Challenge: Existing federated frameworks for cross-domain sequential recommendation rely on user alignment, which increases communication costs and privacy risks.
Approach: They propose a federated cross-domain sequential recommendation framework that eliminates the need for user alignment between platforms.
Outcome: The proposed framework eliminates the need for user alignment between platforms.

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Challenge: Federated domain-specific instruction tuning (FedDIT) for large language models (LLMs) aims to enhance performance in specialized domains using distributed private and limited data.
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FedPerC: Federated Learning for Language Generation with Personal and Context Preference Embeddings (2023.findings-eacl)

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Challenge: federated learning is a decentralized learning paradigm that assumes no access to a large labeled dataset and instead leverages averaged parameter updates across all users of the system.
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RecGPT: A Foundation Model for Sequential Recommendation (2025.emnlp-main)

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Challenge: Existing approaches fail in cold-start and cross-domain scenarios where new users or items lack sufficient interaction history.
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Dual Contrastive Learning Framework for Incremental Text Classification (2023.findings-emnlp)

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Challenge: In incremental learning, large models learn and refresh knowledge continuously . many approaches have been proposed to preserve knowledge from previous tasks while learning new concepts in online NLP applications.
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Challenge: Large Language Models (LLMs) have demonstrated potential in building generative recommendation systems through fine-tuning user behavior data.
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LOHRec: Leveraging Order and Hierarchy in Generative Sequential Recommendation (2025.findings-emnlp)

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Challenge: generative recommenders focus on maximizing the prediction probability of the next item in the temporal sequence, ignoring diverse potential items.
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A Unified Framework for Modeling Heterogeneous Financial Data via Dual-Granularity Prompting (2026.acl-industry)

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Challenge: Recent industrial credit scoring models rely heavily on manually tuned statistical learning methods due to the complexity of heterogeneous financial data and the challenge of modeling evolving creditworthiness.
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FedGUI: Benchmarking Federated GUI Agents across Heterogeneous Platforms, Devices, and Operating Systems (2026.findings-acl)

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Challenge: a lack of benchmarks capture real-world, cross-platform heterogeneity in GUI training . traditional methods to train GUI agents rely on centralized data collection and manual labeling .
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Federated Continual Learning for Text Classification via Selective Inter-client Transfer (2022.findings-emnlp)

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Challenge: Continual Learning (CL) is a privacy-preserving machine learning technique that enables collaborative training of ML models by sharing model parameters across distributed clients.
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FedPAGR: Federated Prototype Alignment via Geometric Refinement for Heterogeneous Architectures (2026.acl-srw)

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