David Kernert
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View article: TailorSQL: An NL2SQL System Tailored to Your Query Workload
TailorSQL: An NL2SQL System Tailored to Your Query Workload Open
NL2SQL (natural language to SQL) translates natural language questions into SQL queries, thereby making structured data accessible to non-technical users, serving as the foundation for intelligent data applications. State-of-the-art NL2SQL…
View article: Assaying Out-Of-Distribution Generalization in Transfer Learning
Assaying Out-Of-Distribution Generalization in Transfer Learning Open
Since out-of-distribution generalization is a generally ill-posed problem, various proxy targets (e.g., calibration, adversarial robustness, algorithmic corruptions, invariance across shifts) were studied across different research programs…
View article: Testing Granger Non-Causality in Panels with Cross-Sectional Dependencies
Testing Granger Non-Causality in Panels with Cross-Sectional Dependencies Open
This paper proposes a new approach for testing Granger non-causality on panel data. Instead of aggregating panel member statistics, we aggregate their corresponding p-values and show that the resulting p-value approximately bounds the type…
View article: Density-Aware Linear Algebra in a Column-Oriented In-Memory Database System
Density-Aware Linear Algebra in a Column-Oriented In-Memory Database System Open
Linear algebra operations appear in nearly every application in advanced analytics, machine learning, and of various science domains. Until today, many data analysts and scientists tend to use statistics software packages or hand-crafted s…
View article: Topology-aware optimization of big sparse matrices and matrix multiplications on main-memory systems
Topology-aware optimization of big sparse matrices and matrix multiplications on main-memory systems Open
Since data sizes of analytical applications are continuously growing, many data scientists are switching from customized micro-solutions to scalable alternatives, such as statistical and scientific databases. However, many algorithms in da…
View article: SpMacho - Optimizing Sparse Linear Algebra Expressions with Probabilistic Density Estimation
SpMacho - Optimizing Sparse Linear Algebra Expressions with Probabilistic Density Estimation Open
In the age of statistical and scientific databases, there is an emerging trend of integrating analytical algorithms into database systems. Many of these algorithms are based on linear algebra with large, sparse matrices. However, linear al…
View article: From Static to Agile - Interactive Particle Physics Analysis in the SAP HANA DB
From Static to Agile - Interactive Particle Physics Analysis in the SAP HANA DB Open
In order to confirm their theoretical assumptions, physicists employ Monte-Carlo generators to produce millions
of simulated particle collision events and compare them with the results of the detector experiments. The
traditional, st…