对数据库进行了初始化

.gitignore

@@ -3,3 +3,5 @@
 /out
 wandb/
 **/*.log
+models/sentence_transformers/
+models/sentence_transformers_cache/

preprocessing/README_trex_processor.md

@@ -0,0 +1,97 @@
+# TREx 数据集处理工具使用说明
+
+这个工具支持两步骤处理 TREx 数据集：
+1. **句子提取**：从 TREx 数据集提取三元组并转换为自然语言句子
+2. **LLM 处理**：使用 ollama qwen3:4b 模型进行句子修正和重要性评分
+
+## 安装依赖
+
+```bash
+pip install agno asyncio pydantic
+```
+
+确保已安装并启动 ollama，并下载 qwen3:4b 模型：
+```bash
+ollama pull qwen3:4b
+```
+
+## 使用方法
+
+### 1. 完整流程（两步骤连续执行）
+
+```bash
+python trex_to_sentences_simple.py --step all --input_dir dataset/TREx --max_files 2
+```
+
+### 2. 分步骤执行
+
+#### 步骤1：仅提取句子
+```bash
+python trex_to_sentences_simple.py --step extract --input_dir dataset/TREx --sentences_json my_sentences.json --max_files 2
+```
+
+#### 步骤2：仅LLM处理
+```bash
+python trex_to_sentences_simple.py --step llm --sentences_json my_sentences.json --output_file final_output.txt
+```
+
+## 主要参数说明
+
+- `--step`: 运行步骤
+  - `extract`: 仅提取句子
+  - `llm`: 仅LLM处理  
+  - `all`: 完整流程（默认）
+
+- `--input_dir`: TREx数据集目录（默认：`dataset/TREx`）
+- `--sentences_json`: 提取的句子JSON文件（默认：`extracted_sentences.json`）
+- `--output_file`: 最终输出文件（默认：`trex_sentences_enhanced.txt`）
+- `--max_files`: 最大处理文件数（用于测试）
+- `--no_llm`: 禁用LLM处理
+
+## 输出文件
+
+**注意：所有输出文件都会自动保存在 `./output/` 目录中**
+
+### 步骤1输出
+- `output/extracted_sentences.json`: 提取的原始句子，包含元数据
+
+### 步骤2输出  
+- `output/{output_file}.txt`: 修正后的句子文本文件
+- `output/{output_file}.json`: 完整的处理结果（包含原句、修正句、评分）
+- `output/{output_file}_sorted_by_importance.txt`: 按重要性评分排序的句子
+
+### 检查点文件
+- `output/{output_file}_checkpoint_{数量}.json`: 每2000条句子自动保存的检查点
+
+## 检查点恢复机制
+
+- 步骤2会自动检测已有的检查点文件（在 `output/` 目录中）
+- 只处理尚未处理的句子，避免重复工作
+- 如果所有句子都已处理，会直接生成最终输出文件
+
+## 示例工作流
+
+```bash
+# 1. 先提取句子（可以快速完成）
+python trex_to_sentences_simple.py --step extract --max_files 5
+
+# 2. 后续进行LLM处理（耗时较长，支持断点续传）
+python trex_to_sentences_simple.py --step llm
+
+# 如果中途中断，再次运行步骤2会自动从检查点恢复
+python trex_to_sentences_simple.py --step llm
+```
+
+## 性能特点
+
+- **并发处理**: 最大54个并发LLM请求
+- **检查点保存**: 每2000条句子自动保存，支持断点续传
+- **进度显示**: 详细的处理进度和时间预估
+- **错误处理**: LLM请求失败时使用原句子和默认评分
+
+## 注意事项
+
+1. 首次运行步骤2前，必须先完成步骤1
+2. 检查点文件会占用额外磁盘空间（每个都包含所有已处理数据）
+3. LLM处理速度取决于模型性能和网络状况
+4. 建议先用`--max_files`参数测试小批量数据 

train_pretrain_accelerate.py

@@ -3,6 +3,7 @@ import os
 os.environ["WANDB_MODE"] = "offline"  # 或者使用 "dryrun"
 import platform
 import argparse
+from tqdm import tqdm
 import time
 import math
 import warnings
@@ -18,8 +19,10 @@ from accelerate.utils import set_seed
 from accelerate.utils import DeepSpeedPlugin
 from accelerate.utils import DistributedDataParallelKwargs
 from transformers import AutoTokenizer, get_cosine_schedule_with_warmup
+import numpy as np
+from sklearn.metrics.pairwise import cosine_similarity
 
-from model.model import MiniMindLM
+from model.model import MiniMindLM, RMSNorm
 from model.LMConfig import LMConfig
 from model.dataset import PretrainDataset
 
@@ -41,10 +44,41 @@ def get_lr(it, num_iters, learning_rate):
     return learning_rate * 0.5 * (1.0 + math.cos(math.pi * it / num_iters))
 
 # 初始化模型函数
-def init_model(lm_config, pretrained_embedding_path=None):
+def init_model(lm_config, pretrained_embedding_path=None, database_init_path=None, args=None):
     tokenizer = AutoTokenizer.from_pretrained('./model/minimind_tokenizer')
     model = MiniMindLM(lm_config)
     
+    # 默认模型初始化
+    Logger("Performing default model initialization...")
+    
+    # 初始化嵌入层权重
+    nn.init.normal_(model.tok_embeddings.weight, mean=0.0, std=0.02)
+    
+    # 初始化输出层权重（如果不共享权重的话）
+    if not hasattr(model.tok_embeddings, 'weight') or model.output.weight is not model.tok_embeddings.weight:
+        nn.init.normal_(model.output.weight, mean=0.0, std=0.02)
+    
+    # 初始化所有线性层
+    for name, module in model.named_modules():
+        if isinstance(module, nn.Linear):
+            # 使用Xavier/Glorot初始化
+            nn.init.xavier_uniform_(module.weight)
+            if module.bias is not None:
+                nn.init.zeros_(module.bias)
+        elif isinstance(module, nn.Embedding):
+            # 嵌入层使用正态分布初始化
+            nn.init.normal_(module.weight, mean=0.0, std=0.02)
+        elif isinstance(module, RMSNorm):
+            # RMSNorm的权重初始化为1
+            if hasattr(module, 'weight'):
+                nn.init.ones_(module.weight)
+    
+    # 初始化位置编码相关参数
+    if hasattr(model.extract_db, 'keys'):
+        nn.init.normal_(model.extract_db.keys, mean=0.0, std=0.02)
+    
+    Logger("Default model initialization completed")
+
     # 如果提供了预训练的嵌入权重，加载它们
     if pretrained_embedding_path:
         Logger(f"Loading pretrained token embeddings from {pretrained_embedding_path}")
@@ -52,6 +86,334 @@ def init_model(lm_config, pretrained_embedding_path=None):
         model.tok_embeddings.weight.data.copy_(pretrained_embeddings)
         model.output.weight.data.copy_(pretrained_embeddings)  # 共享权重
     
+    if database_init_path:
+        import json
+        import numpy as np
+        from sentence_transformers import SentenceTransformer
+        import os
+        
+        Logger(f"Loading database initialization data from {database_init_path}")
+        
+        # 1. 加载JSON文件并转换为字典
+        with open(database_init_path, 'r', encoding='utf-8') as f:
+            database_data = json.load(f)
+        
+        # 提取sentences列表
+        sentences_data = database_data.get('sentences', [])
+        Logger(f"Loaded {len(sentences_data)} sentences from database")
+        
+        # 2. 按照importance_score进行排序（从高到低）
+        sorted_sentences = sorted(sentences_data, key=lambda x: x.get('importance_score', 0.0), reverse=True)
+        Logger(f"Sorted sentences by importance score (highest: {sorted_sentences[0].get('importance_score', 0.0)}, lowest: {sorted_sentences[-1].get('importance_score', 0.0)})")
+        
+        # 3. 下载并初始化本地嵌入模型
+        embedding_model_name = "sentence-transformers/all-mpnet-base-v2"  # 轻量级但效果好的模型
+        embedding_model_dir = "./models/sentence_transformers/models--sentence-transformers--all-mpnet-base-v2"
+        embedding_cache_dir = "./models/sentence_transformers/cache"
+        os.makedirs(embedding_cache_dir, exist_ok=True)
+        
+        Logger(f"Loading embedding model: {embedding_model_name}")
+        try:
+            embedding_model = SentenceTransformer(embedding_model_dir, cache_folder=embedding_cache_dir)
+            Logger("Embedding model loaded successfully")
+        except Exception as e:
+            Logger(f"Failed to load embedding model: {e}")
+            Logger("Falling back to random embeddings")
+            embedding_model = None
+        
+        # 4. 对每个corrected_sentence进行嵌入和token长度计算
+        Logger("Processing sentences for embeddings and token lengths...")
+        
+        # 提取所有句子
+        sentences = [sentence_data.get('corrected_sentence', '') for sentence_data in sorted_sentences]
+        
+        # 批量计算token长度
+        Logger("Computing token lengths...")
+        token_lengths = []
+        for sentence in sentences:
+            tokens = tokenizer.encode(sentence, add_special_tokens=False)
+            token_lengths.append(len(tokens))
+        
+        # 批量计算嵌入 - 大幅提升速度
+        Logger("Computing embeddings in batches...")
+        embeddings_list = []
+        batch_size = 256  # 可以根据GPU内存调整
+        
+        if embedding_model is not None:
+            try:
+                for i in range(0, len(sentences), batch_size):
+                    batch_sentences = sentences[i:i+batch_size]
+                    batch_embeddings = embedding_model.encode(
+                        batch_sentences, 
+                        convert_to_tensor=False,
+                        show_progress_bar=True if i == 0 else False,
+                        batch_size=batch_size
+                    )
+                    embeddings_list.extend(batch_embeddings)
+                    
+                    if (i + batch_size) % (batch_size * 10) == 0:
+                        Logger(f"Processed {min(i + batch_size, len(sentences))}/{len(sentences)} sentences")
+                        
+                Logger("Batch embedding computation completed")
+            except Exception as e:
+                Logger(f"Error in batch encoding: {e}")
+                Logger("Falling back to random embeddings")
+                embeddings_list = [np.random.randn(384).astype(np.float32) for _ in sentences]
+        else:
+            # 使用随机嵌入
+            embeddings_list = [np.random.randn(384).astype(np.float32) for _ in sentences]
+        
+        # 创建处理后的句子列表
+        processed_sentences = []
+        for i, (sentence_data, embedding, token_length) in enumerate(zip(sorted_sentences, embeddings_list, token_lengths)):
+            processed_sentences.append({
+                'sentence': sentence_data.get('corrected_sentence', ''),
+                'importance_score': sentence_data.get('importance_score', 0.0),
+                'token_length': token_length,
+                'embedding': embedding,  # Convert numpy array to list
+                'original_index': i
+            })
+        
+        # # Create a JSON-serializable version for saving
+        # json_serializable_sentences = []
+        # for sentence in processed_sentences:
+        #     json_sentence = sentence.copy()
+        #     # Convert embedding to list if it's a numpy array
+        #     if hasattr(json_sentence['embedding'], 'tolist'):
+        #         json_sentence['embedding'] = json_sentence['embedding'].tolist()
+        #     json_serializable_sentences.append(json_sentence)
+        
+        # json.dump(json_serializable_sentences, open('processed_sentences.json', 'w', encoding='utf-8'))
+        
+        # processed_sentences = json.load(open('processed_sentences.json', 'r', encoding='utf-8'))
+        
+        # 转换为numpy数组以便后续处理
+        embeddings_array = np.array(embeddings_list)
+        token_lengths_array = np.array(token_lengths)
+        
+        Logger(f"Embedding processing completed:")
+        Logger(f"  - Total sentences: {len(processed_sentences)}")
+        Logger(f"  - Embedding shape: {embeddings_array.shape}")
+        Logger(f"  - Average token length: {np.mean(token_lengths_array):.2f}")
+        Logger(f"  - Token length range: {np.min(token_lengths_array)} - {np.max(token_lengths_array)}")
+        
+        # 2. 聚类处理 - 优化版本
+        Logger("Starting optimized clustering process...")
+        
+        # 聚类参数
+        knowledge_num = args.knowledge_num
+        knowledge_length = args.knowledge_length
+        min_tokens = int(0.9 * knowledge_length)
+        max_tokens = knowledge_length
+        
+        # 优化1: 预计算所有嵌入的相似度矩阵（如果数据量不太大）
+        if len(processed_sentences) <= 10000:  # 只有在数据量不太大时才预计算
+            Logger("Pre-computing similarity matrix for faster clustering...")
+            embeddings_matrix = np.array([s['embedding'] for s in processed_sentences])
+            similarity_matrix = cosine_similarity(embeddings_matrix)
+            Logger(f"Similarity matrix computed: {similarity_matrix.shape}")
+        else:
+            similarity_matrix = None
+            embeddings_matrix = np.array([s['embedding'] for s in processed_sentences])
+        
+        clustered_rows = []
+        remaining_indices = list(range(len(processed_sentences)))  # 使用索引而不是对象
+        
+        Logger(f"Target: {knowledge_num} clusters, each with {min_tokens}-{max_tokens} tokens")
+        
+        # 选择聚类算法
+        if args.fast_clustering and len(processed_sentences) > 5000:
+            Logger("Using ultra-fast approximate clustering algorithm...")
+            
+            # 超快速聚类：随机采样 + 批量处理
+            import random
+            random.seed(42)  # 确保可重现性
+            
+            # 按重要性分层采样
+            high_importance = [i for i, s in enumerate(processed_sentences) if s['importance_score'] > 0.7]
+            medium_importance = [i for i, s in enumerate(processed_sentences) if 0.3 <= s['importance_score'] <= 0.7]
+            low_importance = [i for i, s in enumerate(processed_sentences) if s['importance_score'] < 0.3]
+            
+            Logger(f"Importance distribution: High={len(high_importance)}, Medium={len(medium_importance)}, Low={len(low_importance)}")
+            
+            for cluster_idx in tqdm(range(knowledge_num)):
+                # 分层选择种子：优先选择高重要性句子
+                if high_importance:
+                    seed_pool = high_importance
+                elif medium_importance:
+                    seed_pool = medium_importance
+                else:
+                    seed_pool = low_importance if low_importance else list(range(len(processed_sentences)))
+                
+                if not seed_pool:
+                    break
+                
+                # 随机选择种子（在同一重要性层级内）
+                seed_global_idx = random.choice(seed_pool)
+                seed_sentence = processed_sentences[seed_global_idx]
+                
+                # 从所有池中移除种子
+                for pool in [high_importance, medium_importance, low_importance]:
+                    if seed_global_idx in pool:
+                        pool.remove(seed_global_idx)
+                
+                current_cluster_indices = [seed_global_idx]
+                current_tokens = seed_sentence['token_length']
+                
+                if current_tokens < max_tokens:
+                    # 快速选择：只从附近的句子中随机选择
+                    all_remaining = high_importance + medium_importance + low_importance
+                    if all_remaining:
+                        # 随机采样候选句子（而不是计算所有相似度）
+                        sample_size = min(100, len(all_remaining))
+                        candidates = random.sample(all_remaining, sample_size)
+                        
+                        # 简单按token长度和重要性选择
+                        for candidate_idx in candidates:
+                            candidate = processed_sentences[candidate_idx]
+                            candidate_tokens = candidate['token_length']
+                            
+                            if current_tokens + candidate_tokens + 1 <= max_tokens:
+                                current_cluster_indices.append(candidate_idx)
+                                current_tokens += candidate_tokens + 1
+                                
+                                # 从池中移除
+                                for pool in [high_importance, medium_importance, low_importance]:
+                                    if candidate_idx in pool:
+                                        pool.remove(candidate_idx)
+                                        break
+                                
+                            if current_tokens >= min_tokens:
+                                break
+                
+                # 生成聚类文本
+                cluster_sentences = [processed_sentences[idx]['sentence'] for idx in current_cluster_indices]
+                cluster_text = '\n'.join(cluster_sentences)
+                
+                # 转换为tokens
+                cluster_tokens = tokenizer.encode(cluster_text, add_special_tokens=False)
+                if len(cluster_tokens) > knowledge_length:
+                    cluster_tokens = cluster_tokens[:knowledge_length]
+                else:
+                    pad_token_id = tokenizer.pad_token_id if tokenizer.pad_token_id is not None else 0
+                    cluster_tokens.extend([pad_token_id] * (knowledge_length - len(cluster_tokens)))
+                
+                clustered_rows.append(cluster_tokens)
+                
+                if (cluster_idx + 1) % 1000 == 0:
+                    total_remaining = len(high_importance) + len(medium_importance) + len(low_importance)
+                    Logger(f"Fast clustering: {cluster_idx + 1}/{knowledge_num} clusters, {total_remaining} sentences remaining")
+        
+        else:
+            # 原始优化算法（适用于中等规模数据集）
+            # 优化2: 批量处理和更高效的数据结构
+            for cluster_idx in tqdm(range(knowledge_num)):
+                if not remaining_indices:
+                    Logger(f"No more sentences available. Created {cluster_idx} clusters.")
+                    break
+                
+                # 2.1 选择importance_score最高的句子作为种子
+                remaining_sentences_subset = [processed_sentences[i] for i in remaining_indices]
+                seed_idx_in_subset = max(range(len(remaining_sentences_subset)), 
+                                       key=lambda i: remaining_sentences_subset[i]['importance_score'])
+                seed_global_idx = remaining_indices[seed_idx_in_subset]
+                seed_sentence = processed_sentences[seed_global_idx]
+                
+                # 从剩余索引中移除种子
+                remaining_indices.remove(seed_global_idx)
+                
+                # 当前聚类
+                current_cluster_indices = [seed_global_idx]
+                current_tokens = seed_sentence['token_length']
+                
+                if current_tokens >= max_tokens:
+                    # 如果种子句子已经超过最大token数，直接作为一个聚类
+                    cluster_text = seed_sentence['sentence']
+                else:
+                    # 2.2 优化的相似度计算和选择
+                    if remaining_indices:
+                        if similarity_matrix is not None:
+                            # 使用预计算的相似度矩阵
+                            similarities = similarity_matrix[seed_global_idx][remaining_indices]
+                        else:
+                            # 动态计算相似度（批量）
+                            seed_embedding = embeddings_matrix[seed_global_idx:seed_global_idx+1]
+                            remaining_embeddings = embeddings_matrix[remaining_indices]
+                            similarities = cosine_similarity(seed_embedding, remaining_embeddings)[0]
+                        
+                        # 创建(相似度, 原始索引, 在remaining_indices中的位置)的元组列表
+                        similarity_tuples = [(similarities[i], remaining_indices[i], i) 
+                                           for i in range(len(remaining_indices))]
+                        
+                        # 按相似度排序（降序）
+                        similarity_tuples.sort(key=lambda x: x[0], reverse=True)
+                        
+                        # 优化3: 贪心选择，但限制搜索范围以提高速度
+                        max_candidates = min(len(similarity_tuples), 500)  # 只考虑前500个最相似的句子
+                        
+                        selected_indices_in_remaining = []
+                        for sim_score, global_idx, pos_in_remaining in similarity_tuples[:max_candidates]:
+                            candidate = processed_sentences[global_idx]
+                            candidate_tokens = candidate['token_length']
+                            
+                            if current_tokens + candidate_tokens + 1 <= max_tokens:  # +1 for newline
+                                current_cluster_indices.append(global_idx)
+                                selected_indices_in_remaining.append(pos_in_remaining)
+                                current_tokens += candidate_tokens + 1
+                                
+                            if current_tokens >= min_tokens:
+                                break
+                        
+                        # 批量移除选中的句子（从后往前移除以避免索引问题）
+                        for pos in sorted(selected_indices_in_remaining, reverse=True):
+                            remaining_indices.pop(pos)
+                    
+                    # 拼接句子
+                    cluster_sentences = [processed_sentences[idx]['sentence'] for idx in current_cluster_indices]
+                    cluster_text = '\n'.join(cluster_sentences)
+                
+                # 将聚类文本转换为token
+                cluster_tokens = tokenizer.encode(cluster_text, add_special_tokens=False)
+                
+                # 截断或填充到knowledge_length
+                if len(cluster_tokens) > knowledge_length:
+                    cluster_tokens = cluster_tokens[:knowledge_length]
+                else:
+                    # 用pad_token_id填充
+                    pad_token_id = tokenizer.pad_token_id if tokenizer.pad_token_id is not None else 0
+                    cluster_tokens.extend([pad_token_id] * (knowledge_length - len(cluster_tokens)))
+                
+                clustered_rows.append(cluster_tokens)
+                
+                # 优化4: 减少日志频率
+                if (cluster_idx + 1) % 500 == 0:
+                    Logger(f"Created {cluster_idx + 1}/{knowledge_num} clusters, {len(remaining_indices)} sentences remaining")
+        
+        # 如果聚类数量不足，用随机token填充
+        while len(clustered_rows) < knowledge_num:
+            pad_token_id = tokenizer.pad_token_id if tokenizer.pad_token_id is not None else 0
+            random_tokens = [pad_token_id] * knowledge_length
+            clustered_rows.append(random_tokens)
+        
+        # 转换为tensor
+        clustered_tensor = torch.tensor(clustered_rows, dtype=torch.long)
+        
+        Logger(f"Clustering completed:")
+        Logger(f"  - Created {len(clustered_rows)} clusters")
+        Logger(f"  - Cluster shape: {clustered_tensor.shape}")
+        Logger(f"  - Expected shape: ({knowledge_num}, {knowledge_length})")
+        
+        # 3. 初始化模型的weight_down_embed
+        if hasattr(model, 'extract_db') and hasattr(model.extract_db, 'weight_down_embed'):
+            model.extract_db.weight_down_embed.data.copy_(clustered_tensor)
+            Logger("Successfully initialized model.extract_db.weight_down_embed with clustered data")
+        else:
+            Logger("Warning: Could not find model.extract_db.weight_down_embed to initialize")
+            # 存储为全局变量作为备选
+            globals()['clustered_database'] = clustered_tensor
+
+    Logger(f"Database embeddings and sentences stored in model")
+    
     Logger(f'LLM总参数量：{sum(p.numel() for p in model.parameters() if p.requires_grad) / 1e6:.3f} 百万')
     return model, tokenizer
 
@@ -290,7 +652,9 @@ def main():
     parser.add_argument("--profile_interval", type=int, default=10, help="性能分析打印间隔（步数）")
     parser.add_argument("--use_flash_attn", action="store_true", default=True, help="启用FlashAttention")
     parser.add_argument("--knowledge_num", type=int, default=64*64,help="知识库的数据数目")
-    parser.add_argument("--knowledge_length", type=int, default=8,help="知识库的句子长度")
+    parser.add_argument("--knowledge_length", type=int, default=64,help="知识库的句子长度")
+    parser.add_argument("--database_init_path", type=str, default="./dataset/database_init.json", help="数据库初始化路径")
+    parser.add_argument("--fast_clustering", action="store_true", default=True, help="使用快速近似聚类算法（适用于大数据集）")
     args = parser.parse_args()
 
     #########################################################
@@ -379,7 +743,7 @@ def main():
     #########################################################
     # 初始化模型和tokenizer
     #########################################################
-    model, tokenizer = init_model(lm_config, args.pretrained_embedding_path)
+    model, tokenizer = init_model(lm_config, args.pretrained_embedding_path, args.database_init_path, args)
     # 将accelerator传递给init_model函数中的Logger调用
     Logger(f'模型初始化完成', accelerator)