S4-18 · 基础 · 概念实验 S4-18 · Foundation · Concept Lab

事实锚定 · 不是少说错话,而是说话有出处 Grounding · Not Fewer Mistakes, but Traceable Claims

claim → source binding → source removed → status downgraded

事实锚定(Grounding)让输出中的可核查主张绑定到指定数据、工具结果或来源。它不是“少幻觉”的口号,而是一组可追踪、可断开的证据关系。 Grounding binds checkable output claims to specified data, tool results, or sources. It is not a slogan about fewer hallucinations; it is a traceable evidence relationship.

01 · 先从日常问题开始 01 · Start with an everyday question

一份报告写了三件事实,却只在末尾丢了一个链接——你知道这个链接到底支持哪一句吗? A report makes three factual claims and drops one link at the end. Can you tell which sentence it supports?

02 逐条恢复或移走来源,看主张状态切换 Restore or Remove Sources and Watch Claim Status Change

拖动可用来源数 drag source count
已锚定主张 Grounded claims
of 3 claims
证据覆盖率 Evidence coverage
linked / total
未证实主张 Unverified claims
must not stay green

03 锚定关系由四个零件组成 A Grounding Link Has Four Parts

把刚才的变化拆开 Map the change to parts
01 · CLAIM

主张 Claim

从回答中拆出日期、数量、归因等可核查陈述。 Extract checkable statements such as dates, quantities, and attributions.

02 · SOURCE

指定来源 Specified source

来源可以是文档片段、数据库记录或工具返回值,但必须明确身份。 A source may be a document span, database record, or tool result, but its identity must be explicit.

03 · LINK

逐项绑定 Claim-level link

记录哪条来源支持哪条主张,而不是把引用堆在段末。 Record which source supports which claim instead of piling citations at paragraph end.

04 · STATUS

动态状态 Dynamic status

来源撤销、过期或冲突后,主张状态随证据变化。 When a source is removed, expires, or conflicts, claim status follows the evidence.

04 最小机制:覆盖率只数真实连接 Minimal Mechanism: Coverage Counts Real Links Only

coverage = grounded / claims
coverage = grounded claims / all claims
固定三条主张,来源与主张一一配对。删除来源不会删除句子,却必须删除那条绿色证据连接。 Three claims pair one-to-one with three sources. Removing a source does not delete the sentence, but it must delete the green evidence link.
拆出主张 Extract claims 先确定核查单位 define the unit to verify
连接来源 Bind sources 保存具体证据落点 store exact evidence location
同步状态 Sync status 来源变化就降级 downgrade when sources change

05 边界实验:撤走一切来源 Boundary Test: Remove Every Source

主动制造失败 Create a failure

句子还在,但所有绿色状态都应消失 Sentences remain, but every green status must disappear

清空三个来源。若页面仍把主张显示为“已证实”,系统就把过去的证据状态当成了永久事实。 Remove all three sources. If claims remain grounded, the system has mistaken past evidence status for permanent truth.

尚未执行。先在上方改变主变量。 Not run yet. Change the main variable above first.
回答末尾有链接,就算全文有锚定。 A link at the end grounds the whole answer. → ✓ 把每条可核查主张绑定到具体来源。 Bind each checkable claim to a specific source.
来源删了,绿色状态可以保留。 A claim can stay green after its source is removed. → ✓ 证据变化必须同步改变主张状态。 Claim status must follow evidence changes.
锚定等于模型永远不犯错。 Grounding means the model can never be wrong. → ✓ 锚定提供可追踪证据,不替代来源质量判断。 Grounding provides traceability, not source quality.
06 · 一句话带走 06 · One line to keep

事实锚定把每条可核查主张绑定到明确来源;来源被移走时,主张必须立即降为“未证实”,而不是继续显示绿色。 Grounding binds every checkable claim to an explicit source. Remove the source and the claim must immediately become unverified, not stay green.