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# set path
import glob, os, sys; sys.path.append('/src')
#import helper
from src import preprocessing as pre
from src import cleaning as clean
#import needed libraries
import seaborn as sns
from pandas import DataFrame
from keybert import KeyBERT
from transformers import pipeline
import matplotlib.pyplot as plt
import numpy as np
import streamlit as st
import pandas as pd
import tempfile
def app():
with st.container():
st.markdown("<h1 style='text-align: center; color: black;'> Policy Action Tracking</h1>", unsafe_allow_html=True)
st.write(' ')
st.write(' ')
with st.expander("ℹ️ - About this app", expanded=True):
st.write(
"""
The *Policy Action Tracker* app is an easy-to-use interface built in Streamlit for analyzing policy documents - developed by GIZ Data and the Sustainable Development Solution Network.
It uses a minimal keyword extraction technique that leverages multiple NLP embeddings and relies on [Transformers] (https://huggingface.co/transformers/) 🤗 to create keywords/keyphrases that are most similar to a document.
"""
)
st.markdown("")
st.markdown("")
st.markdown("## 📌 Step One: Upload document ")
with st.container():
file = st.file_uploader('Upload PDF File', type=['pdf', 'docx', 'txt'])
if file is not None:
with tempfile.NamedTemporaryFile(mode="wb") as temp:
bytes_data = file.getvalue()
temp.write(bytes_data)
st.write("Filename: ", file.name)
# load document
docs = pre.load_document(temp.name, file)
# preprocess document
docs_processed, df, all_text, par_list = clean.preprocessing(docs)
# testing
# st.write(len(all_text))
# for i in par_list:
# st.write(i)
@st.cache(allow_output_mutation=True)
def load_keyBert():
return KeyBERT()
kw_model = load_keyBert()
keywords = kw_model.extract_keywords(
all_text,
keyphrase_ngram_range=(1, 2),
use_mmr=True,
stop_words="english",
top_n=15,
diversity=0.7,
)
st.markdown("## 🎈 What is my document about?")
df = (
DataFrame(keywords, columns=["Keyword/Keyphrase", "Relevancy"])
.sort_values(by="Relevancy", ascending=False)
.reset_index(drop=True)
)
df.index += 1
# Add styling
cmGreen = sns.light_palette("green", as_cmap=True)
cmRed = sns.light_palette("red", as_cmap=True)
df = df.style.background_gradient(
cmap=cmGreen,
subset=[
"Relevancy",
],
)
c1, c2, c3 = st.columns([1, 3, 1])
format_dictionary = {
"Relevancy": "{:.1%}",
}
df = df.format(format_dictionary)
with c2:
st.table(df)
######## SDG classiciation
# @st.cache(allow_output_mutation=True)
# def load_sdgClassifier():
# classifier = pipeline("text-classification", model= "../models/osdg_sdg/")
# return classifier
# load from disc (github repo) for performance boost
@st.cache(allow_output_mutation=True)
def load_sdgClassifier():
classifier = pipeline("text-classification", model="jonas/sdg_classifier_osdg")
return classifier
classifier = load_sdgClassifier()
# # not needed, par list comes from pre_processing function already
# word_list = all_text.split()
# len_word_list = len(word_list)
# par_list = []
# par_len = 130
# for i in range(0,len_word_list // par_len):
# string_part = ' '.join(word_list[i*par_len:(i+1)*par_len])
# par_list.append(string_part)
labels = classifier(par_list)
labels_= [(l['label'],l['score']) for l in labels]
df = DataFrame(labels_, columns=["SDG", "Relevancy"])
df['text'] = par_list
df = df.sort_values(by="Relevancy", ascending=False).reset_index(drop=True)
df.index += 1
df =df[df['Relevancy']>.85]
x = df['SDG'].value_counts()
plt.rcParams['font.size'] = 25
colors = plt.get_cmap('Blues')(np.linspace(0.2, 0.7, len(x)))
# plot
fig, ax = plt.subplots()
ax.pie(x, colors=colors, radius=2, center=(4, 4),
wedgeprops={"linewidth": 1, "edgecolor": "white"}, frame=False,labels =list(x.index))
st.markdown("## 🎈 Anything related to SDGs?")
c4, c5, c6 = st.columns([5, 7, 1])
# Add styling
cmGreen = sns.light_palette("green", as_cmap=True)
cmRed = sns.light_palette("red", as_cmap=True)
df = df.style.background_gradient(
cmap=cmGreen,
subset=[
"Relevancy",
],
)
format_dictionary = {
"Relevancy": "{:.1%}",
}
df = df.format(format_dictionary)
with c4:
st.pyplot(fig)
with c5:
st.table(df)
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