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Jones Ray

ScholarPulse 日报 2026-09-17

2026-09-17 学术简报:2 篇。EvolveTrade 将 LLM 交易代理的系统提示视为可演化的文本策略,通过决策轨迹与组合反馈持续修订,在多个市场制度下通常优于固定策略基线。

今日速览

序号标题来源日期主题推荐等级
1EvolveTrade: Experience-Driven Policy Refinement for Self-Evolving LLM Trading AgentsarXiv2026-09-17AI-Agent高
2CapMem: A Benchmark for Caption-Based Episodic Memory in Egocentric VideoarXiv2026-09-17RAG高

重点论文与技术动态

1. EvolveTrade: Experience-Driven Policy Refinement for Self-Evolving LLM Trading Agents

一句话结论

EvolveTrade 将 LLM 交易代理的系统提示视为可演化的文本策略,通过决策轨迹与组合反馈持续修订,在多个市场制度下通常优于固定策略基线。

核心内容

方法与数据

价值判断

摘要 arXiv:2609.17632v1 Announce Type: new Abstract: Large language model (LLM) trading agents can combine market data, news, and executable analysis, but their behavior is often controlled by static hand-written tool-use policies that are fixed before deployment. This limits their ability to adapt how they gather evidence, invoke tools, verify signals, and manage risk under changing market regimes. We introduce EvolveTrade, a self-evolving framework that treats the system prompt of a tool-using trading agent as a text-parameterized policy. After each update interval, a Policy Agent revises this policy using accumulated decision traces and realized portfolio feedback, while keeping the backbone LLM fixed. The updated policy is then used for the next batch of trading decisions, enabling the agent to refine its information-acquisition and portfolio-construction procedure over time. Experiments across multiple market regimes and two LLM backbones show that EvolveTrade often improves Sharpe Ratio and Cumulative Return over fixed-policy LLM baselines, achieving the improved SR and CR in most evaluated settings. Behavioral analyses further show that self-evolved policies increase code-mediated analysis and activate regime-relevant computations; case-level policy-to-return attributions trace how policy-induced allocation changes contribute to realized return differences. These results suggest that adapting the reusable procedure governing tool use is a key direction for building more robust LLM trading agents.

2. CapMem: A Benchmark for Caption-Based Episodic Memory in Egocentric Video

一句话结论

文本字幕(caption)可作为第一人称长视频中可复用的情景记忆,在多数模型上优于直接视频问答。

核心内容

方法与数据

价值判断

摘要 arXiv:2609.17688v1 Announce Type: new Abstract: Wearable assistants require episodic memory over egocentric video, yet current vision-language models face bounded frame budgets, growing visual-token costs, and long-context retrieval failures. Under these practical constraints, we study whether textual captions can serve as reusable episodic memory. We define the Episodic Memory Video Caption QA task and introduce CapMem, a human-annotated benchmark with 75 videos totaling 33.7 hours, and 1,000 multiple-choice questions across 16 scenarios. On long videos (>20 min), full-coverage CaptionQA with 30s and 60s caption windows outperforms direct VideoQA for 10/12 and 8/12 models, respectively. On the same video subset, a matched-frame control across six Qwen models retains mean accuracy gains of 3.22 and 2.55 points, respectively. Our caption-guided retrieve-and-verify harness further improves accuracy by up to 5.3 points. These results support the effectiveness of caption memory for episodic reasoning over long egocentric video.