MeeTooSaives. Integrating machine learning (ML) and natural language processing (NLP) into the MeeToo app to create a state of the art suicide prevention solution for children and young people (CYP) aged 11+.

将机器学习（ML）和自然语言处理（NLP）整合到MeeToo应用程序中，为11岁以上的儿童和青少年（CYP）创建最先进的自杀预防解决方案。MeeToo应用程序提供免费，安全，匿名，预调节，对等支持56k CYP。MeeToo已被独立评估并证明可改善CYP患者的心理健康（AFC, 2021）。2020年，MeeToo支持了794名表达自杀想法的CYP。当自杀意念变成自杀意图时，CYP不会寻求支持，因为他们觉得自己已经“失去了帮助”（Biddle\_2020）。因为40%死于自杀的CYP与心理健康系统没有联系（Rodway\_2020），自杀预防工具只关注危机中的CYP，排除了大多数继续自杀的人（Kessler\_2019）。成功的自杀预防解决方案必须在痛苦变得严重之前提供更多的支持。我们与布里斯托尔大学医学院和苏塞克斯大学信息系合作开发的创新产品meeoosaives将ML和NLP集成到MeeToo应用程序中，以查询被动和高风险数据，以识别风险模式，分析语义内容并预测风险。当检测到风险模式时，CYP将自动升级为临床监督和训练有素的反应者同伴支持的自杀支持流。NLP集成了与主题匹配资源的智能链接。至关重要的是，CYP不必要求额外的支持。当痛苦减轻时，支持会减少，CYP会重新加入他们的同伴。人工智能继续监测风险。因为大多数自杀发生在午夜到凌晨四点之间。（Perlis\_2016）在澳大利亚提供镜像服务，方便全球24/7交付。MeeTooSaives很重要，因为自杀是英国青少年死亡的主要原因（ONS\_2018），每一次自杀都有20次非致命性自杀企图（WHO\_2018）。到17岁时，7.4%的英国青少年曾试图自杀（Millenium\_Cohort\_Study\_2021）。2017年，英国72%的CYP自杀者为男性；黑人/少数族裔占14%；5%是同性恋者（NCISH\_2017）。一名青少年自杀的终生成本为975万英镑（Platt\_2006），而在自杀预防方面每投资1英镑，预计10年的投资回报率为39.11英镑（McDaid\_2017）。青少年心理健康的后期干预估计每年花费公共服务170亿英镑（Oppenhim, 2015）。英国仅治疗扑热息痛中毒就花费了4970万英镑（贝特曼2014）。这种高风险，技术上具有挑战性的创新可以为200万英国CYP提供24/7,365天的心理健康问题，获得危机和持续支持，每年低于4000万英镑

Integrating machine learning (ML) and natural language processing (NLP) into the MeeToo app to create a state of the art suicide prevention solution for children and young people (CYP) aged 11+.The MeeToo app delivers free, safe, anonymous, pre-moderated, peer support to 56k CYP. MeeToo has been independently evaluated and demonstrated to improve mental health in CYP (AFC, 2021).In 2020, MeeToo supported 794 CYP expressing suicidal ideation. When suicidal ideation becomes suicidal intent, CYP don't seek support because they feel they have 'gone past help' (Biddle\_2020). Because 40% of CYP who die by suicide have no contact with the mental-health system (Rodway\_2020), suicide prevention tools which only focus on CYP in crisis exclude the majority who go on to take their lives (Kessler\_2019). Successful suicide prevention solutions must deliver increased support before distress becomes acute.Our innovation, MeeTooSaives, developed in collaboration with Bristol University Medical School and University of Sussex Department of Informatics, integrates ML and NLP into the MeeToo app to interrogate passive as well as high risk, data to identify risk patterns, analyse semantic content and predict risk.When risk patterns are detected, CYP are automatically stepped-up into a suicide support stream for clinical supervision and trained responder peer support. NLP integrates smart links to topic matched resources. Crucially, CYP doesn't have to ask for additional support. When distress deescalates, support steps down and CYP re-join their peers. AI continues to monitor risk.Because most suicides occur between midnight and 4 a.m. (Perlis\_2016) mirror provision in Australia facilitates 24/7 global delivery.MeeTooSaives is important because suicide is the leading cause of death in UK CYP (ONS\_2018) and for every suicide, there are 20 non-fatal suicide attempts (WHO\_2018). By the age of 17, 7.4% of UK CYP have attempted suicide (Millenium\_Cohort\_Study\_2021). In 2017, 72% of UK CYP suicides were male; 14% were black/minority ethnic; 5% were LGBT (NCISH\_2017).The lifetime cost of one youth suicide is £9.75 M (Platt\_2006) yet the estimated 10 year ROI for every £1 invested in suicide prevention is £39.11(McDaid\_2017). Late intervention in youth mental health costs public services an estimated £17bn a year (Oppenhim, 2015). The UK spends £49.7 M PA treating paracetamol poisoning alone (Bateman\_2014). This high risk, technically challenging innovation could provide the 2M UK CYP with mental health issues with 24/7, 365-day, access to crisis and continuous support for <£40M P.A.