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Ivan Reznikov, PhD

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Ivan Reznikov, PhD

LangChain 101 Course (updated)

LangChain 101 course sessions. All code is on GitHub. LLMs, Chatbots

4 min readOct 13, 2023

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LangChain 101 Course (updated)

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Ivan Reznikov, PhD
in
Towards AI

LangChain 101: Part 3b. Talking to Documents: Embeddings and Vectorstores

The terms vectorstores and embeddings are gaining more and more popularity. As soon as the idea of integration of LLMs with our own data…

11 min readFeb 12, 2024

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LangChain 101: Part 3b. Talking to Documents: Embeddings and Vectorstores

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Ivan Reznikov, PhD
in
Towards AI

LangChain 101: Part 3a. Talking to Documents: Load, Split and simple RAG with LCEL

This is Part 3 of the Langchain 101 series, where we’ll discuss how to load data, split it, store data, and create simple RAG with LCEL

9 min readFeb 5, 2024

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LangChain 101: Part 3a. Talking to Documents: Load, Split and simple RAG with LCEL

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Ivan Reznikov, PhD

MSc Data Science Lecture Notes. L3: Data Structures and Algorithms — Part 1 of 2

Today we’ll look into data types as list, tuple, set, dictionary. We’ll compare queue, stack, linked list, trees, graphs and hashmaps.

8 min readFeb 5, 2024

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MSc Data Science Lecture Notes. L3: Data Structures and Algorithms — Part 1 of 2

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Ivan Reznikov, PhD

MSc Data Science Lecture Notes. L2: Introduction to Statistics — Part 1 of 2

Demystifying Statistics: A Comprehensive Journey into Data Types, Descriptive and Inferential Statistics, Means, Medians and Modes

10 min readJan 28, 2024

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MSc Data Science Lecture Notes. L2: Introduction to Statistics — Part 1 of 2

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Ivan Reznikov, PhD

MSc Data Science Lecture Notes. L1: Introduction to Machine Learning

Master Degree in Data Science Insights: The Core of Machine Learning Explored

6 min readJan 21, 2024

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MSc Data Science Lecture Notes. L1: Introduction to Machine Learning

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Ivan Reznikov, PhD

Data Science Christmas Crossword Puzzle

The 2023 is about to end. It was an exciting year from a Data Science and Machine Learning perspective. I've prepared a Christmas Crossword…

1 min readDec 24, 2023

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Data Science Christmas Crossword Puzzle

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Ivan Reznikov, PhD

The Untold Drama: Why Sam Altman Was Fired from OpenAI

In this article, we’ll deeply dive into what led to Sam Altman being fired, why it happened, and what’s next with GhatGPT Plus, GPT4 and…

9 min readNov 18, 2023

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The Untold Drama: Why Sam Altman Was Fired from OpenAI

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Ivan Reznikov, PhD
in
Towards AI

LangChain Cheatsheet — All Secrets on a Single Page

The onepager summarizes the basics of LangChain. LangChain cheatsheet includes llms, prompts, memory, indexes, agents, chains and colab…

14 min readNov 15, 2023

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LangChain Cheatsheet — All Secrets on a Single Page

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Ivan Reznikov, PhD
in
Towards AI

LangChain 101: Part 2d. Fine-tuning LLMs with Human Feedback

How to implement reinforcement learning with human feedback for pre-trained LLMs. Consider if you want to fix bad chatbot responses

8 min readOct 12, 2023

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LangChain 101: Part 2d. Fine-tuning LLMs with Human Feedback

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Ivan Reznikov, PhD

Ivan Reznikov, PhD

PhD, Principal Data Scientist, Teaching DS @ Middlesex University. TEDx, GITEX, PyCon. https://www.linkedin.com/in/reznikovivan/ https://github.com/IvanReznikov

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