Update src/streamlit_app.py

src/streamlit_app.py

@@ -1,40 +1,74 @@
-import altair as alt
-import numpy as np
-import pandas as pd
 import streamlit as st
+import pandas as pd
+import re
+import tensorflow as tf
+from nltk.corpus import stopwords
+from nltk.tokenize import word_tokenize
+from tensorflow.keras.preprocessing.text import Tokenizer
+from tensorflow.keras.preprocessing.sequence import pad_sequences
+from tensorflow.keras.models import load_model
+import nltk
+
+# Download the stopwords resource
+nltk.download('stopwords')
+nltk.download('punkt')
+
+# Load the trained model
+model = load_model('model.keras')
+
+# Load stopwords
+stpwds_id = list(set(stopwords.words('english')))
+
+# Text preprocessing function
+def text_preprocessing(text):
+    # Case folding
+    text = text.lower()
+
+    # Mention removal
+    text = re.sub("@[A-Za-z0-9_]+", " ", text)
+
+    # Hashtags removal
+    text = re.sub("#[A-Za-z0-9_]+", " ", text)
+
+    # Newline removal (\n)
+    text = re.sub(r"\\n", " ",text)
+
+    # Whitespace removal
+    text = text.strip()
+
+    # URL removal
+    text = re.sub(r"http\S+", " ", text)
+    text = re.sub(r"www.\S+", " ", text)
+
+    # Non-letter removal (such as emoticons, symbols, etc.)
+    text = re.sub("[^A-Za-z\s']", " ", text)
+
+    # Tokenization
+    tokens = word_tokenize(text)
+
+    # Stopwords removal
+    tokens = [word for word in tokens if word not in stpwds_id]
+
+    # Combining Tokens
+    text = ' '.join(tokens)
+
+    return text
+
+# Define the Streamlit interface
+st.title('Sentiment Analysis App')
+
+# Get user input
+user_input = st.text_area("Enter the text for sentiment analysis:")
+
+if st.button('Analyze'):
+    if user_input:
+        # Preprocess the input text
+        processed_text = text_preprocessing(user_input)
+        prediction = model.predict([[processed_text]])
+        sentiment = "Positive" if prediction[0] > 0.5 else "Negative"
+
+        # Display the result
+        st.write(f"Sentiment: {sentiment}")
+    else:
+        st.write("Please enter some text.")
 
-"""
-# Welcome to Streamlit!
-
-Edit `/streamlit_app.py` to customize this app to your heart's desire :heart:.
-If you have any questions, checkout our [documentation](https://docs.streamlit.io) and [community
-forums](https://discuss.streamlit.io).
-
-In the meantime, below is an example of what you can do with just a few lines of code:
-"""
-
-num_points = st.slider("Number of points in spiral", 1, 10000, 1100)
-num_turns = st.slider("Number of turns in spiral", 1, 300, 31)
-
-indices = np.linspace(0, 1, num_points)
-theta = 2 * np.pi * num_turns * indices
-radius = indices
-
-x = radius * np.cos(theta)
-y = radius * np.sin(theta)
-
-df = pd.DataFrame({
-    "x": x,
-    "y": y,
-    "idx": indices,
-    "rand": np.random.randn(num_points),
-})
-
-st.altair_chart(alt.Chart(df, height=700, width=700)
-    .mark_point(filled=True)
-    .encode(
-        x=alt.X("x", axis=None),
-        y=alt.Y("y", axis=None),
-        color=alt.Color("idx", legend=None, scale=alt.Scale()),
-        size=alt.Size("rand", legend=None, scale=alt.Scale(range=[1, 150])),
-    ))