activity
20212026
most citedWasserstein Task Embedding for Measuring Task Similarities

3 citations · 10 across the 20 of their papers we have counts for

collaborators

22 papers

cs.CR2026

Nudge the Judge: Uncovering Program Decision Hijacking in Real-World Jev Applications

Yang Luo, Tiantian Ji, Zifeng Kang +4

System One models such as Jev change how software makes decisions by mapping open-ended semantic contexts into structured judgments that directly drive program execution. However,…

cs.CV2026

TraceCLIP: Recovering Local Semantics from Patch-to-CLS Contributions

Xinran Liu, Shouqian Shi, Yutong Chen +3

Dense vision-language understanding, including object localization, region recognition, and open-vocabulary semantic segmentation, requires associating language concepts with spati…

cs.AI2026

StructBreak: Structural Cognitive Overload-Induced Safety Failures in MLLMs

Yang Luo, Xinran Liu, Tiantian Ji +3

Multimodal Large Language Models (MLLMs) excel at structural reasoning yet suffer from a sharp logical brittleness in structural consistency. We term this phenomenon Structural Cog…

cs.CR2026

ShadowMerge: A Novel Poisoning Attack on Graph-Based Agent Memory via Relation-Channel Conflicts

Yang Luo, Zifeng Kang, Tiantian Ji +4

Graph-based agent memory is increasingly used in LLM agents to support structured long-term recall and multi-hop reasoning, but it also creates a new poisoning surface: an attacker…

cs.LG2026

Min Generalized Sliced Gromov Wasserstein: A Scalable Path to Gromov Wasserstein

Ashkan Shahbazi, Xinran Liu, Ping He +1

We propose min Generalized Sliced Gromov--Wasserstein (min-GSGW), a sliced formulation for the Gromov--Wasserstein (GW) problem using expressive generalized slicers. The key idea i…

cs.LG2025

LUNA: Linear Universal Neural Attention with Generalization Guarantees

Ashkan Shahbazi, Ping He, Ali Abbasi +6

Scaling attention faces a critical bottleneck: the quadratic computational cost of softmax attention, which limits its application in long-sequence domains. Whil…

cs.CV2025

Efficient Transferable Optimal Transport via Min-Sliced Transport Plans

Xinran Liu, Elaheh Akbari, Rocio Diaz Martin +2

Optimal Transport (OT) offers a powerful framework for finding correspondences between distributions and addressing matching and alignment problems in various areas of computer vis…

cs.LG2025

EMPEROR: Efficient Moment-Preserving Representation of Distributions

Xinran Liu, Shansita D. Sharma, Soheil Kolouri

We introduce EMPEROR (Efficient Moment-Preserving Representation of Distributions), a mathematically rigorous and computationally efficient framework for representing high-dimensio…

cs.LG2025

Constrained Sliced Wasserstein Embedding

Navid NaderiAlizadeh, Darian Salehi, Xinran Liu +1

Sliced Wasserstein (SW) distances offer an efficient method for comparing high-dimensional probability measures by projecting them onto multiple 1-dimensional probability distribut…

cs.LG2025

Policy Search, Retrieval, and Composition via Task Similarity in Collaborative Agentic Systems

Saptarshi Nath, Christos Peridis, Eseoghene Benjamin +7

Agentic AI aims to create systems that set their own goals, adapt proactively to change, and refine behavior through continuous experience. Recent advances suggest that, when facin…

cs.LG2025

Fused Partial Gromov-Wasserstein for Structured Objects

Yikun Bai, Shuang Wang, Huy Tran +3

Structured data, such as graphs, is vital in machine learning due to its capacity to capture complex relationships and interactions. In recent years, the Fused Gromov-Wasserstein (…

cs.LG2025

ESPFormer: Doubly-Stochastic Attention with Expected Sliced Transport Plans

Ashkan Shahbazi, Elaheh Akbari, Darian Salehi +3

While self-attention has been instrumental in the success of Transformers, it can lead to over-concentration on a few tokens during training, resulting in suboptimal information fl…

cs.LG2024

Linear Spherical Sliced Optimal Transport: A Fast Metric for Comparing Spherical Data

Xinran Liu, Yikun Bai, Rocío Díaz Martín +5

Efficient comparison of spherical probability distributions becomes important in fields such as computer vision, geosciences, and medicine. Sliced optimal transport distances, such…

cs.LG2024

Expected Sliced Transport Plans

Xinran Liu, Rocío Díaz Martín, Yikun Bai +4

The optimal transport (OT) problem has gained significant traction in modern machine learning for its ability to: (1) provide versatile metrics, such as Wasserstein distances and t…

cs.LG2024

Stereographic Spherical Sliced Wasserstein Distances

Huy Tran, Yikun Bai, Abihith Kothapalli +4

Comparing spherical probability distributions is of great interest in various fields, including geology, medical domains, computer vision, and deep representation learning. The uti…

cs.LG2023

LCOT: Linear circular optimal transport

Rocio Diaz Martin, Ivan Medri, Yikun Bai +4

The optimal transport problem for measures supported on non-Euclidean spaces has recently gained ample interest in diverse applications involving representation learning. In this p…

cs.LG2023

PT: Partial Transport Distances

Xinran Liu, Yikun Bai, Huy Tran +3

Optimal transport and its related problems, including optimal partial transport, have proven to be valuable tools in machine learning for computing meaningful distances between pro…

cs.CV2023★ 1 cited

Equivariant vs. Invariant Layers: A Comparison of Backbone and Pooling for Point Cloud Classification

Abihith Kothapalli, Ashkan Shahbazi, Xinran Liu +2

Learning from set-structured data, such as point clouds, has gained significant attention from the machine learning community. Geometric deep learning provides a blueprint for desi…

cs.LG2023★ 1 cited

Sharing Lifelong Reinforcement Learning Knowledge via Modulating Masks

Saptarshi Nath, Christos Peridis, Eseoghene Ben-Iwhiwhu +5

Lifelong learning agents aim to learn multiple tasks sequentially over a lifetime. This involves the ability to exploit previous knowledge when learning new tasks and to avoid forg…

cs.LG2022★ 3 cited

Wasserstein Task Embedding for Measuring Task Similarities

Xinran Liu, Yikun Bai, Yuzhe Lu +2

Measuring similarities between different tasks is critical in a broad spectrum of machine learning problems, including transfer, multi-task, continual, and meta-learning. Most curr…

cs.LG2022★ 3 cited

Teaching Networks to Solve Optimization Problems

Xinran Liu, Yuzhe Lu, Ali Abbasi +3

Leveraging machine learning to facilitate the optimization process is an emerging field that holds the promise to bypass the fundamental computational bottleneck caused by classic…

cs.LG2021★ 2 cited

SLOSH: Set LOcality Sensitive Hashing via Sliced-Wasserstein Embeddings

Yuzhe Lu, Xinran Liu, Andrea Soltoggio +1

Learning from set-structured data is an essential problem with many applications in machine learning and computer vision. This paper focuses on non-parametric and data-independent…