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Bhoop singh Gurjar

AI Deep Explorer | f...ย โ€ขย 22d

"A Survey on Post-Training of Large Language Models" This paper systematically categorizes post-training into five major paradigms: 1. Fine-Tuning 2. Alignment 3. Reasoning Enhancement 4. Efficiency Optimization 5. Integration & Adaptation 1๏ธโƒฃ Fine-Tuning: Adapting AI for Specific Tasks Fine-tuning involves training an LLM on specialized datasets to improve accuracy in domain-specific tasks. ๐Ÿ”น Types of Fine-Tuning โœ“Supervised Fine-Tuning (SFT) โ€“ Uses labeled data to train AI for task-specific expertise (e.g., legal, finance, healthcare). โœ“Instruction Tuning โ€“ Improves how LLMs follow complex prompts and generate structured responses. โœ“Reinforcement Fine-Tuning โ€“ AI learns dynamically based on rewards or penalties from user interactions. ๐Ÿ”น Example Use Cases โœ… Fine-tuning an AI chatbot for customer service in banking. 2๏ธโƒฃ Alignment: Ensuring Ethical AI Behavior AI must align with human preferences to prevent misinformation, bias, or harmful content. ๐Ÿ”น Key Alignment Methods โœ“Reinforcement Learning with Human Feedback (RLHF) โ€“ AI learns from human-generated reward signals to improve responses. โœ“Direct Preference Optimization (DPO) โ€“ AI is trained directly on user preferences rather than just reward models. โœ“Reinforcement Learning with AI Feedback (RLAIF) โ€“ AI learns by evaluating itself, reducing reliance on human supervision. ๐Ÿ”น Example Use Cases โœ… Preventing biased or toxic content generation in AI chatbots. 3๏ธโƒฃ Reasoning Enhancement: Teaching AI to Think More Logically Pre-trained LLMs often struggle with multi-step reasoning, requiring specialized post-training. ๐Ÿ”น Key Techniques for Reasoning Improvement โœ“Chain-of-Thought (CoT) prompting โ€“ AI breaks problems into smaller logical steps for better reasoning. โœ“Self-Consistency Training โ€“ AI verifies its own responses to improve accuracy. โœ“Graph-Based Learning โ€“ AI models relationships between different concepts for better inferencing. ๐Ÿ”น Example Use Cases โœ… Improving AIโ€™s math problem-solving ability. 4๏ธโƒฃ Efficiency Optimization: Making AI Faster & More Cost-Effective AI models are resource-intensive, requiring optimizations to reduce computational costs. ๐Ÿ”น Key Efficiency Techniques โœ“Parameter-Efficient Fine-Tuning (PEFT) โ€“ Updates only specific parts of a model instead of retraining everything. โœ“LoRA (Low-Rank Adaptation) โ€“ Reduces memory usage while maintaining performance. ๐Ÿ”น Example Use Cases โœ… Running AI models on mobile devices with limited resources. 5๏ธโƒฃ Integration & Adaptation: Expanding AIโ€™s Capabilities Beyond Text Modern AI systems need to process more than just textโ€”they must understand images, audio, and real-time data. ๐Ÿ”น Key Multi-Modal AI Techniques โœ“Vision-Language Models (VLMs) โ€“ AI interprets both text and images simultaneously. โœ“Cross-Modal Learning โ€“ AI integrates audio, video, and sensor data for broader applications. ๐Ÿ”น Example Use Cases โœ… AI-powered medical diagnosis using text + image analysis.

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