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Zikai Xiao

7 accepted papers

2026

WebWorld: A Large-Scale World Model for Web Agent Training

ICML 2026poster

Web agents require massive trajectories to generalize, yet real-world training is constrained by network latency, rate limits, and safety risks. We introduce \textbf{WebWorld} series, the first open-web simulator trained at scale. While existing simulators are restricted to closed environments with …

Cited by 0SourceScholar
2025

LongWeave: A Long-Form Generation Benchmark Bridging Real-World Relevance and Verifiability

EMNLP 2025

Generating long, informative, and factual outputs remains a major challenge for Large Language Models (LLMs). Existing benchmarks for long-form generation typically assess real-world queries with hard-to-verify metrics or use synthetic setups that ease evaluation but overlook real-world intricacies.

2025

Mitigating Posterior Salience Attenuation in Long-Context LLMs with Positional Contrastive Decoding

ACL 2025short

While Large Language Models (LLMs) support long contexts, they struggle with performance degradation within the context window. Current solutions incur prohibitive training costs, leaving statistical behaviors and cost-effective approaches underexplored. From the decoding perspective, we identify th…

Cited by 0SourcePDFScholar
2024

FedLoGe: Joint Local and Generic Federated Learning under Long-tailed Data

ICLR 2024poster

Federated Long-Tailed Learning (Fed-LT), a paradigm wherein data collected from decentralized local clients manifests a globally prevalent long-tailed distribution, has garnered considerable attention in recent times. In the context of Fed-LT, existing works have predominantly centered on addressing…

2024

Theoretically Achieving Continuous Representation of Oriented Bounding Boxes

CVPR 2024poster

Considerable efforts have been devoted to Oriented Object Detection (OOD). However one lasting issue regarding the discontinuity in Oriented Bounding Box (OBB) representation remains unresolved which is an inherent bottleneck for extant OOD methods. This paper endeavors to completely solve this issu…

Cited by 14SourcePDFScholar
2023

Fed-GraB: Federated Long-tailed Learning with Self-Adjusting Gradient Balancer

NeurIPS 2023poster

Data privacy and long-tailed distribution are the norms rather than the exception in many real-world tasks. This paper investigates a federated long-tailed learning (Fed-LT) task in which each client holds a locally heterogeneous dataset; if the datasets can be globally aggregated, they jointly exhi…