feat(filter): 添加无意义消息过滤功能以优化表达学习效果
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@@ -670,13 +670,14 @@ class ExpressionLearner:
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current_time = time.time()
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# 获取上次学习时间,过滤掉机器人自己的消息
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# 获取上次学习时间,过滤掉机器人自己的消息和无意义消息
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random_msg: list[dict[str, Any]] | None = await get_raw_msg_by_timestamp_with_chat_inclusive(
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chat_id=self.chat_id,
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timestamp_start=self.last_learning_time,
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timestamp_end=current_time,
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limit=num,
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filter_bot=True, # 过滤掉机器人自己的消息,防止学习自己的表达方式
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filter_meaningless=True, # 🔥 过滤掉表情包、通知等无意义消息
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)
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# print(random_msg)
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@@ -685,9 +686,15 @@ class ExpressionLearner:
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# 转化成str
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chat_id: str = random_msg[0]["chat_id"]
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# random_msg_str: str = build_readable_messages(random_msg, timestamp_mode="normal")
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random_msg_str: str = await build_anonymous_messages(random_msg)
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# 🔥 启用表达学习场景的过滤,过滤掉纯回复、纯@、纯图片等无意义内容
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random_msg_str: str = await build_anonymous_messages(random_msg, filter_for_learning=True)
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# print(f"random_msg_str:{random_msg_str}")
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# 🔥 检查过滤后是否还有足够的内容
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if not random_msg_str or len(random_msg_str.strip()) < 20:
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logger.debug(f"过滤后消息内容不足,跳过本次{type_str}学习")
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return None
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prompt: str = await global_prompt_manager.format_prompt(
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prompt,
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chat_str=random_msg_str,
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@@ -224,10 +224,12 @@ async def get_raw_msg_by_timestamp_with_chat_inclusive(
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limit: int = 0,
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limit_mode: str = "latest",
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filter_bot=False,
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filter_meaningless=False,
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) -> list[dict[str, Any]]:
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"""获取在特定聊天从指定时间戳到指定时间戳的消息(包含边界),按时间升序排序,返回消息列表
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limit: 限制返回的消息数量,0为不限制
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limit_mode: 当 limit > 0 时生效。 'earliest' 表示获取最早的记录, 'latest' 表示获取最新的记录。默认为 'latest'。
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filter_meaningless: 是否过滤无意义消息(表情包、通知等)。用于表达学习等场景。
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"""
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filter_query = {"chat_id": chat_id, "time": {"$gte": timestamp_start, "$lte": timestamp_end}}
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# 只有当 limit 为 0 时才应用外部 sort
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@@ -235,7 +237,12 @@ async def get_raw_msg_by_timestamp_with_chat_inclusive(
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# 直接将 limit_mode 传递给 find_messages
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return await find_messages(
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message_filter=filter_query, sort=sort_order, limit=limit, limit_mode=limit_mode, filter_bot=filter_bot
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message_filter=filter_query,
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sort=sort_order,
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limit=limit,
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limit_mode=limit_mode,
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filter_bot=filter_bot,
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filter_meaningless=filter_meaningless,
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)
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@@ -1114,10 +1121,14 @@ async def build_readable_messages(
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return "".join(result_parts)
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async def build_anonymous_messages(messages: list[dict[str, Any]]) -> str:
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async def build_anonymous_messages(messages: list[dict[str, Any]], filter_for_learning: bool = False) -> str:
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"""
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构建匿名可读消息,将不同人的名称转为唯一占位符(A、B、C...),bot自己用SELF。
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处理 回复<aaa:bbb> 和 @<aaa:bbb> 字段,将bbb映射为匿名占位符。
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Args:
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messages: 消息列表
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filter_for_learning: 是否为表达学习场景进行额外过滤(过滤掉纯回复、纯@、纯图片等无意义内容)
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"""
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assert global_config is not None
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if not messages:
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@@ -1152,6 +1163,52 @@ async def build_anonymous_messages(messages: list[dict[str, Any]]) -> str:
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current_char += 1
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return person_map[person_id]
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def is_meaningless_content(content: str, msg: dict) -> bool:
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"""
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判断消息内容是否无意义(用于表达学习过滤)
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"""
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if not content or not content.strip():
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return True
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stripped = content.strip()
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# 检查消息标记字段
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if msg.get("is_emoji", False):
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return True
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if msg.get("is_notify", False):
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return True
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if msg.get("is_public_notice", False):
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return True
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if msg.get("is_command", False):
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return True
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# 🔥 检查纯回复消息(只有[回复<xxx>]没有其他内容)
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reply_pattern = r"^\s*\[回复[^\]]*\]\s*$"
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if re.match(reply_pattern, stripped):
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return True
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# 🔥 检查纯@消息(只有@xxx没有其他内容)
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at_pattern = r"^\s*(@[^\s]+\s*)+$"
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if re.match(at_pattern, stripped):
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return True
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# 🔥 检查纯图片消息
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image_pattern = r"^\s*(\[图片\]|\[动画表情\]|\[表情\]|\[picid:[^\]]+\])\s*$"
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if re.match(image_pattern, stripped):
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return True
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# 🔥 移除回复标记、@标记、图片标记后检查是否还有实质内容
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clean_content = re.sub(r"\[回复[^\]]*\]", "", stripped)
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clean_content = re.sub(r"@[^\s]+", "", clean_content)
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clean_content = re.sub(r"\[图片\]|\[动画表情\]|\[表情\]|\[picid:[^\]]+\]", "", clean_content)
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clean_content = clean_content.strip()
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# 如果移除后内容太短(少于2个字符),认为无意义
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if len(clean_content) < 2:
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return True
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return False
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for msg in messages:
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try:
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platform: str = msg.get("chat_info_platform") # type: ignore
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@@ -1171,6 +1228,10 @@ async def build_anonymous_messages(messages: list[dict[str, Any]]) -> str:
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# For anonymous messages, we just replace with a placeholder.
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content = re.sub(r"\[picid:([^\]]+)\]", "[图片]", content)
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# 🔥 表达学习场景:过滤无意义消息
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if filter_for_learning and is_meaningless_content(content, msg):
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continue
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# if not all([platform, user_id, timestamp is not None]):
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# continue
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@@ -38,6 +38,7 @@ async def find_messages(
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limit_mode: str = "latest",
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filter_bot=False,
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filter_command=False,
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filter_meaningless=False,
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) -> list[dict[str, Any]]:
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"""
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根据提供的过滤器、排序和限制条件查找消息。
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@@ -47,6 +48,7 @@ async def find_messages(
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sort: 排序条件列表,例如 [('time', 1)] (1 for asc, -1 for desc)。仅在 limit 为 0 时生效。
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limit: 返回的最大文档数,0表示不限制。
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limit_mode: 当 limit > 0 时生效。 'earliest' 表示获取最早的记录, 'latest' 表示获取最新的记录(结果仍按时间正序排列)。默认为 'latest'。
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filter_meaningless: 是否过滤无意义消息(表情包、通知、纯回复等)。用于表达学习等场景。
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Returns:
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消息字典列表,如果出错则返回空列表。
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@@ -95,6 +97,14 @@ async def find_messages(
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if filter_command:
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query = query.where(not_(Messages.is_command))
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# 🔥 过滤无意义消息(用于表达学习等场景)
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if filter_meaningless:
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# 排除:纯表情包、通知消息、公告消息、命令消息
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query = query.where(not_(Messages.is_emoji))
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query = query.where(not_(Messages.is_notify))
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query = query.where(not_(Messages.is_public_notice))
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query = query.where(not_(Messages.is_command))
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if limit > 0:
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# 确保limit是正整数
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limit = max(1, int(limit))
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