From 7daa37dd34b680d64545795dc33a2023707e7422 Mon Sep 17 00:00:00 2001
From: Tiravy Amaury <amaury.tiravy@ecl20.ec-lyon.fr>
Date: Mon, 18 Mar 2024 18:04:57 +0100
Subject: [PATCH] add_doc2vect
---
test_doc2vect.py | 335 +++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 335 insertions(+)
create mode 100644 test_doc2vect.py
diff --git a/test_doc2vect.py b/test_doc2vect.py
new file mode 100644
index 0000000..43c8d23
--- /dev/null
+++ b/test_doc2vect.py
@@ -0,0 +1,335 @@
+import sys
+from PyQt5.QtWidgets import QApplication, QWidget, QHBoxLayout, QVBoxLayout, QTextEdit, QLineEdit, QPushButton, QSizePolicy, QListWidget, QListWidgetItem, QLabel
+from PyQt5.QtCore import Qt
+from PyQt5.QtGui import QPalette, QColor, QFont, QIcon
+from sklearn.feature_extraction.text import TfidfVectorizer
+from sklearn.metrics.pairwise import cosine_similarity
+import numpy as np
+from nltk.corpus import stopwords
+from nltk.tokenize import word_tokenize
+from unidecode import unidecode
+from gensim.models.doc2vec import Doc2Vec, TaggedDocument
+
+def read_text_file(file_path):
+ """
+ Reads the content of a text file specified by `file_path` and splits it into paragraphs based on double line breaks (`'\n\n'`).
+ Parameters:
+ - file_path (str): The path to the text file.
+ Returns:
+ - list: A list of non-empty paragraphs from the file.
+ """
+ with open(file_path, 'r', encoding='utf-8') as file:
+ content = file.read().split('\n\n')
+ content1 = [unidecode(item) for item in content if item != ""]
+ return content1
+
+def extract_keywords_french(sentence):
+ """
+ Tokenizes and filters a given sentence to extract keywords in French. Removes stop words and focuses on meaningful terms.
+ Parameters:
+ - sentence (str): The input sentence.
+ Returns:
+ - str: A string containing the extracted keywords.
+ """
+ stop_words = set(stopwords.words('french'))
+ mots_questions = ['qui', 'quoi', 'où', 'quand', 'pourquoi', 'comment', 'quel', 'quelle', 'quels', 'quelles', 'est-ce que', 'y a-t-il', 'peut-on', 'sont-ils', 'sont-elles', 'combien', 'lequel', 'laquelle', 'lesquels', 'lesquelles', 'est-ce', 'n\'est-ce pas', 'savoir', 'pouvez-vous', 'êtes-vous', 'avez-vous', 'dois-je', 'quelqu\'un', 'quelque chose']
+ stop_words=stop_words.union(mots_questions)
+ words = word_tokenize(sentence, language='french')
+ keywords = [word for word in words if word.lower() not in stop_words]
+ return ' '.join(keywords)
+
+def calculate_combined_score(tfidf_score, jaccard_score):
+ # You can adjust the weights based on the importance of each score
+ return 1 * tfidf_score + 0 * jaccard_score
+
+def create_vectorial_base(text_lines, min_chars=10):
+ """
+ Creates a TF-IDF vectorial base from a list of text lines.
+ Parameters:
+ - text_lines (list): List of text lines.
+ - min_chars (int): Minimum number of characters required for a line to be included (default is 10).
+ Returns:
+ - tuple: A tuple containing the TF-IDF vectorizer, the TF-IDF matrix (vectorial base), and the feature names.
+ """
+ filtered_lines = [line for line in text_lines if len(line) >= min_chars]
+
+ if not filtered_lines:
+ print("No lines with at least 10 characters found.")
+ return None, None, None
+
+ tagged_data = [TaggedDocument(words=line.split(), tags=[str(i)]) for i, line in enumerate(filtered_lines)]
+
+ # Train Doc2Vec model
+ model = Doc2Vec(vector_size=100, window=5, min_count=1, workers=4, epochs=20)
+ model.build_vocab(tagged_data)
+ model.train(tagged_data, total_examples=model.corpus_count, epochs=model.epochs)
+
+ # Generate vectors
+ vectorial_base = [model.infer_vector(doc.words) for doc in tagged_data]
+ tag_labels = [doc.tags[0] for doc in tagged_data]
+
+ #vectorizer = TfidfVectorizer() #a tester en option : stop_words=list(stopwords.words('french'))
+ #vectorial_base = vectorizer.fit_transform(filtered_lines).toarray()
+ #feature_names = vectorizer.get_feature_names_out()
+
+ return model, vectorial_base, tag_labels
+
+def jaccard_similarity(str1, str2):
+ tokens_str1 = set(word_tokenize(str1.lower()))
+ tokens_str2 = set(word_tokenize(str2.lower()))
+
+ stop_words = set(stopwords.words('french'))
+ tokens_str1 = tokens_str1 - stop_words
+ tokens_str2 = tokens_str2 - stop_words
+
+ intersection = len(tokens_str1.intersection(tokens_str2))
+ union = len(tokens_str1) + len(tokens_str2) - intersection
+
+ similarity = intersection / union if union != 0 else 0.0
+ return similarity
+
+def get_best_answers(question, text_lines, model, vectorial_base):
+ """
+ Retrieves the top 3 most similar text lines to a given question based on cosine similarity.
+ Parameters:
+ - question (str): The user's question.
+ - text_lines (list): List of text lines.
+ - vectorizer: The TF-IDF vectorizer.
+ - vectorial_base: The TF-IDF matrix (vectorial base).
+ Returns:
+ - list: A list of the top 3 most similar text lines as answers.
+ """
+ # Infer vector for the question using the trained Doc2Vec model
+ question_vector = model.infer_vector(question.split())
+
+ # Convert the list of document vectors into numpy array
+ vectorial_base = np.array(vectorial_base)
+
+ # Calculate cosine similarity between the question and each document vector
+ similarities = cosine_similarity(question_vector.reshape(1, -1), vectorial_base).flatten()
+
+ jaccard_similarities = [jaccard_similarity(question, text) for text in text_lines]
+
+ combined_scores = [calculate_combined_score(similarities, jaccard_score)
+ for similarities, jaccard_score in zip(similarities, jaccard_similarities)]
+
+ # Get the indices of the top 3 most similar text lines
+ top_indices = np.argsort(combined_scores)[-3:][::-1]
+ # Retrieve the corresponding text lines
+ best_answers = [text_lines[i]+"\n"+"score doc2vect : "+str(similarities[i])+" score jacard : "+str(jaccard_similarities[i])+"\n" for i in top_indices]
+
+ return best_answers
+
+class WrappingLabel(QLabel):
+ """
+ Subclass of QLabel with word wrapping enabled. Used for displaying text in the GUI.
+ """
+ def __init__(self, text='', parent=None):
+ super(WrappingLabel, self).__init__(text, parent)
+ self.setWordWrap(True)
+
+
+class StyledListWidgetItem(QListWidgetItem):
+ """
+ Subclass of QListWidgetItem with custom styling for the chat history list.
+ """
+ def __init__(self, text='', parent=None):
+ super(StyledListWidgetItem, self).__init__(parent)
+ self.setText(text)
+
+ def initStyle(self):
+ palette = QPalette()
+ palette.setColor(QPalette.Highlight, QColor("#4b5261")) # Couleur de fond pour l'élément sélectionné dans la liste d'historique
+ palette.setColor(QPalette.HighlightedText, QColor("#ff0000")) # Couleur du texte pour l'élément sélectionné dans la liste d'historique
+ self.setData(Qt.UserRole, palette)
+
+class StyledListWidget(QListWidget):
+ """
+ Subclass of QListWidget with custom styling for the chat history list.
+ """
+ def __init__(self, parent=None):
+ super(StyledListWidget, self).__init__(parent)
+ self.setAlternatingRowColors(False)
+ self.setStyleSheet("""
+ QListWidget {
+ background-color: #282c34; /* Couleur de fond pour la liste d'historique */
+ color: #abb2bf; /* Couleur du texte dans la liste d'historique */
+ border-radius: 10px; /* Coins arrondis */
+ }
+ """)
+
+ def addStyledItem(self, text):
+ """
+ Adds a styled item to the list widget.
+ Parameters:
+ - text (str): The text to be added to the list.
+ """
+ item = StyledListWidgetItem(text)
+ item.initStyle()
+ self.addItem(item)
+
+
+class ChatbotInterface(QWidget):
+ """
+ Main class representing the chatbot interface. Initializes the UI and handles user interactions.
+ """
+ def __init__(self):
+ super().__init__()
+ file_path = 'reglementdescolarite-ingegeneraliste2324-1.docx.txt'
+ self.text_lines = read_text_file(file_path)
+
+ if not self.text_lines:
+ print("The file is empty or doesn't exist.")
+ return
+ self.model, self.vectorial_base, _ = create_vectorial_base(self.text_lines)
+ self.init_ui()
+ self.command_history = [] # Pour stocker l'historique des commandes
+ self.dico={}
+ self.dico2={}
+
+ def init_ui(self):
+ """
+ Initializes the user interface.
+ """
+ # Créer des widgets
+ self.conversation_text = QTextEdit(self)
+ self.conversation_text.setFont(QFont("consolas",9))
+ self.conversation_text.setReadOnly(True)
+
+ self.user_input_entry = QLineEdit(self)
+ self.user_input_entry.setPlaceholderText("Saisissez votre message...")
+ self.user_input_entry.setMinimumHeight(40)
+
+ self.send_button = QPushButton("Envoyer", self)
+ self.send_button.setMinimumSize(self.user_input_entry.width(), 30) # Ajustez selon vos besoins
+ self.send_button.setMaximumSize(200, 60)
+ self.send_button.clicked.connect(self.send_message)
+
+ # Historique à droite
+ self.history_list_widget = StyledListWidget(self)
+ self.history_list_widget.itemClicked.connect(self.history_item_clicked)
+ self.history_list_widget.setFixedWidth(200) # Ajuster la largeur selon vos besoins
+
+ # Configurer la mise en page
+ layout = QVBoxLayout(self)
+ h_layout = QHBoxLayout()
+
+ # Widgets à gauche
+ left_layout = QVBoxLayout()
+ left_layout.addWidget(self.conversation_text)
+ left_layout.addWidget(self.user_input_entry)
+
+ # Ajouter le bouton "Envoyer" avec une taille réduite
+ self.send_button.setMaximumWidth(self.send_button.width() // 3)
+ left_layout.addWidget(self.send_button, alignment=Qt.AlignRight)
+ h_layout.addLayout(left_layout)
+
+ # Historique à droite
+ h_layout.addWidget(self.history_list_widget)
+ layout.addLayout(h_layout)
+
+ # Configurer la politique de taille pour permettre à la zone de conversation de s'étendre verticalement
+ size_policy = QSizePolicy(QSizePolicy.Preferred, QSizePolicy.Expanding)
+ self.conversation_text.setSizePolicy(size_policy)
+
+ # Définir la fenêtre principale
+ icon = QIcon("chatbot.png")
+ self.setWindowIcon(icon)
+ self.setWindowTitle('chatbot')
+ self.setGeometry(100, 100, 800, 600)
+
+ # Appliquer les styles
+ self.setStyleSheet("""
+ QWidget {
+ background-color: #282c34; /* Couleur principale de fond pour l'application */
+ color: #abb2bf; /* Couleur du texte principal */
+ }
+
+ QTextEdit, QLineEdit {
+ background-color: #2c313a; /* Couleur de fond pour la zone de texte et d'entrée utilisateur */
+ color: #abb2bf; /* Couleur du texte dans la zone de texte et d'entrée utilisateur */
+ border-radius: 10px; /* Coins arrondis */
+ }
+
+ QPushButton {
+ background-color: #61afef; /* Couleur de fond pour le bouton Envoyer */
+ color: #282c34; /* Couleur du texte sur le bouton Envoyer */
+ border-radius: 10px; /* Coins arrondis */
+ }
+
+
+ """)
+
+ self.user_input_entry.returnPressed.connect(self.send_message)
+ self.history_list_widget.itemClicked.connect(self.history_item_clicked)
+
+ def send_message(self):
+ """
+ Handles the user's input, processes it, and displays the chatbot's response.
+ """
+ user_command = self.user_input_entry.text()
+ user_command=unidecode(user_command)
+ if len(user_command)>0:
+ self.conversation_text.clear()
+ self.conversation_text.append(f"demande élève: {user_command}")
+ self.conversation_text.append("Réponse du chatbot pour la demande: ")
+
+ best_answers = get_best_answers(user_command, self.text_lines, self.model, self.vectorial_base)
+ chatbot_response=""
+ for i, answer in enumerate(best_answers, start=1):
+ chatbot_response+=(f"{i}. {answer.strip()}\n\n")
+ self.conversation_text.append(chatbot_response)
+
+ # Ajouter la commande à l'historique
+ user_command1=extract_keywords_french(user_command)
+ self.command_history.append(user_command1)
+ self.dico2[user_command1]= user_command
+ self.dico[user_command1]= chatbot_response
+
+ # Mettre à jour la liste d'historique
+ self.update_history_list()
+
+ self.user_input_entry.clear()
+ else:
+ pass
+
+ def update_history_list(self):
+ """
+ Updates the chat history list in the UI.
+ """
+ self.history_list_widget.clear()
+ for command in self.command_history:
+ self.history_list_widget.addStyledItem(command)
+
+
+ def history_item_clicked(self, item):
+ """
+ Displays the chat history when an item is clicked.
+ Parameters:
+ - item: The clicked item.
+ """
+ self.conversation_text.clear()
+ # Réafficher le contenu dans la conversation_text lorsque l'élément de l'historique est cliqué
+ selected_index = self.history_list_widget.row(item)
+ if selected_index < len(self.command_history):
+ selected_command = self.command_history[selected_index]
+ self.conversation_text.append(f"demande élève: {self.dico2[selected_command]}")
+ # Traiter la commande et obtenir la réponse du chatbot (vous devrez ajuster cela en fonction de votre application)
+ chatbot_response = f"Réponse du chatbot pour la demande: \n{self.dico[selected_command]}"
+ self.conversation_text.append(chatbot_response)
+
+if __name__ == '__main__':
+ app = QApplication(sys.argv)
+ chatbot_app = ChatbotInterface()
+ screen = app.primaryScreen()
+
+ # Ajuster la taille de la fenêtre
+ new_width = screen.availableGeometry().width()*3 // 5
+ chatbot_app.resize(new_width, int(screen.availableGeometry().height()-48))
+
+ # Centrer la fenêtre
+ center_point = screen.availableGeometry().center().x()-chatbot_app.rect().center().x()
+ chatbot_app.move(center_point,0)
+
+ chatbot_app.show()
+ sys.exit(app.exec_())
\ No newline at end of file
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