### 07-28, 12:00–12:30 (US/Eastern), 26-100

Mathematics is a science and one of the most important discoveries of the human race on earth. In our daily life, we use mathematics knowingly and unknowingly. Many of us are unaware that forensic experts use mathematics to solve crime mysteries. In this talk, we will explore how Sherlock Holmes, the famous fictional detective character created by Sir Arthur Conan Doyle uses Mathematics and Julia programming language to solve crime mysteries.

Mathematics is a science and one of the most important discoveries of the human race on earth. Math is everywhere and around us. It is in nature, music, sports, economics, engineering, and so on. In our daily life, we use mathematics knowingly and unknowingly. Many of us are unaware that forensic experts use mathematics to solve crime mysteries. In this talk, we will explore how Sherlock Holmes, the famous fictional detective character created by Sir Arthur Conan Doyle uses Mathematics and Julia programming language to solve crime mysteries. We will solve simple crime puzzles using mathematics and Julia scripts. Finally, we will solve a few complex hypothetical crime mysteries using advanced Julia concepts. The participants will learn how to use the concepts of mathematics such as statistics, probability, trigonometry, and graph theory, and Julia and its packages such as Measurements.jl, Plots.jl, Graphs.jl, DataFrames.jl, RecursiveArrayTools.jl, and MatrixNetworks.jl to solve the crime puzzles.

Outline

1. Why Julia for forensics? (05 Minutes)

2. Review of Mathematics concepts required to solve crimes (05 Minutes)

3. Solving simple puzzles (10 Minutes)

i) Estimate the pressure of a shoe print on a soft ground

ii) Calculate the percentage of concentrations

iii) Compute bloodstain thickness

iv) Ricochet analysis and aspects of ballistics

v) Suicide, Accident or murder?

4. Advanced Problems (10 Minutes)

i) A Game of Shadows

ii) Bicycle Problem

iii) Detect the location of a serial killer

I am Gajendra Deshpande and I am using Python since 2013 for academic research and development activities. I develop prototypes and applications in Natural Language Processing, Machine Learning, Cyber Security, and Web applications using Python and its ecosystem. I am working as a faculty of Computer Science and run a start-up in cyber security. I am an active member of the PyCon India community and served as program committee lead for PyCon India 2021. I have presented approximately 80 talks, 20 Workshops, and 15 posters across the globe at prestigious conferences like PyData Global, PyCon APAC, PyCon AU, EuroPython, DjangoCon US and Europe, SciPy India, SciPy USA, PyCon USA, JuliaCon, FOSDEM, and several other Python and FOSS conferences. I have helped Python and FOSS Conferences by reviewing the talk and tutorial proposals, mentoring first-time speakers, participating in the discussions, and organizing the events.