Harvey J. Stein
Essays and commentary from a member of the quantitative community
Monday, September 1, 2025
Adventures in AI, Part III: Anthropic's Claude
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Conversation with Claude After Gemini and Copilot failed to convert the Hamptons Jitney schedule to an Outlook .ICS file, I tried Claude. I...
Adventures in AI, Part II: Microsoft Copilot
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Conversation with Microsoft Copilot Google's Gemini Pro could (inaccurately) convert the Hampton Jitney schedule to events, but couldn...
Adventures in AI, Part 1: Gemini Pro
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Conversation with Gemini Pro I asked Gemini Pro to to convert the Hampton Jitney schedule to events in my Google calendar, adding them into...
Monday, December 21, 2020
COVID-19 in NYC - Analysis of Latest Data
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From my latest NYC analysis, (cell 12, in https://github.com/hjstein/coronavirus-data/blob/master/Notebooks/Current.ipynb , updated this mo...
Monday, November 2, 2020
COVID-19 SECOND WAVE IN NYC? YES AND NO
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Since September, NYC COVID-19 infection rates have been mostly increasing. This has lead to a spike in news articles, such as New York Ci...
Thursday, May 14, 2020
COVID-19 data collection: Garbage In, Garbage Out
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Introduction If you recall my 4/21 analysis of the NYC COVID-19 data ( COVID-19 NYC Stats – Not What They Seem ), you’d remember a grap...
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Tuesday, April 21, 2020
Covid-19 NYC Stats - Not What They Seem
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I always say that before developing a model, it's important to look at and understand the data. It's all too easy to jump into mod...
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