Large Language Models (LLMs) have shown remarkable potential in recommendation systems but suffer from prohibitive inference latency. Existing distillation approaches typically target Small Language Models (SLMs) or Conventional Recommendation Models (CRMs), face a critical trade-off between computational cost and semantic reasoning capacity. To bridge this accuracy-efficiency gap, we introduce Reasoning-to-Encoder Distillation (R2END), a framework that establishes a text encoder as the optimal student architecture for scalable recommendation. Unlike methods that mimic token generation, R2END compresses the teacher’s reasoning into a dense vector space via a semantic alignment objective, effectively capturing user-item dynamics. Extensive experiments on four datasets demonstrate that R2END not only outperforms state-of-the-art baselines but also achieves drastically reduced latency, offering a sweet spot for recommendation.

With recent advances in diffusion models, text-to-image (T2I) generation has achieved remarkable progress, producing high-quality images from simple text prompts. However, as these models have become more expressive, concerns regarding the generation of unsafe or inappropriate content have grown. To address this issue, we propose the Safety-Adjustable Framework for Ethics (Safe), a novel training-free, plug-and-play prompt optimization framework. Leveraging the reasoning capabilities of large language models (LLMs), Safe optimizes prompts to meet concept-specific safety requirements while preserving their original semantics. The framework operates in three stages: (1) generating an image from the original prompt using a pretrained T2I model, (2) analyzing the generated image with a vision-language model (VLM), and (3) conducting DAG-based reasoning over both the prompt and the image description to produce refined prompt. In addition, Safe uses a search module to incorporate external knowledge such as cultural norms and legal constraints, enabling adaptation to diverse user contexts. Extensive experiments demonstrate that Safe effectively complements existing safety methods and achieves strong performance in user-centric safety alignment.

Documents that users query mix tables with prose, but the QA systems built for them do not: retrieve-and-read pipelines flatten tables, while text-to-SQL pipelines ignore passages. Corporate filings, scientific reports, and Wikipedia articles all sit on this fault line, and a single user question routinely crosses it. We present ATR (AgenticTableRAG), an agentic framework for hybrid table-text question answering. ATR decomposes each question into ordered sub-queries and dispatches each to one of four execution primitives: text reading, cell retrieval, SQL execution, or a hybrid of cell grounding and SQL. When the retrieved evidence does not support the predicted answer, the router is re-invoked with the failed-route history and dispatches a different primitive. Value grounding composed with constrained SQL execution rules out column and value hallucinations by construction. The routing policy is distilled into a lightweight student model that transfers across benchmarks without additional inference-time LLM calls. A single ATR configuration leads on token F1 across three benchmarks without per-dataset tuning.