Search Results for author: Ziang Yan

Found 12 papers, 5 papers with code

An End-to-End Framework for Marketing Effectiveness Optimization under Budget Constraint

no code implementations9 Feb 2023 Ziang Yan, Shusen Wang, Guorui Zhou, Jingjian Lin, Peng Jiang

Recent advances in this field often address the budget allocation problem using a two-stage paradigm: the first stage estimates the individual-level treatment effects using causal inference algorithms, and the second stage invokes integer programming techniques to find the optimal budget allocation solution.

Causal Inference Marketing

Sill-Net: Feature Augmentation with Separated Illumination Representation

1 code implementation6 Feb 2021 Haipeng Zhang, Zhong Cao, Ziang Yan, ChangShui Zhang

For visual object recognition tasks, the illumination variations can cause distinct changes in object appearance and thus confuse the deep neural network based recognition models.

Few-Shot Image Classification Object +2

Policy-Driven Attack: Learning to Query for Hard-label Black-box Adversarial Examples

no code implementations ICLR 2021 Ziang Yan, Yiwen Guo, Jian Liang, ChangShui Zhang

To craft black-box adversarial examples, adversaries need to query the victim model and take proper advantage of its feedback.

Image Classification

Learning Fast Approximations of Sparse Nonlinear Regression

1 code implementation26 Oct 2020 Yuhai Song, Zhong Cao, Kailun Wu, Ziang Yan, ChangShui Zhang

The idea of unfolding iterative algorithms as deep neural networks has been widely applied in solving sparse coding problems, providing both solid theoretical analysis in convergence rate and superior empirical performance.

regression

FMA-ETA: Estimating Travel Time Entirely Based on FFN With Attention

no code implementations7 Jun 2020 Yiwen Sun, Yulu Wang, Kun fu, Zheng Wang, Ziang Yan, Chang-Shui Zhang, Jieping Ye

Estimated time of arrival (ETA) is one of the most important services in intelligent transportation systems and becomes a challenging spatial-temporal (ST) data mining task in recent years.

Adversarial Margin Maximization Networks

1 code implementation14 Nov 2019 Ziang Yan, Yiwen Guo, Chang-Shui Zhang

The tremendous recent success of deep neural networks (DNNs) has sparked a surge of interest in understanding their predictive ability.

Subspace Attack: Exploiting Promising Subspaces for Query-Efficient Black-box Attacks

2 code implementations NeurIPS 2019 Ziang Yan, Yiwen Guo, Chang-Shui Zhang

Unlike the white-box counterparts that are widely studied and readily accessible, adversarial examples in black-box settings are generally more Herculean on account of the difficulty of estimating gradients.

Adversarial Attack

Deep Defense: Training DNNs with Improved Adversarial Robustness

1 code implementation NeurIPS 2018 Ziang Yan, Yiwen Guo, Chang-Shui Zhang

Despite the efficacy on a variety of computer vision tasks, deep neural networks (DNNs) are vulnerable to adversarial attacks, limiting their applications in security-critical systems.

Adversarial Robustness

Zero-Shot Learning by Generating Pseudo Feature Representations

no code implementations19 Mar 2017 Jiang Lu, Jin Li, Ziang Yan, Chang-Shui Zhang

Given the dataset of seen classes and side information of unseen classes (e. g. attributes), we synthesize feature-level pseudo representations for novel concepts, which allows us access to the formulation of unseen class predictor.

Attribute Novel Concepts +2

Weakly- and Semi-Supervised Object Detection with Expectation-Maximization Algorithm

no code implementations28 Feb 2017 Ziang Yan, Jian Liang, Weishen Pan, Jin Li, Chang-Shui Zhang

Object detection when provided image-level labels instead of instance-level labels (i. e., bounding boxes) during training is an important problem in computer vision, since large scale image datasets with instance-level labels are extremely costly to obtain.

object-detection Object Detection +1

Neural Network Architecture Optimization through Submodularity and Supermodularity

no code implementations1 Sep 2016 Junqi Jin, Ziang Yan, Kun fu, Nan Jiang, Chang-Shui Zhang

Deep learning models' architectures, including depth and width, are key factors influencing models' performance, such as test accuracy and computation time.

Optimizing Recurrent Neural Networks Architectures under Time Constraints

no code implementations29 Aug 2016 Junqi Jin, Ziang Yan, Kun fu, Nan Jiang, Chang-Shui Zhang

A greedy algorithm with bounds is suggested to solve the transformed problem.

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