Abrahams-Rizzardi AssociatesData Science ~ Software Engineering ~ Statistics We are a two-person contract-work firm, in operation since 1990, that specializes in customized statistical analysis, data science, and related software development. We consult on both short- and long-term projects. We are located in Berkeley, California, but will travel as necessary. Particular interests include multivariate/multifactor time series data and low signal-to-noise problems such as (but not limited to) those found in financial markets. Projects have ranged from research — with emphasis on data exploration, asking and answering questions, investigating, developing, and coding customized methods — to production — with emphasis on algorithm validation, data validation, error handling/recovery (“bullet-proofing”), user-friendliness, and clear documentation. Tools used include Python, NumPy, Pandas, Xarray, SKlearn, Matplotlib, Seaborn, R, C, Linux, bash scripting, Cygwin, WxPython, and (in the past) Perl, tcsh, Octave (a Matlab workalike) … and even Fortran(!). We can deliver products that run on either Linux/Unix or Windows (or both). Additional capabilities include: • Numerical workflow automation • Data cleaning, validation, and reformulation • Statistical code refactoring • Technical documentation • SOHO Linux installation and configuration (emphasis on Ubuntu and CentOS) with particular knowledge of: • multiboot installs • automated backups • Samba administration for Windows clients on Linux servers • disk partitioning and backup strategies for resiliance with respect to disaster recovery, OS upgrades, and multibooting. Clients have included: California Statistical Software Inc., DSI International Management, Hitachi High-Tech America Inc., MediaCom, PaineWebber Group Inc., Sakura Sky Media Pty Ltd., UBS Global Asset Management, and (as partners) Piscataqua Capital Management, LLC. Our personnel:
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