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import spaces |
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import gradio as gr |
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from transformers import AutoTokenizer, AutoModelForCausalLM, pipeline |
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import torch |
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from deepface import DeepFace |
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import time |
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from kokoro import KPipeline |
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from IPython.display import display, Audio |
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import soundfile as sf |
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from sentence_transformers import SentenceTransformer |
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import numpy as np |
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import chromadb |
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from langchain_community.vectorstores import Chroma |
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from collections import defaultdict |
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from sklearn.cluster import DBSCAN |
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model_name = "IniNLP247/Kenko-mental-health-llama-3-model" |
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print("Loading Kenko Mental Health Model...") |
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tokenizer = AutoTokenizer.from_pretrained(model_name) |
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if tokenizer.pad_token is None: |
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tokenizer.pad_token = tokenizer.eos_token |
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model = AutoModelForCausalLM.from_pretrained( |
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model_name, |
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torch_dtype=torch.float16, |
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device_map="auto" |
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) |
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pipe = pipeline( |
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"text-generation", |
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model=model, |
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tokenizer=tokenizer, |
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return_full_text=False, |
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max_new_tokens=512, |
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temperature=0.7, |
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top_p=0.9, |
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repetition_penalty=1.1, |
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pad_token_id=tokenizer.pad_token_id |
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) |
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print("Model loaded successfully!") |
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print("Loading Kokoro TTS Model...") |
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tts_pipeline = KPipeline(lang_code='b') |
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print("Kokoro TTS Model loaded successfully!") |
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print("Initializing Memory Components...") |
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chroma_client = chromadb.Client() |
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embedding_model = SentenceTransformer("all-MiniLM-L6-v2") |
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def embed_function(texts): |
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if isinstance(texts, str): |
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texts = [texts] |
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return embedding_model.encode(texts).tolist() |
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global_vector_store = Chroma( |
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client=chroma_client, |
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embedding_function=embed_function |
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) |
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print("Memory components initialized!") |
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current_emotion_state = { |
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"dominant": "neutral", |
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"confidence": 0.0, |
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"all_emotions": {}, |
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"last_update": None |
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} |
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class AdvancedMemorySystem: |
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""" |
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Multi-tier memory system inspired by human memory: |
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- Working Memory: Current conversation (high priority) |
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- Short-term Memory: Recent session with decay |
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- Long-term Memory: Semantic clusters of important themes |
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- Emotional Memory: Affective associations and patterns |
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""" |
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def __init__(self, embedding_model, vector_store): |
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self.embedding_model = embedding_model |
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self.vector_store = vector_store |
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self.working_memory = [] |
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self.short_term_memory = [] |
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self.semantic_clusters = defaultdict(list) |
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self.emotional_memory = { |
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"emotion_transitions": [], |
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"trigger_patterns": defaultdict(list), |
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"coping_effectiveness": {} |
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} |
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self.conversation_themes = [] |
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self.user_model = { |
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"communication_style": None, |
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"recurring_concerns": [], |
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"progress_indicators": [], |
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"relational_patterns": [] |
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} |
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def calculate_importance(self, text, emotion, user_engagement): |
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"""Calculate memory importance using multiple factors""" |
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importance = 0.5 |
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high_intensity_emotions = ["fear", "angry", "sad", "surprise"] |
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if emotion in high_intensity_emotions: |
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importance += 0.3 |
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if len(text.split()) > 30: |
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importance += 0.2 |
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therapeutic_keywords = [ |
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"trauma", "suicide", "self-harm", "abuse", "panic", |
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"breakthrough", "progress", "better", "worse", "relationship" |
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] |
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if any(kw in text.lower() for kw in therapeutic_keywords): |
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importance += 0.3 |
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return min(importance, 1.0) |
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def add_to_working_memory(self, user_msg, bot_msg, emotion, timestamp): |
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"""Add to immediate working memory (sliding window)""" |
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self.working_memory.append({ |
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"user": user_msg, |
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"bot": bot_msg, |
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"emotion": emotion, |
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"timestamp": timestamp |
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}) |
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if len(self.working_memory) > 5: |
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oldest = self.working_memory.pop(0) |
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self._consolidate_to_short_term(oldest) |
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def _consolidate_to_short_term(self, memory_item): |
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"""Move from working to short-term memory with importance scoring""" |
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text = f"User: {memory_item['user']}\nKenko: {memory_item['bot']}" |
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embedding = self.embedding_model.encode(text) |
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importance = self.calculate_importance( |
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memory_item['user'], |
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memory_item['emotion'], |
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len(memory_item['user'].split()) |
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) |
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self.short_term_memory.append({ |
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"text": text, |
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"embedding": embedding, |
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"importance": importance, |
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"timestamp": memory_item['timestamp'], |
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"emotion": memory_item['emotion'] |
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}) |
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try: |
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self.vector_store.add_texts( |
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texts=[text], |
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metadatas=[{"importance": importance, "timestamp": memory_item['timestamp']}] |
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) |
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except Exception as e: |
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print(f"Vector store error: {e}") |
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def apply_temporal_decay(self, current_time): |
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"""Apply decay to short-term memories over time""" |
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decay_rate = 0.01 |
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for memory in self.short_term_memory: |
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time_elapsed = (current_time - memory['timestamp']) / 60 |
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decay_factor = np.exp(-decay_rate * time_elapsed) |
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memory['importance'] *= decay_factor |
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if memory['importance'] < 0.15: |
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self._consolidate_to_long_term(memory) |
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def _consolidate_to_long_term(self, memory): |
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"""Cluster similar memories into semantic long-term memory""" |
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if not self.semantic_clusters: |
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self.semantic_clusters[0] = [memory] |
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self.short_term_memory.remove(memory) |
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return |
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best_cluster = 0 |
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best_similarity = -1 |
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for cluster_id, cluster_memories in self.semantic_clusters.items(): |
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cluster_embeddings = [m['embedding'] for m in cluster_memories] |
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centroid = np.mean(cluster_embeddings, axis=0) |
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similarity = np.dot(memory['embedding'], centroid) / ( |
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np.linalg.norm(memory['embedding']) * np.linalg.norm(centroid) |
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) |
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if similarity > best_similarity: |
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best_similarity = similarity |
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best_cluster = cluster_id |
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if best_similarity > 0.7: |
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self.semantic_clusters[best_cluster].append(memory) |
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else: |
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new_cluster_id = max(self.semantic_clusters.keys()) + 1 |
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self.semantic_clusters[new_cluster_id] = [memory] |
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if memory in self.short_term_memory: |
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self.short_term_memory.remove(memory) |
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def track_emotional_transition(self, prev_emotion, current_emotion, context): |
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"""Track emotional state transitions for pattern recognition""" |
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self.emotional_memory["emotion_transitions"].append({ |
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"from": prev_emotion, |
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"to": current_emotion, |
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"context": context, |
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"timestamp": time.time() |
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}) |
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if prev_emotion != current_emotion: |
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self.emotional_memory["trigger_patterns"][current_emotion].append(context) |
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def analyze_conversation_themes(self): |
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"""Use topic modeling on conversation to identify recurring themes""" |
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if len(self.short_term_memory) < 3: |
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return [] |
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all_text = " ".join([m['text'] for m in self.short_term_memory]) |
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words = all_text.lower().split() |
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word_freq = defaultdict(int) |
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stopwords = {"the", "a", "is", "in", "and", "to", "of", "i", "my", "me", "you", "that", "it"} |
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for word in words: |
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if word not in stopwords and len(word) > 4: |
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word_freq[word] += 1 |
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themes = sorted(word_freq.items(), key=lambda x: x[1], reverse=True)[:5] |
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self.conversation_themes = [theme[0] for theme in themes] |
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return self.conversation_themes |
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def retrieve_contextual_memory(self, query, current_emotion): |
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"""Advanced retrieval using multiple memory tiers""" |
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context = { |
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"working": [], |
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"short_term": [], |
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"long_term": [], |
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"emotional": [], |
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"themes": [] |
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} |
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context["working"] = self.working_memory[-3:] |
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if self.short_term_memory: |
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query_embedding = self.embedding_model.encode(query) |
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scored_memories = [] |
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for memory in self.short_term_memory: |
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similarity = np.dot(query_embedding, memory['embedding']) / ( |
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np.linalg.norm(query_embedding) * np.linalg.norm(memory['embedding']) |
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) |
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final_score = similarity * memory['importance'] |
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if memory['emotion'] == current_emotion: |
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final_score *= 1.2 |
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scored_memories.append((final_score, memory)) |
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scored_memories.sort(reverse=True, key=lambda x: x[0]) |
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context["short_term"] = [m[1] for m in scored_memories[:3]] |
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if self.semantic_clusters: |
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query_embedding = self.embedding_model.encode(query) |
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best_cluster_id = None |
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best_cluster_score = -1 |
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for cluster_id, cluster_memories in self.semantic_clusters.items(): |
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cluster_embeddings = [m['embedding'] for m in cluster_memories] |
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centroid = np.mean(cluster_embeddings, axis=0) |
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similarity = np.dot(query_embedding, centroid) / ( |
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np.linalg.norm(query_embedding) * np.linalg.norm(centroid) |
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) |
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if similarity > best_cluster_score: |
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best_cluster_score = similarity |
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best_cluster_id = cluster_id |
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if best_cluster_id is not None and best_cluster_score > 0.6: |
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cluster = self.semantic_clusters[best_cluster_id] |
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context["long_term"] = cluster[:2] |
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if current_emotion in self.emotional_memory["trigger_patterns"]: |
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triggers = self.emotional_memory["trigger_patterns"][current_emotion] |
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context["emotional"] = triggers[-2:] |
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context["themes"] = self.analyze_conversation_themes() |
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return context |
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def update_user_model(self, message, emotion): |
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"""Build a psychological profile of the user over time""" |
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if len(message.split()) > 50: |
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style = "detailed" |
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elif len(message.split()) < 10: |
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style = "concise" |
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else: |
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style = "moderate" |
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self.user_model["communication_style"] = style |
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concern_keywords = { |
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"anxiety": ["anxious", "worried", "panic", "nervous", "anxiety"], |
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"depression": ["sad", "depressed", "hopeless", "empty", "depression"], |
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"relationships": ["partner", "relationship", "friend", "family"], |
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"work_stress": ["work", "job", "career", "boss", "stress"] |
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} |
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for concern, keywords in concern_keywords.items(): |
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if any(kw in message.lower() for kw in keywords): |
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if concern not in self.user_model["recurring_concerns"]: |
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self.user_model["recurring_concerns"].append(concern) |
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def generate_memory_context_string(self, contextual_memory): |
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"""Format retrieved memories into prompt context""" |
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context_parts = [] |
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if contextual_memory["working"]: |
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recent = "\n".join([ |
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f"User: {m['user']}\nKenko: {m['bot']}" |
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for m in contextual_memory["working"] |
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]) |
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context_parts.append(f"### Recent Conversation:\n{recent}") |
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if contextual_memory["short_term"]: |
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important = "\n".join([m['text'] for m in contextual_memory["short_term"]]) |
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context_parts.append(f"### Important Recent Context:\n{important}") |
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if contextual_memory["long_term"]: |
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longterm = "\n".join([m['text'] for m in contextual_memory["long_term"]]) |
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context_parts.append(f"### Related Past Discussions:\n{longterm}") |
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if contextual_memory["emotional"]: |
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emotional = ", ".join(contextual_memory["emotional"][:3]) |
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context_parts.append(f"### Emotional Pattern: Previously triggered by: {emotional}") |
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if contextual_memory["themes"]: |
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themes = ", ".join(contextual_memory["themes"]) |
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context_parts.append(f"### Session Themes: {themes}") |
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if self.user_model["recurring_concerns"]: |
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concerns = ", ".join(self.user_model["recurring_concerns"]) |
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context_parts.append(f"### Recurring Concerns: {concerns}") |
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return "\n\n".join(context_parts) |
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def reset(self): |
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"""Reset all memory tiers""" |
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self.working_memory = [] |
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self.short_term_memory = [] |
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self.semantic_clusters = defaultdict(list) |
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self.emotional_memory = { |
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"emotion_transitions": [], |
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"trigger_patterns": defaultdict(list), |
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"coping_effectiveness": {} |
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} |
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self.conversation_themes = [] |
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self.user_model = { |
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"communication_style": None, |
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"recurring_concerns": [], |
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"progress_indicators": [], |
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"relational_patterns": [] |
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} |
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print("Initializing Advanced Memory System...") |
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advanced_memory = AdvancedMemorySystem(embedding_model, global_vector_store) |
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print("Advanced Memory System initialized!") |
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previous_emotion = "neutral" |
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def update_emotion_status(): |
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if current_emotion_state["last_update"] is None: |
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return "*Waiting for emotion data...*" |
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elapsed = time.time() - current_emotion_state["last_update"] |
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if elapsed > 60: |
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return "*Emotion data outdated - please ensure webcam is active*" |
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dominant = current_emotion_state["dominant"] |
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confidence = current_emotion_state["confidence"] |
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return f"**Current Emotion:** {dominant.capitalize()} ({confidence:.1f}% confidence)\n*Last updated: {int(elapsed)}s ago*" |
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def analyze_emotion(image): |
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global current_emotion_state |
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try: |
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if image is None: |
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return {} |
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result = DeepFace.analyze( |
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img_path=image, |
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actions=['emotion'], |
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enforce_detection=False, |
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detector_backend='opencv' |
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) |
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if isinstance(result, list): |
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emotions = result[0]['emotion'] |
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dominant = result[0]['dominant_emotion'] |
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else: |
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emotions = result['emotion'] |
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dominant = result['dominant_emotion'] |
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current_emotion_state = { |
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"dominant": dominant, |
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"confidence": emotions[dominant], |
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"all_emotions": emotions, |
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"last_update": time.time() |
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} |
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output = {} |
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for emotion, score in sorted(emotions.items(), key=lambda x: x[1], reverse=True): |
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output[emotion.capitalize()] = score |
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return output |
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except Exception as e: |
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print(f"Emotion analysis error: {str(e)}") |
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return {} |
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def get_emotion_context(): |
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"""Get current emotion as context string for the model""" |
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if current_emotion_state["last_update"] is None: |
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return "" |
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if time.time() - current_emotion_state["last_update"] > 60: |
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return "" |
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dominant = current_emotion_state["dominant"] |
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confidence = current_emotion_state["confidence"] |
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emotion_context = f"\n[User's Current Detected Emotion: {dominant} ({confidence:.1f}% confidence)]" |
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return emotion_context |
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def chat_with_kenko(message, history): |
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"""Chat function for Gradio interface with emotion awareness""" |
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conversation = "" |
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for user_msg, bot_msg in history: |
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conversation += f"User: {user_msg}\nKenko: {bot_msg}\n\n" |
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emotion_context = get_emotion_context() |
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prompt = f"""### Instruction: |
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You are Kenko, a compassionate mental health therapist. Provide empathetic, helpful, and professional responses to support the user's mental wellbeing. |
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{emotion_context} |
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{conversation}User: {message} |
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### Response: |
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""" |
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try: |
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response = pipe(prompt)[0]['generated_text'] |
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return response.strip() |
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except Exception as e: |
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return f"I'm sorry, I'm having trouble processing your message right now. Error: {str(e)}" |
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def generate_tts(text): |
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try: |
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text = text[:600] |
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generator = tts_pipeline( |
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text, voice='af_heart', |
|
|
speed=1, split_pattern=r'\n+' |
|
|
) |
|
|
|
|
|
audio_chunks = [] |
|
|
for gs, ps, audio in generator: |
|
|
audio_chunks.append(audio) |
|
|
|
|
|
if not audio_chunks: |
|
|
print("TTS generation failed") |
|
|
return None |
|
|
|
|
|
audio_array = np.concatenate(audio_chunks, axis=0) |
|
|
audio_array = audio_array.astype(np.float32) |
|
|
sample_rate = 24000 |
|
|
|
|
|
return (sample_rate, audio_array) |
|
|
|
|
|
except Exception as e: |
|
|
print(f"TTS generation error: {str(e)}") |
|
|
return None |
|
|
|
|
|
css = """ |
|
|
.gradio-container { |
|
|
font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; |
|
|
} |
|
|
.emotion-box { |
|
|
border: 2px solid #4CAF50; |
|
|
border-radius: 10px; |
|
|
padding: 10px; |
|
|
margin: 10px 0; |
|
|
} |
|
|
""" |
|
|
|
|
|
with gr.Blocks( |
|
|
title="Kenko - Mental Health Assistant", |
|
|
theme=gr.themes.Soft(), |
|
|
css=css |
|
|
) as demo: |
|
|
|
|
|
gr.Markdown(""" |
|
|
# 💚 Kenko - Your Emotion-Aware Mental Health Assistant |
|
|
Welcome! I'm Kenko, an AI mental health therapist enhanced with real-time emotion detection. |
|
|
Allow webcam access to enable emotion-aware responses that adapt to how you're feeling. |
|
|
*Please remember: I'm an AI assistant and cannot replace professional mental health care. In crisis situations, please contact emergency services or a mental health professional.* |
|
|
""") |
|
|
|
|
|
with gr.Row(): |
|
|
with gr.Column(scale=2): |
|
|
chatbot = gr.Chatbot( |
|
|
height=500, |
|
|
show_label=False, |
|
|
container=True, |
|
|
bubble_full_width=False, |
|
|
avatar_images=("👤", "🧠") |
|
|
) |
|
|
|
|
|
audio_output = gr.Audio( |
|
|
label="Kenko's Voice Response", |
|
|
autoplay=True, |
|
|
show_label=True |
|
|
) |
|
|
|
|
|
with gr.Row(): |
|
|
msg = gr.Textbox( |
|
|
placeholder="Share what's on your mind... (press Enter to send)", |
|
|
container=False, |
|
|
scale=7, |
|
|
lines=2, |
|
|
max_lines=4 |
|
|
) |
|
|
send_btn = gr.Button("Send 💬", scale=1, variant="primary") |
|
|
|
|
|
with gr.Row(): |
|
|
clear_btn = gr.Button("🗑️ Clear Chat", scale=1, variant="secondary") |
|
|
examples_btn = gr.Button("💡 Example Topics", scale=1, variant="secondary") |
|
|
|
|
|
with gr.Column(scale=1): |
|
|
gr.Markdown("### 📸 Emotion Detection") |
|
|
gr.Markdown("*Your emotional state helps me provide more personalized support*") |
|
|
|
|
|
webcam_input = gr.Image( |
|
|
sources=["webcam"], |
|
|
type="numpy", |
|
|
streaming=True, |
|
|
label="Live Webcam Feed" |
|
|
) |
|
|
|
|
|
emotion_output = gr.Label( |
|
|
num_top_classes=7, |
|
|
label="Detected Emotions" |
|
|
) |
|
|
|
|
|
emotion_status = gr.Markdown("*Waiting for emotion data...*") |
|
|
|
|
|
|
|
|
with gr.Row(visible=False) as examples_row: |
|
|
gr.Examples( |
|
|
examples=[ |
|
|
"I've been feeling really anxious lately and I don't know why.", |
|
|
"I'm having trouble sleeping and my mind won't stop racing.", |
|
|
"I feel overwhelmed with work and personal responsibilities.", |
|
|
"I'm struggling with low self-esteem and negative thoughts.", |
|
|
"I'm having difficulty in my relationships.", |
|
|
"I feel lonely and isolated.", |
|
|
"I'm dealing with grief and loss.", |
|
|
"I want to build better coping strategies." |
|
|
], |
|
|
inputs=msg, |
|
|
label="Try these conversation starters:" |
|
|
) |
|
|
|
|
|
with gr.Accordion("ℹ️ About Kenko", open=False): |
|
|
gr.Markdown(""" |
|
|
**What I can help with:** |
|
|
- Active listening and emotional support (now emotion-aware!) |
|
|
- Coping strategies and stress management techniques |
|
|
- Guidance on anxiety, depression, and mood concerns |
|
|
- Relationship and communication advice |
|
|
- Mindfulness and self-care suggestions |
|
|
- Building healthy habits and routines |
|
|
**Emotion Detection Feature:** |
|
|
- Real-time facial emotion analysis |
|
|
- Adapts responses based on your current emotional state |
|
|
- Updates automatically every 30 seconds |
|
|
- Completely optional - works without webcam too |
|
|
**Important Notes:** |
|
|
- I'm an AI trained to provide mental health support |
|
|
- For immediate crisis support, contact emergency services (911) or crisis hotlines |
|
|
- Consider professional therapy for ongoing mental health needs |
|
|
- I don't diagnose conditions or prescribe medications |
|
|
**Privacy:** Your conversations and emotion data are not stored or shared. |
|
|
""") |
|
|
@spaces.GPU |
|
|
def respond(message, chat_history): |
|
|
if not message.strip(): |
|
|
return "", chat_history, None |
|
|
|
|
|
import time |
|
|
|
|
|
start = time.time() |
|
|
bot_response = chat_with_kenko(message, chat_history) |
|
|
text_time = time.time() - start |
|
|
print(f"Text Generation Time: {text_time:.2f} seconds: {len(bot_response)} characters") |
|
|
chat_history.append((message, bot_response)) |
|
|
|
|
|
tts_start = time.time() |
|
|
print(f"Generating TTS for: '{bot_response[:100]}...'") |
|
|
audio = generate_tts(bot_response) |
|
|
tts_time = time.time() - tts_start |
|
|
print(f"TTS Generation Time: {tts_time:.2f} seconds") |
|
|
print(f"TOTAL TIME: {time.time() - start:.2f}s") |
|
|
|
|
|
return "", chat_history, audio |
|
|
|
|
|
def toggle_examples(): |
|
|
return gr.Row(visible=True) |
|
|
|
|
|
|
|
|
|
|
|
submit = msg.submit(fn=respond, inputs=[msg, chatbot], outputs=[msg, chatbot, audio_output]) |
|
|
send = send_btn.click(fn=respond, inputs=[msg, chatbot], outputs=[msg, chatbot, audio_output]) |
|
|
clear_btn.click(lambda: [], None, outputs=[chatbot, audio_output]) |
|
|
examples_btn.click(toggle_examples, outputs=examples_row) |
|
|
|
|
|
|
|
|
webcam_input.stream( |
|
|
analyze_emotion, |
|
|
inputs=webcam_input, |
|
|
outputs=emotion_output, |
|
|
stream_every=1, |
|
|
time_limit=60 |
|
|
) |
|
|
|
|
|
timer = gr.Timer(value=5) |
|
|
|
|
|
|
|
|
timer.tick( |
|
|
fn=lambda: (update_emotion_status()), |
|
|
outputs=[emotion_status] |
|
|
) |
|
|
|
|
|
|
|
|
|
|
|
if __name__ == "__main__": |
|
|
print("Starting Kenko Mental Health Assistant with Emotion Detection...") |
|
|
demo.launch( |
|
|
share=True, |
|
|
show_error=True |
|
|
) |
