Plan your 2025 experiences with LNER. Tickets available up to June 2025. Amazing prices for train tickets to incredible destinations. All fares indicated are one way. Book train tickets anywhere in England, Scotland and Wales through LNER and pay no bookings fees.

4 天之前 · Up-to-the-minute information about current engineering works and any other service disruptions on Great Northern. Engineering work is taking place overnight from 23:50 between Alexandra Palace and Stevenage via Hertford North ending Friday morning, closing all lines. Buses replace trains between Alexandra Palace and Stevenage via Hertford North.

2024年3月1日 · 如上图展示的结果，我们开发的 GNER-LLaMA 和 GNER-T5 模型在 分数上分别超过了目前最优模型 8 分和 11 分。 我们已经将所有的模型和数据集开源。 首先我们将实体周围的上下文引入训练，样例如下图所示，对于每个实体，我们引入最靠近实体的 个单词作为训练的负样本，其他的词用省略号代替， 称为上下文长度。 通过不断增大实体的上下文长度，我们发现模型的效果有所提升，并不断接近饱和。 同时我们发现，增强实体边界的 prompt 有利于模型对实体 …

2024年12月23日 · Gartner将代理人工智能列为2025年的顶级技术趋势。 该技术通过快速分析用于药物发现的海量数据集，其应用跨多个行业，包括制造、客户服务、物流 ...

2024年3月1日 · 论文：Rethinking Negative Instances for Generative Named Entity Recognition 地址：https://arxiv.org/abs/2402.16602 Github：https://github.com/yyDing1/GNER. 一句话概括：将负样本融入训练，模型表现远超现有 SoTA. 研究背景: 生成式大语言模型，如 ChatGPT，在实体识别方面与监督学习模型相比仍存在差距。 为了弥补这一能力的不足，目前的研究主要集中在使用开源大语言模型（例如 LLaMA）对 NER 数据集进行微调。 然而，现有的工作往往关注于 …

2024年10月21日 · The Gartner Top Strategic Technology Trends for 2025 are the star map you can use to keep your organization forging safely into the future. Each trending technology …

We introduce GNER, a G enerative N amed E ntity R ecognition framework, which demonstrates enhanced zero-shot capabilities across unseen entity domains. Experiments on two representative generative models, i.e., LLaMA and Flan-T5, show that the integration of negative instances into the training process yields substantial performance enhancements.

Journey planners are currently showing the timetable we plan to operate up until 17 May 2025. Downloadable timetables are available below. Please note that these timetables do not reflect: For details of the availability of Advance fares, visit advance ticket availability.

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