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Delete dynamic_pricing_bandit_app.py
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dynamic_pricing_bandit_app.py
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# dynamic_pricing_bandit_app.py
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from datasets import load_dataset
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import pandas as pd
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import numpy as np
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import gradio as gr
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import json
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PRICE_POINTS = [5000, 7500, 10000, 12500, 15000]
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SEGMENTS = ["Retail", "HNI", "Corporate"]
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DEAL_TYPES = ["M&A Advisory", "Debt Issuance", "Equity Offering", "Restructuring"]
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REGIONS = ["North America", "Europe", "Asia Pacific", "Latin America", "Middle East"]
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INDUSTRIES = ["Technology", "Healthcare", "Financial Services", "Energy", "Consumer Goods", "Industrial"]
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class ThompsonBandit:
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def __init__(self, n_arms):
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self.successes = np.ones(n_arms)
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self.failures = np.ones(n_arms)
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def select_arm(self):
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return np.argmax(np.random.beta(self.successes, self.failures))
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def update(self, arm, reward):
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if reward:
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self.successes[arm] += 1
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else:
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self.failures[arm] += 1
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# Load HF dataset
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dataset = load_dataset("banking77", split="train[:500]")
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df = pd.DataFrame(dataset)
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df["segment"] = np.random.choice(SEGMENTS, len(df))
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df["deal_type"] = np.random.choice(DEAL_TYPES, len(df))
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df["deal_size"] = np.random.lognormal(mean=16, sigma=1.0, size=len(df)).astype(int)
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df["region"] = np.random.choice(REGIONS, len(df))
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df["industry"] = np.random.choice(INDUSTRIES, len(df))
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bandit = ThompsonBandit(len(PRICE_POINTS))
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def recommend_price(segment, deal_type, deal_size_str, region, industry):
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try:
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deal_size = float(deal_size_str.replace("$", "").replace(",", ""))
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arm = bandit.select_arm()
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price = PRICE_POINTS[arm]
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acceptance_prob = max(0.1, 1 - (price / PRICE_POINTS[-1]) * 0.8)
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accepted = np.random.binomial(1, acceptance_prob)
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bandit.update(arm, accepted)
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return f"Recommended Price: ${price:,}\nClient would {'accept' if accepted else 'decline'} this price."
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except Exception as e:
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return str(e)
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with gr.Blocks() as app:
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gr.Markdown("# Dynamic Pricing Bandit App")
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with gr.Row():
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with gr.Column():
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segment_input = gr.Dropdown(choices=SEGMENTS, label="Client Segment")
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deal_type_input = gr.Dropdown(choices=DEAL_TYPES, label="Deal Type")
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deal_size_input = gr.Textbox(label="Deal Size (USD)", value="$50000000")
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region_input = gr.Dropdown(choices=REGIONS, label="Region")
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industry_input = gr.Dropdown(choices=INDUSTRIES, label="Industry")
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btn = gr.Button("Get Recommendation")
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with gr.Column():
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result = gr.Markdown()
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btn.click(fn=recommend_price,
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inputs=[segment_input, deal_type_input, deal_size_input, region_input, industry_input],
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outputs=result)
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if __name__ == "__main__":
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app.launch()
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