Daniele Zago
Data Scientist

Currently working as a Data Scientist at OPTIT S.r.l., Bologna ๐Ÿ‡ฎ๐Ÿ‡น
Ph.D. in Statistical Sciences specializing in industrial statistics, online outlier detection, and stochastic optimization. I develop efficient algorithmic solutions and user-friendly applications for complex data-driven problems. I have experience in both statistical consulting, and software development.

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Education

University of Padova -- Statistical Sciences
2021 โ€” 2024   Doctor of Philosophy (Ph.D.)
2019 โ€” 2021   Master of Science (M.Sc.)
2016 โ€” 2019   Bachelor of Science (B.Sc.)

Experience

Experienced in designing advanced statistical algorithms, specializing in real-time outlier detection and stochastic optimization.
Proven ability to deliver data-driven solutions in consulting projects, translating technical requirements into actionable strategies, and consistently meeting client expectations.

Publications

Monitoring of complex geometrical shapes

I developed an innovative statistical quality control method for detecting shape defects in complex geometries obtained via additive manufacturing. I introduced a novel nonparametric control chart based on kurtosis analysis which provides superior defect detection for 3D-printed objects compared to existing approaches. A paper detailing the methodology has been submitted for review.

A software for modern statistical process monitoring

I developed a Julia package for real-time statistical process monitoring, integrating advanced algorithms and control charts to handle complex data types, such as sequential data, functional data, and structured observations. A paper that accompanies the package has been published in the Journal of Statistical Software.

Journal article   Source code  

A doubly-stochastic constrained optimization algorithm

I designed a novel stochastic optimization algorithm with stochastic constraints, aimed at optimizing control chart tuning parameters with greater efficiency compared to traditional numerical methods. This innovative approach has been published in the Journal of Quality Technology.

Journal article  

An improved bisection-type algorithm for control chart calibration

I developed a modified bisection algorithm for computing control limits in complex settings where standard methods are inefficient. The approach removes the need for a predefined search range and scales efficiently to multi-chart scenarios. The method has been published in Statistics and Computing.

Journal article  

A General Framework for Monitoring Mixed Data

I developed a general methodology to monitor processes involving mixed-type data (continuous, ordinal, categorical), common in real-world applications. The method enables effective sequential monitoring under serial correlation and has been published in the Journal of Quality Technology.

Journal article  

Alternative parameter learning schemes for monitoring process stability

I formalized the theoretical behavior of parameter learning schemes in relation to outlier detection performance in control charts. This work enabled the generalization of alternative parameter learning methods, leading to a more efficient and accurate detection scheme compared to traditional approaches. This work has been published in Quality Engineering.

Journal article