CJ Sullivan, Author at Towards Data Science https://towardsdatascience.com Publish AI, ML & data-science insights to a global community of data professionals. Wed, 09 Jul 2025 18:56:10 +0000 en-US hourly 1 https://wordpress.org/?v=6.8.1 https://towardsdatascience.com/wp-content/uploads/2025/02/cropped-Favicon-32x32.png CJ Sullivan, Author at Towards Data Science https://towardsdatascience.com 32 32 What I Learned in my First 18 Months as a Freelance Data Scientist https://towardsdatascience.com/what-i-learned-in-my-first-18-months-as-a-freelance-data-scientist-the-taxes-and-health-insurance-edition/ Wed, 09 Jul 2025 01:05:17 +0000 https://towardsdatascience.com/?p=606529 The taxes and health insurance edition

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]]> What I Learned in my First 9 Months as a Freelance Data Scientist https://towardsdatascience.com/what-i-learned-in-my-first-9-months-as-a-freelance-data-scientist-f7401382dc62/ Tue, 01 Oct 2024 12:17:32 +0000 https://towardsdatascience.com/what-i-learned-in-my-first-9-months-as-a-freelance-data-scientist-f7401382dc62/ Observations and lessons learned from in the trenches

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]]> What I Learned in my First 3 Months as a Freelance Data Scientist https://towardsdatascience.com/what-i-learned-in-my-first-3-months-as-a-freelance-data-scientist-8e3417ff8165/ Sat, 16 Mar 2024 22:01:54 +0000 https://towardsdatascience.com/what-i-learned-in-my-first-3-months-as-a-freelance-data-scientist-8e3417ff8165/ A potential new path for those subjected to tech layoffs?

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]]> What I Learned in my First Year as a Director of Data Science https://towardsdatascience.com/what-i-learned-in-my-first-year-as-a-director-of-data-science-76b79f26b09c/ Mon, 01 May 2023 18:29:17 +0000 https://towardsdatascience.com/what-i-learned-in-my-first-year-as-a-director-of-data-science-76b79f26b09c/ The continued and constant learnings on managing data science teams outside of tech

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]]> What I Learned in My First 6 Months as a Director of Data Science https://towardsdatascience.com/what-i-learned-in-my-first-6-months-as-a-director-of-data-science-d9b7b98a48f7/ Tue, 22 Nov 2022 18:55:27 +0000 https://towardsdatascience.com/what-i-learned-in-my-first-6-months-as-a-director-of-data-science-d9b7b98a48f7/ On the challenges and rewards of transitioning to a new role in a different industry

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]]> Making FastRP graph embeddings work for you https://towardsdatascience.com/making-fastrp-graph-embeddings-work-for-you-f7344a535dc3/ Sat, 20 Nov 2021 16:44:06 +0000 https://towardsdatascience.com/making-fastrp-graph-embeddings-work-for-you-f7344a535dc3/ How to tune the hyperparameters of FastRP to your specific problem

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]]> Behind the scenes on the Fast Random Projection algorithm for generating graph embeddings https://towardsdatascience.com/behind-the-scenes-on-the-fast-random-projection-algorithm-for-generating-graph-embeddings-efb1db0895/ Thu, 19 Aug 2021 12:52:56 +0000 https://towardsdatascience.com/behind-the-scenes-on-the-fast-random-projection-algorithm-for-generating-graph-embeddings-efb1db0895/ A detailed look into FastRP and its hyperparameters

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]]> Visualizing Graph Embeddings with t-SNE in Python https://towardsdatascience.com/visualizing-graph-embeddings-with-t-sne-in-python-10227e7876aa/ Fri, 25 Jun 2021 04:49:26 +0000 https://towardsdatascience.com/visualizing-graph-embeddings-with-t-sne-in-python-10227e7876aa/ How to qualitatively evaluate Neo4j graph embeddings

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]]> Getting Started with Graph Embeddings https://towardsdatascience.com/getting-started-with-graph-embeddings-2f06030e97ae/ Sun, 23 May 2021 13:45:23 +0000 https://towardsdatascience.com/getting-started-with-graph-embeddings-2f06030e97ae/ The first step to a machine learning pipeline using the Neo4j Graph Data Science Library

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]]> Get going with Neo4j and Jupyter Lab through Docker https://towardsdatascience.com/get-going-with-neo4j-and-jupyter-lab-through-docker-a1994e0e95c6/ Fri, 14 May 2021 19:56:23 +0000 https://towardsdatascience.com/get-going-with-neo4j-and-jupyter-lab-through-docker-a1994e0e95c6/ Why work with one at a time when you can work with both?

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]]> Create a graph database in Neo4j using Python https://towardsdatascience.com/create-a-graph-database-in-neo4j-using-python-4172d40f89c4/ Wed, 10 Feb 2021 05:38:48 +0000 https://towardsdatascience.com/create-a-graph-database-in-neo4j-using-python-4172d40f89c4/ From data cleaning to graph population

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]]> Importing CSV Files in Neo4j https://towardsdatascience.com/importing-csv-files-in-neo4j-f3553f1a76cf/ Thu, 28 Jan 2021 22:13:06 +0000 https://towardsdatascience.com/importing-csv-files-in-neo4j-f3553f1a76cf/ How to get started working with your own data

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]]> How to get started with the new Graph Data Science Library of Neo4j https://towardsdatascience.com/how-to-get-started-with-the-new-graph-data-science-library-of-neo4j-3c8fff6107b/ Mon, 02 Nov 2020 02:56:10 +0000 https://towardsdatascience.com/how-to-get-started-with-the-new-graph-data-science-library-of-neo4j-3c8fff6107b/ Big changes to the way graph data science is managed in Neo4j present big opportunity

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