nlp赛事_事件抽取任务

事件抽取任务_ee

事件抽取 (Event Extraction, EE)是指从自然语言文本中抽取事件并识别事件类型和事件元素的技术。事件抽取是智能风控、智能投研、舆情监控等人工智能应用的重要技术基础，受到学术界和工业界的广泛关注。事件抽取任务涉及事件句抽取、触发词识别、事件类型判别、论元抽取等复杂技术，具有一定的挑战。
赛题说明

事件抽取任务的目标是通过给定目标事件类型和角色类型集合及句子，识别句子中所有目标事件类型的事件，并根据论元角色集合抽取事件所对应的论元。其中目标事件类型（event_type）和论元角色（role）限定了抽取的范围，例如：（event_type：胜负，role：时间，胜者，败者，赛事名称）、（event_type：夺冠，role：夺冠事件，夺冠赛事，冠军）。最终将抽取的所有事件论元按如下形式进行输出: {“id”: “id1”, “event_list”: [{“event_type”:“T1”, “arguments”: [{“role”:“R1”, “argument”:“A1”},…]}, {“event_type”:“T2”, “arguments”: [{“role”:“R2”, “argument”:“A2”},…]}]}，比赛将对参赛者最终输出的论元列表进行评估。
Given sentences and predefined event types with corresponding argument roles set, this task aims to identify events of targeted event types from sentences, and extract corresponding event arguments playing targeted argument roles. The predefined event types and argument roles restrict the scope of extraction. Examples of event types and roles are as follows, (event_type：胜负，role：时间，胜者，败者，赛事名称）、（event_type：夺冠，role：夺冠事件，夺冠赛事，冠军). Participants are required to submit extracted event arguments in the form: {“id”: “id1”, “event_list”: [{“event_type”:“T1”, “arguments”: [{“role”:“R1”, “argument”:“A1”},…]}, {“event_type”:“T2”, “arguments”: [{“role”:“R2”, “argument”:“A2”},…]}]}. The final scores and rankings will be calculated according to the submitted extraction results.

输入/输出：

输入：包含事件信息的一个或多个连续完整句子。
Input: one or multiple consecutive and complete sentences containing event information.

输出：属于预先定义的事件类型、类型角色的论元结果。
Output: event arguments with corresponding argument roles and event types.

数据样本

数据样本 Sample Data
平台提供的数据为JSON格式，单行JSON格式如下：
The data is provided in JSON format as follows:

{
    "text":"泰安今早发生2.9级地震！靠近这个国家森林公园", // input sentence
    "id":"15eb3f6208c67a0081164fd18ea5674c",   // input sentence id 
    "event_list":[     // all events from text
        {
            "arguments":[   // all event arguments with the event type
                {
                    "argument_start_index":2, // event argument start position
                    "role":"时间",  // event argument role
                    "argument":"今早", // event argument mentioned in text
                    "alias":[  // other event argument mentions
                    ]
                }
            ],
            "trigger":"地震",  // trigger word
            "trigger_start_index":10,  // trigger word start postion
            "class":"灾害/意外",  // event class
            "event_type":"灾害/意外-地震" // event type 
        }
    ]
}