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README.md
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title: Customer Experience Bot Demo emoji: 🤖 colorFrom: blue colorTo: purple sdk: gradio sdk_version: "4.44.0" app_file: app.py pinned: false
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Customer Experience Bot Demo
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A cutting-edge Retrieval-Augmented Generation (RAG) and Context-Augmented Generation (CAG) powered Customer Experience (CX) bot, deployed on Hugging Face Spaces (free tier). Architected with over 5 years of AI expertise since 2020, this demo leverages advanced Natural Language Processing (NLP) pipelines to deliver high-fidelity, multilingual CX solutions for enterprise-grade applications in SaaS, HealthTech, FinTech, and eCommerce. The system showcases robust data preprocessing for call center datasets, integrating state-of-the-art technologies like Pandas for data wrangling, Hugging Face Transformers for embeddings, FAISS for vectorized retrieval, and FastAPI-compatible API design principles for scalable inference.
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Technical Architecture
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Retrieval-Augmented Generation (RAG) Pipeline
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The core of this CX bot is a RAG framework, designed to fuse retrieval and generation for contextually relevant responses. The pipeline employs:
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Hugging Face Transformers: Utilizes all-MiniLM-L6-v2, a lightweight Sentence-BERT model (~80MB), fine-tuned for semantic embeddings, to encode call center FAQs into dense vectors. This ensures efficient, high-dimensional representation of query semantics.
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FAISS (CPU): Implements a FAISS IndexFlatL2 for similarity search, enabling rapid retrieval of top-k FAQs (default k=2) via L2 distance metrics. FAISS’s CPU optimization ensures free-tier compatibility while maintaining sub-millisecond retrieval latency.
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Rule-Based Generation: Bypasses heavy LLMs (e.g., GPT-2) for free-tier constraints, using retrieved FAQ answers directly, achieving a simulated 95% accuracy while minimizing compute overhead.
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Context-Augmented Generation (CAG) Integration
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Building on RAG, the system incorporates CAG principles by enriching retrieved contexts with metadata (e.g., call_id, language) from call center CSVs. This contextual augmentation enhances response relevance, particularly for multilingual CX (e.g., English, Spanish), ensuring the bot adapts to diverse enterprise needs.
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Call Center Data Preprocessing with Pandas
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The bot ingests raw call center CSVs, which are often riddled with junk data (nulls, duplicates, malformed entries). Leveraging Pandas, the preprocessing pipeline:
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Data Ingestion: Parses CSVs with pd.read_csv, using io.StringIO for embedded data, with explicit quotechar and escapechar to handle complex strings.
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Junk Data Cleanup:
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Null Handling: Drops rows with missing question or answer using df.dropna().
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Duplicate Removal: Eliminates redundant FAQs via df[~df['question'].duplicated()].
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Short Entry Filtering: Excludes questions <10 chars or answers <20 chars with df[(df['question'].str.len() >= 10) & (df['answer'].str.len() >= 20)].
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Malformed Detection: Uses regex ([!?]{2,}|\b(Invalid|N/A)\b) to filter invalid questions.
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Standardization: Normalizes text (e.g., mo to month) and fills missing language with en.
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Output: Generates cleaned_call_center_faqs.csv for downstream modeling, with detailed cleanup stats (e.g., nulls, duplicates removed).
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Enterprise-Grade Modeling Compatibility
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The cleaned CSV is optimized for:
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Amazon SageMaker: Ready for training BERT-based models (e.g., bert-base-uncased) for intent classification or FAQ retrieval, deployable via SageMaker JumpStart.
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Azure AI: Compatible with Azure Machine Learning pipelines for fine-tuning models like DistilBERT in Azure Blob Storage, enabling scalable CX automation.
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LLM Integration: While not used in this free-tier demo, the cleaned data supports fine-tuning LLMs (e.g., distilgpt2) for generative tasks, leveraging your FastAPI experience for API-driven inference.
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Performance Monitoring and Visualization
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The bot includes a performance monitoring suite:
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Latency Tracking: Measures embedding, retrieval, and generation times using time.perf_counter(), reported in milliseconds.
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Accuracy Metrics: Simulates retrieval accuracy (95% if FAQs retrieved, 0% otherwise) for demo purposes.
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Visualization: Uses Matplotlib and Seaborn to plot a dual-axis chart (rag_plot.png):
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Bar Chart: Latency (ms) per stage (Embedding, Retrieval, Generation).
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Line Chart: Accuracy (%) per stage, with a muted palette for professional aesthetics.
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Gradio Interface for Interactive CX
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The bot is deployed via Gradio, providing a user-friendly interface:
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Bot response (e.g., “Go to the login page, click ‘Forgot Password,’...”).
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Retrieved FAQs with question-answer pairs.
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Cleanup stats (e.g., “Cleaned FAQs: 6; removed 4 junk entries”).
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RAG pipeline plot for latency and accuracy.
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Styling: Custom dark theme CSS (#2a2a2a background, blue buttons) for a sleek, enterprise-ready UI.
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Setup
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Clone this repository to a Hugging Face Space (free tier, public).
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Add requirements.txt with dependencies (gradio==4.44.0, pandas==2.2.3, etc.).
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Upload app.py (embeds call center FAQs for seamless deployment).
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Configure to run with Python 3.9+, CPU hardware (no GPU).
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Usage
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Retrieved FAQs: Top-k question-answer pairs.
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Cleanup Stats: Detailed breakdown of junk data removal (nulls, duplicates, short entries, malformed).
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RAG Plot: Visual metrics for latency and accuracy.
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Example:
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Query: “How do I reset my password?”
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Response: “Go to the login page, click ‘Forgot Password,’ and follow the email instructions.”
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Cleanup Stats: “Cleaned FAQs: 6; removed 4 junk entries: 2 nulls, 1 duplicates, 1 short, 0 malformed”
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Call Center Data Cleanup
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Preprocessing Pipeline:
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Null Handling: Eliminates incomplete entries with df.dropna().
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Duplicate Removal: Ensures uniqueness via df[~df['question'].duplicated()].
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Short Entry Filtering: Maintains quality with length-based filtering.
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Malformed Detection: Uses regex to identify and remove invalid queries.
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Standardization: Normalizes text and metadata for consistency.
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Impact: Produces high-fidelity FAQs for RAG/CAG pipelines, critical for call center CX automation.
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Modeling Output: The cleaned cleaned_call_center_faqs.csv is ready for:
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SageMaker: Fine-tuning BERT models for intent classification or FAQ retrieval.
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Azure AI: Training DistilBERT in Azure ML for scalable CX automation.
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LLM Fine-Tuning: Supports advanced generative tasks with LLMs via FastAPI endpoints.
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Technical Details
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Stack:
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Pandas: Data wrangling and preprocessing for call center CSVs.
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Hugging Face Transformers: all-MiniLM-L6-v2 for semantic embeddings.
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FAISS: Vectorized similarity search with L2 distance metrics.
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Gradio: Interactive UI for real-time CX demos.
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Matplotlib/Seaborn: Performance visualization with dual-axis plots.
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FastAPI Compatibility: Designed with API-driven inference in mind, leveraging your experience with FastAPI for scalable deployments (e.g., RESTful endpoints for RAG inference).
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Free Tier Optimization: Lightweight with CPU-only dependencies, no GPU required.
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Extensibility: Ready for integration with enterprise CRMs (e.g., Salesforce) via FastAPI, and cloud deployments on AWS Lambda or Azure Functions.
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Purpose
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This demo showcases expertise in AI-driven CX automation, with a focus on call center data quality, built on over 5 years of experience in AI, NLP, and enterprise-grade deployments. It demonstrates the power of RAG and CAG pipelines, Pandas-based data preprocessing, and scalable modeling for SageMaker and Azure AI, making it ideal for advanced CX solutions in call center environments.
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LLM Integration: Incorporate distilgpt2 or t5-small (from your past projects) for generative responses, fine-tuned on cleaned call center data.
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FastAPI Deployment: Expose RAG pipeline via FastAPI endpoints for production-grade inference.
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Multilingual Scaling: Expand language support (e.g., French, German) using Hugging Face’s multilingual models.
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**Website**: https://ghostainews.com/
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**Discord**: https://discord.gg/BfA23aYz
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title: Customer Experience Bot Demo emoji: 🤖 colorFrom: blue colorTo: purple sdk: gradio sdk_version: "4.44.0" app_file: app.py pinned: false
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# Customer Experience Bot Demo
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A cutting-edge Retrieval-Augmented Generation (RAG) and Context-Augmented Generation (CAG) powered Customer Experience (CX) bot, deployed on Hugging Face Spaces (free tier). Architected with over 5 years of AI expertise since 2020, this demo leverages advanced Natural Language Processing (NLP) pipelines to deliver high-fidelity, multilingual CX solutions for enterprise-grade applications in SaaS, HealthTech, FinTech, and eCommerce. The system showcases robust data preprocessing for call center datasets, integrating state-of-the-art technologies like Pandas for data wrangling, Hugging Face Transformers for embeddings, FAISS for vectorized retrieval, and FastAPI-compatible API design principles for scalable inference.
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## Technical Architecture
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### Retrieval-Augmented Generation (RAG) Pipeline
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The core of this CX bot is a RAG framework, designed to fuse retrieval and generation for contextually relevant responses. The pipeline employs:
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- **Hugging Face Transformers**: Utilizes `all-MiniLM-L6-v2`, a lightweight Sentence-BERT model (~80MB), fine-tuned for semantic embeddings, to encode call center FAQs into dense vectors. This ensures efficient, high-dimensional representation of query semantics.
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- **FAISS (CPU)**: Implements a FAISS `IndexFlatL2` for similarity search, enabling rapid retrieval of top-k FAQs (default k=2) via L2 distance metrics. FAISS’s CPU optimization ensures free-tier compatibility while maintaining sub-millisecond retrieval latency.
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- **Rule-Based Generation**: Bypasses heavy LLMs (e.g., GPT-2) for free-tier constraints, using retrieved FAQ answers directly, achieving a simulated 95% accuracy while minimizing compute overhead.
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### Context-Augmented Generation (CAG) Integration
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Building on RAG, the system incorporates CAG principles by enriching retrieved contexts with metadata (e.g., `call_id`, `language`) from call center CSVs. This contextual augmentation enhances response relevance, particularly for multilingual CX (e.g., English, Spanish), ensuring the bot adapts to diverse enterprise needs.
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### Call Center Data Preprocessing with Pandas
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The bot ingests raw call center CSVs, which are often riddled with junk data (nulls, duplicates, malformed entries). Leveraging Pandas, the preprocessing pipeline:
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- **Data Ingestion**: Parses CSVs with `pd.read_csv`, using `io.StringIO` for embedded data, with explicit `quotechar` and `escapechar` to handle complex strings.
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- **Junk Data Cleanup**:
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- **Null Handling**: Drops rows with missing question or answer using `df.dropna()`.
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- **Duplicate Removal**: Eliminates redundant FAQs via `df[~df['question'].duplicated()]`.
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- **Short Entry Filtering**: Excludes questions <10 chars or answers <20 chars with `df[(df['question'].str.len() >= 10) & (df['answer'].str.len() >= 20)]`.
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- **Malformed Detection**: Uses regex (`[!?]{2,}|\b(Invalid|N/A)\b`) to filter invalid questions.
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- **Standardization**: Normalizes text (e.g., "mo" to "month") and fills missing language with "en".
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- **Output**: Generates `cleaned_call_center_faqs.csv` for downstream modeling, with detailed cleanup stats (e.g., nulls, duplicates removed).
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### Enterprise-Grade Modeling Compatibility
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The cleaned CSV is optimized for:
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- **Amazon SageMaker**: Ready for training BERT-based models (e.g., `bert-base-uncased`) for intent classification or FAQ retrieval, deployable via SageMaker JumpStart.
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- **Azure AI**: Compatible with Azure Machine Learning pipelines for fine-tuning models like DistilBERT in Azure Blob Storage, enabling scalable CX automation.
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- **LLM Integration**: While not used in this free-tier demo, the cleaned data supports fine-tuning LLMs (e.g., `distilgpt2`) for generative tasks, leveraging your FastAPI experience for API-driven inference.
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+
## Performance Monitoring and Visualization
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The bot includes a performance monitoring suite:
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- **Latency Tracking**: Measures embedding, retrieval, and generation times using `time.perf_counter()`, reported in milliseconds.
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- **Accuracy Metrics**: Simulates retrieval accuracy (95% if FAQs retrieved, 0% otherwise) for demo purposes.
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- **Visualization**: Uses Matplotlib and Seaborn to plot a dual-axis chart (`rag_plot.png`):
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- Bar Chart: Latency (ms) per stage (Embedding, Retrieval, Generation).
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- Line Chart: Accuracy (%) per stage, with a muted palette for professional aesthetics.
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## Gradio Interface for Interactive CX
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The bot is deployed via Gradio, providing a user-friendly interface:
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- **Input**: Text query field for user inputs (e.g., “How do I reset my password?”).
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- **Outputs**:
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- Bot response (e.g., “Go to the login page, click ‘Forgot Password,’...”).
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- Retrieved FAQs with question-answer pairs.
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- Cleanup stats (e.g., “Cleaned FAQs: 6; removed 4 junk entries”).
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- RAG pipeline plot for latency and accuracy.
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- **Styling**: Custom dark theme CSS (`#2a2a2a` background, blue buttons) for a sleek, enterprise-ready UI.
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+
## Setup
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| 74 |
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| 75 |
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- Clone this repository to a Hugging Face Space (free tier, public).
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- Add `requirements.txt` with dependencies (`gradio==4.44.0`, `pandas==2.2.3`, etc.).
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- Upload `app.py` (embeds call center FAQs for seamless deployment).
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- Configure to run with Python 3.9+, CPU hardware (no GPU).
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| 79 |
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## Usage
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| 81 |
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| 82 |
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- **Query**: Enter a question in the Gradio UI (e.g., “How do I reset my password?”).
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| 83 |
+
- **Output**:
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| 84 |
+
- **Response**: Contextually relevant answer from retrieved FAQs.
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| 85 |
+
- **Retrieved FAQs**: Top-k question-answer pairs.
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| 86 |
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- **Cleanup Stats**: Detailed breakdown of junk data removal (nulls, duplicates, short entries, malformed).
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| 87 |
+
- **RAG Plot**: Visual metrics for latency and accuracy.
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| 88 |
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| 89 |
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**Example**:
|
| 90 |
+
- **Query**: “How do I reset my password?”
|
| 91 |
+
- **Response**: “Go to the login page, click ‘Forgot Password,’ and follow the email instructions.”
|
| 92 |
+
- **Cleanup Stats**: “Cleaned FAQs: 6; removed 4 junk entries: 2 nulls, 1 duplicates, 1 short, 0 malformed”
|
| 93 |
+
- **RAG Plot**: Latency (Embedding: 10ms, Retrieval: 5ms, Generation: 2ms), Accuracy: 95%
|
| 94 |
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| 95 |
+
## Call Center Data Cleanup
|
| 96 |
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| 97 |
+
### Preprocessing Pipeline:
|
| 98 |
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- **Null Handling**: Eliminates incomplete entries with `df.dropna()`.
|
| 99 |
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- **Duplicate Removal**: Ensures uniqueness via `df[~df['question'].duplicated()]`.
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| 100 |
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- **Short Entry Filtering**: Maintains quality with length-based filtering.
|
| 101 |
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- **Malformed Detection**: Uses regex to identify and remove invalid queries.
|
| 102 |
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- **Standardization**: Normalizes text and metadata for consistency.
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| 103 |
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| 104 |
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### Impact:
|
| 105 |
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Produces high-fidelity FAQs for RAG/CAG pipelines, critical for call center CX automation.
|
| 106 |
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| 107 |
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### Modeling Output:
|
| 108 |
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The cleaned `cleaned_call_center_faqs.csv` is ready for:
|
| 109 |
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- **SageMaker**: Fine-tuning BERT models for intent classification or FAQ retrieval.
|
| 110 |
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- **Azure AI**: Training DistilBERT in Azure ML for scalable CX automation.
|
| 111 |
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- **LLM Fine-Tuning**: Supports advanced generative tasks with LLMs via FastAPI endpoints.
|
| 112 |
|
| 113 |
+
## Technical Details
|
| 114 |
|
| 115 |
+
**Stack**:
|
| 116 |
+
- **Pandas**: Data wrangling and preprocessing for call center CSVs.
|
| 117 |
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- **Hugging Face Transformers**: `all-MiniLM-L6-v2` for semantic embeddings.
|
| 118 |
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- **FAISS**: Vectorized similarity search with L2 distance metrics.
|
| 119 |
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- **Gradio**: Interactive UI for real-time CX demos.
|
| 120 |
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- **Matplotlib/Seaborn**: Performance visualization with dual-axis plots.
|
| 121 |
+
- **FastAPI Compatibility**: Designed with API-driven inference in mind, leveraging your experience with FastAPI for scalable deployments (e.g., RESTful endpoints for RAG inference).
|
| 122 |
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| 123 |
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**Free Tier Optimization**: Lightweight with CPU-only dependencies, no GPU required.
|
| 124 |
|
| 125 |
+
**Extensibility**: Ready for integration with enterprise CRMs (e.g., Salesforce) via FastAPI, and cloud deployments on AWS Lambda or Azure Functions.
|
| 126 |
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| 127 |
+
## Purpose
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|
| 128 |
|
| 129 |
This demo showcases expertise in AI-driven CX automation, with a focus on call center data quality, built on over 5 years of experience in AI, NLP, and enterprise-grade deployments. It demonstrates the power of RAG and CAG pipelines, Pandas-based data preprocessing, and scalable modeling for SageMaker and Azure AI, making it ideal for advanced CX solutions in call center environments.
|
| 130 |
|
| 131 |
+
## Latest Update
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|
| 132 |
|
| 133 |
+
**Status Update**: Placeholder update - January 01, 2025 📝
|
| 134 |
+
- Placeholder update text.
|
| 135 |
|
| 136 |
+
## Future Enhancements
|
| 137 |
|
| 138 |
+
- **LLM Integration**: Incorporate `distilgpt2` or `t5-small` (from your past projects) for generative responses, fine-tuned on cleaned call center data.
|
| 139 |
+
- **FastAPI Deployment**: Expose RAG pipeline via FastAPI endpoints for production-grade inference.
|
| 140 |
+
- **Multilingual Scaling**: Expand language support (e.g., French, German) using Hugging Face’s multilingual models.
|
| 141 |
+
- **Real-Time Monitoring**: Add Prometheus metrics for latency/accuracy in production environments.
|
| 142 |
|
| 143 |
+
**Website**: https://ghostainews.com/
|
| 144 |
**Discord**: https://discord.gg/BfA23aYz
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