ACT: Bridging the Gap in Code Translation through Synthetic Data Generation & Adaptive Training

• URL: http://arxiv.org/abs/2507.16478v1
• Date: Tue, 22 Jul 2025 11:35:35 GMT
• Title: ACT: Bridging the Gap in Code Translation through Synthetic Data Generation & Adaptive Training
• Authors: Shreya Saxena, Siva Prasad, Zishan Ahmad, Vishal Vaddina,
• Abstract summary: Auto-Train for Code Translation (ACT) aims to improve code translation capabilities by enabling in-house finetuning of open-source Large Language Models (LLMs)<n>ACT's automated pipeline significantly boosts the performance of these models, narrowing the gap between open-source accessibility and the high performance of closed-source solutions.<n>Our results demonstrate that ACT consistently enhances the effectiveness of open-source models, offering businesses and developers a secure and reliable alternative.
• Score: 1.4709455282157278
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Code translation is a crucial process in software development and migration projects, enabling interoperability between different programming languages and enhancing software adaptability and thus longevity. Traditional automated translation methods rely heavily on handcrafted transformation rules, which often lack flexibility and scalability. Meanwhile, advanced language models present promising alternatives but are often limited by proprietary, API-based implementations that raise concerns over data security and reliance. In this paper, we present Auto-Train for Code Translation (ACT), an innovative framework that aims to improve code translation capabilities by enabling in-house finetuning of open-source Large Language Models (LLMs). ACT's automated pipeline significantly boosts the performance of these models, narrowing the gap between open-source accessibility and the high performance of closed-source solutions. Central to ACT is its synthetic data generation module, which builds extensive, high-quality datasets from initial code samples, incorporating unit tests to ensure functional accuracy and diversity. ACT's evaluation framework incorporates execution-level checks, offering a comprehensive assessment of translation quality. A key feature in ACT is its controller module, which manages the entire pipeline by dynamically adjusting hyperparameters, orchestrating iterative data generation, and finetuning based on real-time evaluations. This enables ACT to intelligently optimize when to continue training, generate additional targeted training data, or stop the process. Our results demonstrate that ACT consistently enhances the effectiveness of open-source models, offering businesses and developers a secure and reliable alternative. Additionally, applying our data generation pipeline to industry-scale migration projects has led to a notable increase in developer acceleration.

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