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Delete app.py

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  1. app.py +0 -194
app.py DELETED
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- import streamlit as st
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- import base64
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-
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- # Set page config
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- st.set_page_config(page_title="Neural Network Playground", layout="centered")
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-
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- # Load and encode background image
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- def get_base64(file_path):
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- with open(file_path, "rb") as f:
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- data = f.read()
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- return base64.b64encode(data).decode()
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-
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- img_base64 = get_base64("tf1.jpg")
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-
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- # Inject CSS with base64 background
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- st.markdown(
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- f"""
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- <style>
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- .stApp {{
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- background-image: url("data:image/jpg;base64,{img_base64}");
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- background-size: cover;
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- background-position: center;
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- background-repeat: no-repeat;
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- background-attachment: fixed;
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- }}
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- </style>
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- """,
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- unsafe_allow_html=True
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- )
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-
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- # Title
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- st.markdown(
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- """
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- <h1 style='text-align: center; color: #FF6336; font-weight: bold;'>
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- Neural Network Playground
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- </h1>
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- """,
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- unsafe_allow_html=True
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- )
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-
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- # Subtitle
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- st.markdown(
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- """
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- <h3 style='text-align: center; color: #2E8B57; font-weight: normal;'>
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- Dive into the world of neural networks—explore and train with ease!
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- </h3>
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- """,
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- unsafe_allow_html=True
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- )
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-
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- # About section
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- st.subheader("🔎 :blue[About the App:]")
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-
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- st.markdown("""
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- Neural Network Playground is an interactive tool designed for hands-on exploration of machine learning models.
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- Whether you're just starting or already exploring advanced concepts, this platform lets you:
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- - 🧑‍💻 Build and visualize neural networks with ease and fun.
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- - 🔬 Train models on interactive datasets with real-time updates.
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- - 🛠️ Experiment with various architectures and see instant results.
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- - 🧠 Adjust hyperparameters and observe their effects on model learning—live!
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- No coding required. Just pure, interactive learning.
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- """)
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-
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-
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-
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- import streamlit as st
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- import base64
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- import matplotlib.pyplot as plt
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- import seaborn as sns
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- from sklearn.datasets import make_circles, make_moons, make_classification
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- from sklearn.model_selection import train_test_split
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- from sklearn.preprocessing import StandardScaler
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- from keras.models import Sequential
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- from keras.layers import Dense
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- from keras.optimizers import SGD
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- from mlxtend.plotting import plot_decision_regions
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- import numpy as np
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- import tensorflow as tf
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- from tensorflow import keras
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-
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-
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- # Page title with new theme
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- st.markdown(
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- "<h1 style='text-align: center; color: #FF6347;'>🤖 Neural Network Playground</h1>",
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- unsafe_allow_html=True
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- )
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- # Load and encode background image
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- def get_base64(file_path):
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- with open(file_path, "rb") as f:
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- data = f.read()
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- return base64.b64encode(data).decode()
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-
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- img_base64 = get_base64("tf1.jpg")
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-
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- # Inject CSS with base64 background
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- st.markdown(
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- f"""
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- <style>
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- .stApp {{
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- background-image: url("data:image/jpg;base64,{img_base64}");
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- background-size: cover;
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- background-position: center;
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- background-repeat: no-repeat;
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- background-attachment: fixed;
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- }}
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- </style>
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- """,
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- unsafe_allow_html=True
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- )
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- # Sidebar configuration with new theme
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- st.sidebar.title("⚙️ Model Configuration")
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-
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- # User input options in sidebar with theme
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- num_points = st.sidebar.slider("Number of Data Points", 100, 10000, 1000, step=100)
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- noise = st.sidebar.slider("Noise", 0.01, 0.9, 0.1)
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- batch_size = st.sidebar.slider("Batch Size", 1, 512, 32)
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- epochs = st.sidebar.slider("Epochs", 1, 100, 10)
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- learning_rate = st.sidebar.slider("Learning Rate", 0.0001, 1.0, 0.01, step=0.0001, format="%.4f")
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- hidden_layers = st.sidebar.slider("Hidden Layers", 1, 5, 2)
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- neurons_per_layer = st.sidebar.slider("Neurons per Layer", 1, 512, 32)
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- activation_name = st.sidebar.selectbox("Activation Function", ["relu", "tanh", "sigmoid", "linear"])
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-
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- # Dataset selection with new theme
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- st.subheader("📊 Dataset Selection")
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- dataset_option = st.selectbox("Choose the dataset", ("circle", "moons", "classification"))
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-
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- # Dataset generation based on user selection
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- if dataset_option == "circle":
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- x, y = make_circles(n_samples=num_points, noise=noise, factor=0.5, random_state=42)
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- elif dataset_option == "moons":
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- x, y = make_moons(n_samples=num_points, noise=noise, random_state=42)
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- else:
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- x, y = make_classification(n_samples=num_points, n_features=2, n_informative=2,
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- n_redundant=0, n_clusters_per_class=1, random_state=42)
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-
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- # Submit button
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- if st.button("🚀 Submit"):
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- st.subheader("📍 Input Data")
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- fig, ax = plt.subplots()
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- sns.scatterplot(x=x[:, 0], y=x[:, 1], hue=y, palette='Set2', ax=ax)
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- st.pyplot(fig)
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-
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- # Train button with a fresh theme for model training
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- if st.button("🧠 Train the model"):
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- with st.spinner("⏳ Training the model..."):
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- # Data split and scale
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- x_train, x_test, y_train, y_test = train_test_split(x, y, test_size=0.2, random_state=1, stratify=y)
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- scaler = StandardScaler()
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- x_train = scaler.fit_transform(x_train)
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- x_test = scaler.transform(x_test)
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-
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- # Model architecture
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- model = Sequential()
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- model.add(Dense(neurons_per_layer, input_shape=(2,), activation=activation_name))
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- for _ in range(hidden_layers - 1):
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- model.add(Dense(neurons_per_layer, activation=activation_name))
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- model.add(Dense(1, activation='sigmoid'))
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-
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- # Compile and train
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- sgd = SGD(learning_rate=learning_rate)
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- model.compile(optimizer=sgd, loss='binary_crossentropy', metrics=['accuracy'])
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- history = model.fit(x_train, y_train, batch_size=batch_size, epochs=epochs, validation_split=0.2, verbose=0)
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-
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- st.success("✅ Training Complete!")
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-
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- # Show training plots with a fresh look
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- st.subheader("📈 Training Progress")
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- fig, ax = plt.subplots()
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- ax.plot(history.history['loss'], label='Training Loss')
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- ax.plot(history.history['val_loss'], label='Validation Loss')
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- ax.set_title("Training vs Validation Loss")
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- ax.set_xlabel("Epoch")
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- ax.legend()
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- st.pyplot(fig)
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-
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- # Display final loss metrics
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- final_loss = history.history['loss'][-1]
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- final_val_loss = history.history['val_loss'][-1]
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- st.write(f"🧮 Final Training Loss: **{final_loss:.4f}**")
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- st.write(f"✅ Final Validation Loss: **{final_val_loss:.4f}**")
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-
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- # Decision boundary visualization with a fresh UI
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- class KerasClassifierWrapper:
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- def __init__(self, model):
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- self.model = model
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-
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- def predict(self, X):
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- return (self.model.predict(X) > 0.5).astype("int32")
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-
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- with st.spinner("🔮 Generating decision boundary..."):
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- st.subheader("📌 Decision Boundary (Training Data)")
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- fig, ax = plt.subplots()
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- plot_decision_regions(X=x_train, y=y_train, clf=KerasClassifierWrapper(model), ax=ax)
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- st.pyplot(fig)