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heidloff.net - Building is my Passion
Niklas Heidloff
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Python and PyTorch for AI Engineers

IT professionals who want to become AI engineers need to learn new technologies. This post summarizes the languages and frameworks that I’ve started to look into recently. As a developer I’ve lear...

Understanding In-Context Learning for LLMs

There are different ways to train and tune LLM models. This post summarizes some interesting findings from a research paper whether prompts can change the behavior of models. There are several opt...

Understanding Chain of Thought Prompting

This post describes the ‘Chain of Thought’ pattern for large language models. The technique is simple, but at the same time powerful to help AI models to understanding reasoning. Some of my previo...

Evaluating Question Answering Solutions

Retrieval Augmented Generation (RAG) solutions like Question Answering are not easy to evaluate. This post summarizes some options with their pros and cons. Question Answering solutions are more t...

Retrieval Augmented Generation with Chroma and LangChain

ChatGPT is more than just the GPT model. Similarly, the AI task Question Answering is also more than invoking just one model. This post describes a simple flow that leverages vector search via Chro...

Searching Documents related to Questions via Embeddings

In large language models embeddings are numerical representations of words, phrases, or sentences that capture their meaning and context. This post describes how to use embeddings to search and rer...

Fine-tuning small LLMs with Output from large LLMs

The innovation in the AI space is continuing in an incredible speed. This post describes a new technique that has evolved recently which allows smaller fine-tuned models to almost reach the perform...

Generating synthetic Data with Large Language Models

When fine-tuning large language models there is often not enough data available. This post describes how to use the Falcon model to generate synthetic data. An incredible feature of Large Language...

Instruction Fine-tuning of Large Language Models

This post explains what ‘instruct’ versions of Large Language Models are and how instructions can be used for efficient fine-tuning. Often there are instruct versions of popular Large Language Mod...

Efficient Fine-tuning with PEFT and LoRA

Classic fine-tuning of Large Language Models typically changes most weights of the models which requires a lot of resources. LoRA based fine-tuning freezes the original weights and only trains a sm...

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The postings on this site are my own and don’t necessarily represent IBM’s positions, strategies or opinions.
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