perf: search prompt

This commit is contained in:
archer
2023-05-09 16:32:02 +08:00
parent f52f514f5f
commit 4dc541e0a6
13 changed files with 82 additions and 59 deletions

View File

@@ -23,10 +23,10 @@ export const searchKb = async ({
similarity?: number;
}): Promise<{
code: 200 | 201;
searchPrompt?: {
obj: `${ChatRoleEnum}`;
searchPrompts: {
obj: ChatRoleEnum;
value: string;
};
}[];
}> => {
async function search(textArr: string[] = []) {
// 获取提示词的向量
@@ -85,17 +85,38 @@ export const searchKb = async ({
};
const filterRate = filterRateMap[systemPrompts.length] || filterRateMap[0];
// count fixed system prompt
const fixedSystemPrompt = `
${model.chat.systemPrompt}
${
model.chat.searchMode === ModelVectorSearchModeEnum.hightSimilarity ? '不回答知识库外的内容.' : ''
}
知识库内容为:`;
// 计算固定提示词的 token 数量
const fixedPrompts = [
...(model.chat.systemPrompt
? [
{
obj: ChatRoleEnum.System,
value: model.chat.systemPrompt
}
]
: []),
...(model.chat.searchMode === ModelVectorSearchModeEnum.noContext
? [
{
obj: ChatRoleEnum.System,
value: `知识库是关于"${model.name}"的内容,根据知识库内容回答问题.`
}
]
: [
{
obj: ChatRoleEnum.System,
value: `我们来玩问答游戏,规则为:
1.你忘记你已有的知识
2.你只能回答关于"${model.name}"的问题
3.你只能从知识库中选择内容进行回答
4.如果问题不在知识库中,你会回答"我不知道。"
务必遵守规则`
}
])
];
const fixedSystemTokens = modelToolMap[model.chat.chatModel].countTokens({
messages: [{ obj: 'System', value: fixedSystemPrompt }]
messages: fixedPrompts
});
const maxTokens = modelConstantsData.systemMaxToken - fixedSystemTokens;
const filterSystemPrompt = filterRate
@@ -111,31 +132,38 @@ ${
if (!filterSystemPrompt && model.chat.searchMode === ModelVectorSearchModeEnum.hightSimilarity) {
return {
code: 201,
searchPrompt: {
obj: ChatRoleEnum.AI,
value: '对不起,你的问题不在知识库中。'
}
searchPrompts: [
{
obj: ChatRoleEnum.System,
value: '对不起,你的问题不在知识库中。'
}
]
};
}
/* 高相似度+无上下文,不添加额外知识,仅用系统提示词 */
if (!filterSystemPrompt && model.chat.searchMode === ModelVectorSearchModeEnum.noContext) {
return {
code: 200,
searchPrompt: model.chat.systemPrompt
? {
obj: ChatRoleEnum.System,
value: model.chat.systemPrompt
}
: undefined
searchPrompts: model.chat.systemPrompt
? [
{
obj: ChatRoleEnum.System,
value: model.chat.systemPrompt
}
]
: []
};
}
/* 有匹配 */
return {
code: 200,
searchPrompt: {
obj: ChatRoleEnum.System,
value: `${fixedSystemPrompt}'${filterSystemPrompt}'`
}
searchPrompts: [
{
obj: ChatRoleEnum.System,
value: `知识库:'${filterSystemPrompt}'`
},
...fixedPrompts
]
};
};