaining better separability of different object classes in the feature space.

Object Object Recognition

Learning to Associate Words and Images Using a Large-scale Graph

no code implementations22 May 2017 Heqing Ya, Haonan Sun, Jeffrey Helt, Tai Sing Lee

In this particular problem, a user is presented with a deformed picture of a Chinese phrase and eight low-resolution images.

Transfer of View-manifold Learning to Similarity Perception of Novel Objects

no code implementations31 Mar 2017 Xingyu Lin, Hao Wang, Zhihao LI, Yimeng Zhang, Alan Yuille, Tai Sing Lee

We develop a model of perceptual similarity judgment based on re-training a deep convolution neural network (DCNN) that learns to associate different views of each 3D object to capture the notion of object persistence and continuity in our visual experience.

Metric Learning Object

Predictive Encoding of Contextual Relationships for Perceptual Inference, Interpolation and Prediction

no code implementations14 Nov 2014 Ming-Min Zhao, Chengxu Zhuang, Yizhou Wang, Tai Sing Lee

We propose a new neurally-inspired model that can learn to encode the global relationship context of visual events across time and space and to use the contextual information to modulate the analysis by synthesis process in a predictive coding framework.

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