During the ConForAll campaign for constitutional reform and the 2026 referendum in Thailand, a vast number of questions surfaced daily, ranging from core principles to public participation. To address this, we developed an intelligent AI assistant for the campaign. Our goal was to ensure fast, reliable, and 24/7 access to campaign information for everyone.

Goal & Challenge

To develop an AI chatbot capable of providing instant FAQ responses 24 hours a day, the primary challenge was accuracy. Given that the topic involves sensitive political issues, the chatbot should not interpret or invent answers. Every response had to be strictly grounded in an official database, stay on point, and handle delicate content with high reliability.

Data Preparation & Ingestion

To ensure precision, we focused on the data pipeline from the start. Our data workflow is as follows.

FAQ data collection
Data cleaning
Embedding process (converting text into vectors)
Building vector database (storage for retrieval)

We utilized a "1 FAQ = 1 Vector Row" structure. This method allows the chatbot to pinpoint exact questions in the database more effectively than traditional methods that scan long documents. This ensures a higher match rate for both identical and semantically similar queries.

Design & Technology

To meet our strict accuracy requirements, we implemented the following solutions:

Retrieval-Augmented Generation (RAG): The AI searches the official database first and generates answers solely based on that data, rather than relying on its general pre-trained knowledge.
Vector Database: FAQ data is converted into embedding vectors and stored in a specialized database for high-speed retrieval.
Hybrid Search Implementation:
- Semantic Similarity: Understanding the intent behind a question, even if the user uses different phrasing.
- Full-text Search: Matching specific keywords and figures (such as voter statistics or article numbers) with 100% accuracy.
Strict Prompt Engineering: We designed a Strict Context Constraint prompt. The AI is forbidden from using external knowledge, improvising, or summarizing outside the provided context. This eliminates the risk of AI hallucination regarding political information.

Results

We successfully deployed a chatbot that delivers accurate and easy-to-understand information instantly. Being available 24/7 has significantly reduced the manual workload for campaign admins, who had to answer only questions unrelated to the prepared FAQ data. Furthermore, real-time usage data has provided valuable insights into what the public is most concerned about, allowing the team to improve communication strategies and campaign effectiveness for the future.

Key Highlights

Zero-Hallucination Guardrails: Our strict prompt design ensures the AI stays within the official political narrative without external interference.
Precision Data Mapping: Using the "1 FAQ = 1 Vector" approach minimizes context errors and ensures users get the most relevant answer.
Optimized Hybrid Search: By combining semantic meaning with keyword matching, we solved the common AI struggle with specific Thai terminology and legal jargon.

ConForAll Chatbot

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