activity
20242026
most citedDecision Mamba: Reinforcement Learning via Hybrid Selective Sequence Modeling

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

collaborators

13 papers

cs.IR2026

UniSGR-V2: Stepwise Target-Side Feature Anticipation and Crossing for Generative Recommendation

Jun Yang, Jiasi Chen, Jiawei Sun +4

Semantic-ID-based generative recommendation unifies retrieval and ranking through autoregressive decoding but differs structurally from discriminative models, which can directly ac…

cs.IR2026

LazFormer: Scaling Transformers for Industrial Recommendation via Transferable Generative Pre-training

Xiaodong Li, Alin Fan, Mingyang Li +7

Transformers have shown promising performance in LLMs due to their outstanding scalability, several studies have investigated the scalability of Transformers for industrial recomme…

cs.IR2026

MIMA: Multi-Interest Recommendation via Multi-Positive Exclusive Assignment

Xingyuan Mao, Alin Fan, Shichao Nie +4

Multi-interest recommendation represents each user with multiple interest vectors for fine-grained candidate matching, yet it often suffers from interest collapse, where the learne…

cs.CL2026

QueryAgent-R1: Bridging Query Generation and Product Retrieval for E-Commerce Query Recommendation

Dike Sun, Zheng Zou, Jingtong Zang +3

Query recommendation in e-commerce search aims to proactively suggest queries that match users' potential interests. However, existing methods mainly optimize query-level relevance…

cs.CV2026

FlowHijack: A Dynamics-Aware Backdoor Attack on Flow-Matching Vision-Language-Action Models

Xinyuan An, Tao Luo, Gengyun Peng +3

Vision-Language-Action (VLA) models are emerging as a cornerstone for robotics, with flow-matching policies like showing great promise in generating smooth, continuous action…

cs.CL2026

Quality Over Clicks: Iterative Reinforcement Learning for Early-Stage E-Commerce Query Suggestion

Qi Sun, Kejun Xiao, Huaipeng Zhao +2

Existing dialogue systems rely on query suggestion to enhance user engagement. Recent approaches mainly optimize generative models using click-through rate (CTR) models to align wi…

cs.CL2026

Shopping Companion: Benchmarking and Training LLM Agents for Long-Horizon Preference-Grounded E-Commerce Tasks

Zijian Yu, Kejun Xiao, Huaipeng Zhao +2

In e-commerce, LLM agents show promise for shopping tasks such as recommendations, budget management, and bundle deals, where accurately capturing user preferences from long-horizo…

cs.AI2026

ProductResearch: Training E-Commerce Deep Research Agents via Multi-Agent Synthetic Trajectory Distillation

Jiangyuan Wang, Kejun Xiao, Huaipeng Zhao +2

Large Language Model (LLM)-based agents show promise for e-commerce conversational shopping, yet existing implementations lack the interaction depth and contextual breadth required…

cs.CL2025★ 1 cited

ShoppingBench: A Real-World Intent-Grounded Shopping Benchmark for LLM-based Agents

Jiangyuan Wang, Kejun Xiao, Qi Sun +4

Existing benchmarks in e-commerce primarily focus on basic user intents, such as finding or purchasing products. However, real-world users often pursue more complex goals, such as…

math.NA2025

Convergence Guarantees for Gradient-Based Training of Neural PDE Solvers: From Linear to Nonlinear PDEs

Wei Zhao, Tao Luo

We present a unified convergence theory for gradient-based training of neural network methods for partial differential equations (PDEs), covering both physics-informed neural netwo…

cs.LG2024

Analyzing and Bridging the Gap between Maximizing Total Reward and Discounted Reward in Deep Reinforcement Learning

Shuyu Yin, Fei Wen, Peilin Liu +1

The optimal objective is a fundamental aspect of reinforcement learning (RL), as it determines how policies are evaluated and optimized. While total return maximization is the idea…

cs.LG2024

Probing Implicit Bias in Semi-gradient Q-learning: Visualizing the Effective Loss Landscapes via the Fokker--Planck Equation

Shuyu Yin, Fei Wen, Peilin Liu +1

Semi-gradient Q-learning is applied in many fields, but due to the absence of an explicit loss function, studying its dynamics and implicit bias in the parameter space is challengi…

cs.LG2024★ 2 cited

Decision Mamba: Reinforcement Learning via Hybrid Selective Sequence Modeling

Sili Huang, Jifeng Hu, Zhejian Yang +5

Recent works have shown the remarkable superiority of transformer models in reinforcement learning (RL), where the decision-making problem is formulated as sequential generation. T…