Posts by JJ Brosnan
Detect credit card fraud with Deephaven
Credit card fraud analysis using DBSCAN and Deephaven
November 17 2021 • 14 min read
Jump right into Python machine learning with Deephaven
Base+ images for AI/ML in Python make getting started quicker than ever
January 14 2022 • 2 min read
Introducing Deephaven Learn: Your new favorite tool for real-time AI in Python
Real-time data science, AI, and ML with Deephaven
January 20 2022 • 5 min read
Real-time classification with Deephaven and SciKit-Learn
Early Diabetes classification via risk factors with Deephaven
February 2 2022 • 9 min read
Real-time sentiment analysis using an LSTM network in TensorFlow
Sentiment Analysis in Deephaven with TensorFlow
February 8 2022 • 9 min read
Speed up Python code that uses NumPy
Python code that uses NumPy can be sped up further by setting array contiguity
March 2 2022 • 5 min read
From 16 to 8 - Which Python packages made it through?
The Round 3 recap of the Python Package tournament
March 28 2022 • 5 min read
The MVP trophy goes to...pandas!
Announcing the winner of the Python Package tournament
April 11 2022 • 4 min read
A new matchmaking format for solo queue players in team games
Creating even teams from a pool of solo queue players for tournament play
May 20 2022 • 7 min read
Store historical crypto data without file bloat
Make Parquet your new data storage standard
June 1 2022 • 3 min read
Calculate cumulative portfolio returns in real time
Using Deephaven for real-time and static portfolio analysis
June 15 2022 • 5 min read
Create your own historical crypto database from scratch
Leverage the CryptoWatch REST API with Deephaven and Parquet
June 23 2022 • 4 min read
Plot crypto prices in real time
Deephaven's plugin enables Matplotlib to work with real-time data
June 24 2022 • 6 min read
My favorite pandas DataFrame viewer
Eyeballs help when cleaning data
August 3 2022 • 12 min read
2 easy steps to inspect any Parquet file in seconds
Break away from CSV altogether
August 12 2022 • 2 min read
Get the most up-to-date crypto data
Using Apache Airflow to transform up-to-date crypto data
September 7 2022 • 4 min read
Crypto price predictions with TensorFlow
An AI model built for static analysis applied to real-time data
September 16 2022 • 4 min read
Nvidia RAPIDS for crypto price prediction
A GPU-centric platform for machine learning
September 23 2022 • 4 min read
Testing machine learning models on simulated real-time data feeds
Leveraging Deephaven's TableReplayer to ensure model efficacy in real time
October 4 2022 • 5 min read
Real-time crypto price predictions with Deephaven and AI
Using the Coinbase API to perform real-time price predictions
October 11 2022 • 7 min read
Publish data like you never have before
URIs make sharing easy
October 25 2022 • 5 min read
Sharing predicted crypto prices with URIs
Deephaven's URI package makes sharing tables easy
October 31 2022 • 3 min read
24 powerful Deephaven tools for data analysis
Tricks for tables every data scientist should know
November 25 2022 • 9 min read
Deephaven tables now support Python type hints
New, simpler query strings
December 14 2022 • 3 min read
Rollup tables for real-time data processing
Combining aggregations with hierarchy
February 10 2023 • 3 min read
Database connectivity comes to Deephaven
Leverage ADBC and ODBC for fast data extraction
February 17 2023 • 3 min read
Leverage GitHub's awesome REST API
Managing user-submitted GitHub issues with Deephaven
March 3 2023 • 5 min read
From database to table
Execute SQL queries in Deephaven
March 17 2023 • 3 min read
Lightning fast Python queries
Overcome Python's limitations with built-in query language methods
May 5 2023 • 8 min read
Real-time windowed and cumulative calculations made easy
Performance and efficiency with expressive syntax
June 22 2023 • 5 min read
A simple (but not obvious) way to improve query performance
Avoid unnecessary recalculations in query strings
June 30 2023 • 3 min read
Real-time semantic search
Deephaven + Weaviate
August 4 2023 • 6 min read
Deephaven and asyncio for live crypto monitoring
Create streaming tables to capture Coinbase data
September 1 2023 • 6 min read
Ultra fast joins with multi-join
Joining multitudes of tables seamlessly and quickly
September 25 2023 • 6 min read
Easily create interactive apps
Deephaven apps via bidirectional plugins
September 29 2023 • 3 min read
Technical analysis made easy
Bollinger Bands with two table operations
October 26 2023 • 6 min read
Technical analysis without external libraries
Calculating indicators and oscillators
November 22 2023 • 4 min read
Deephaven and Iceberg
Big data storage meets big data processing
September 6 2024 • 5 min read
Why partitioned tables are powerful
The benefits of partitioning data
September 27 2024 • 9 min read