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Akang Wang

8 accepted papers

2026

[CLS] is Not Enough: Multi-Label Recognition via Patch-Level Inference and Adaptive Aggregation

ICML 2026poster

Vision-Language Models such as CLIP exhibit strong zero-shot recognition capability by aligning images with textual concepts, yet they often underperform on multi-label recognition where multiple objects co-exist. A key bottleneck is that the CLS token, as a single global visual representation, is i…

Cited by 0SourceScholar
2025

QuadEnhancer: Leveraging Quadratic Transformations to Enhance Deep Neural Networks

NeurIPS 2025poster

The combination of linear transformations and nonlinear activation functions forms the foundation of most modern deep neural networks, enabling them to approximate highly complex functions. This paper explores the introduction of quadratic transformations to further increase the nonlinearity of the…

Cited by 0SourceScholar
2025

ROS: A GNN-based Relax-Optimize-and-Sample Framework for Max-$k$-Cut Problems

ICML 2025poster

The Max-$k$-Cut problem is a fundamental combinatorial optimization challenge that generalizes the classic $\mathcal{NP}$-complete Max-Cut problem. While relaxation techniques are commonly employed to tackle Max-$k$-Cut, they often lack guarantees of equivalence between the solutions of the original…

Cited by 0SourcePDFScholar
2025

When GNNs meet symmetry in ILPs: an orbit-based feature augmentation approach

ICLR 2025poster

A common characteristic in integer linear programs (ILPs) is symmetry, allowing variables to be permuted without altering the underlying problem structure. Recently, GNNs have emerged as a promising approach for solving ILPs. However, a significant challenge arises when applying GNNs to ILPs with s…

2024

IPM-LSTM: A Learning-Based Interior Point Method for Solving Nonlinear Programs

NeurIPS 2024poster

Solving constrained nonlinear programs (NLPs) is of great importance in various domains such as power systems, robotics, and wireless communication networks. One widely used approach for addressing NLPs is the interior point method (IPM). The most computationally expensive procedure in IPMs is to so…

2024

PDHG-Unrolled Learning-to-Optimize Method for Large-Scale Linear Programming

ICML 2024poster

Solving large-scale linear programming (LP) problems is an important task in various areas such as communication networks, power systems, finance and logistics. Recently, two distinct approaches have emerged to expedite LP solving: (i) First-order methods (FOMs); (ii) Learning to optimize (L2O). In…

2024

SymILO: A Symmetry-Aware Learning Framework for Integer Linear Optimization

NeurIPS 2024poster

Integer linear programs (ILPs) are commonly employed to model diverse practical problems such as scheduling and planning. Recently, machine learning techniques have been utilized to solve ILPs. A straightforward idea is to train a model via supervised learning, with an ILP as the input and an opti…

2023

A GNN-Guided Predict-and-Search Framework for Mixed-Integer Linear Programming

ICLR 2023poster

Mixed-integer linear programming (MILP) is widely employed for modeling combinatorial optimization problems. In practice, similar MILP instances with only coefficient variations are routinely solved, and machine learning (ML) algorithms are capable of capturing common patterns across these MILP inst…