---
title: "Andrea D’Agostino (@thedrewdag) | Hashnode"
description: "Data science & AI Consultant. Read the latest articles by Andrea D’Agostino on Hashnode."
url: "https://hashnode.com/@thedrewdag"
---

@thedrewdag

# Andrea D’Agostino

@thedrewdag · Italy · Joined January 2023

Data science & AI Consultant

### [Extract any entity from text with GLiNER](https://dag.hashnode.dev/extract-any-entity-from-text-with-gliner?utm_source=hashnode&utm_medium=feed)

GLiNER is an NER model that can identify any type of entity using a bidirectional transformer encoder (similar to BERT) that outperforms ChatGPT

6 min read · [dag.hashnode.dev](https://dag.hashnode.dev/extract-any-entity-from-text-with-gliner?utm_source=hashnode&utm_medium=feed)

[Mar 21, 2024](https://hashnode.com/posts/extract-any-entity-from-text-with-gliner/65fca04c398512b3b78037f3)

### [Beyond RAG: Network Analysis through LLMs for Knowledge Extraction](https://dag.hashnode.dev/beyond-rag-network-analysis-through-llms-for-knowledge-extraction?utm_source=hashnode&utm_medium=feed)

End-to-end data science project using Streamlit, Upstash, and OpenAI to build better knowledge navigation and comprehension using network analysis

29 min read · [dag.hashnode.dev](https://dag.hashnode.dev/beyond-rag-network-analysis-through-llms-for-knowledge-extraction?utm_source=hashnode&utm_medium=feed)

[Mar 19, 2024](https://hashnode.com/posts/beyond-rag-network-analysis-through-llms-for-knowledge-extraction/65f95a5cd80e391cb6200766)

### [Introduction to PCA in Python with Sklearn, Pandas, and Matplotlib](https://dag.hashnode.dev/introduction-to-pca-in-python-with-sklearn-pandas-and-matplotlib?utm_source=hashnode&utm_medium=feed)

Learn the intuition behind PCA in Python and Sklearn by transforming a multidimensional dataset into an arbitrary number of dimensions

12 min read · [dag.hashnode.dev](https://dag.hashnode.dev/introduction-to-pca-in-python-with-sklearn-pandas-and-matplotlib?utm_source=hashnode&utm_medium=feed)

[Nov 21, 2023](https://hashnode.com/posts/introduction-to-pca-in-python-with-sklearn-pandas-and-matplotlib/655cb80e68699f93453f0dc1)

### [Data Leakage: What It Is and Why It Causes Our Predictive Systems to Fail](https://dag.hashnode.dev/data-leakage-what-it-is-and-why-it-causes-our-predictive-systems-to-fail?utm_source=hashnode&utm_medium=feed)

Data leakage represents, together with over/underfitting, the main cause of failure of machine learning projects that go into production Data leakage is undoubtedly a threat that preys on data scientists, regardless of the level of seniority. It is t...

6 min read · [dag.hashnode.dev](https://dag.hashnode.dev/data-leakage-what-it-is-and-why-it-causes-our-predictive-systems-to-fail?utm_source=hashnode&utm_medium=feed)

[Sep 6, 2023](https://hashnode.com/posts/data-leakage-what-it-is-and-why-it-causes-our-predictive-systems-to-fail/64f8f1eb84f685c2f5cde834)

### [Work vulnerability in the age of AI](https://dag.hashnode.dev/work-vulnerability-in-the-age-of-ai?utm_source=hashnode&utm_medium=feed)

We are experiencing a revolution. Artificial intelligence is (finally) making its way into our lives, creating a lot of amazement but also a lot of co

8 min read · [dag.hashnode.dev](https://dag.hashnode.dev/work-vulnerability-in-the-age-of-ai?utm_source=hashnode&utm_medium=feed)

[Apr 25, 2023](https://hashnode.com/posts/work-vulnerability-in-the-age-of-ai/6447af6774524a8efcc667bf)