Search Results for author: Stefan Grafberger

Found 2 papers, 1 papers with code

Towards Interactively Improving ML Data Preparation Code via "Shadow Pipelines"

no code implementations30 Apr 2024 Stefan Grafberger, Paul Groth, Sebastian Schelter

Data scientists develop ML pipelines in an iterative manner: they repeatedly screen a pipeline for potential issues, debug it, and then revise and improve its code according to their findings.

Improving Retrieval-Augmented Large Language Models via Data Importance Learning

1 code implementation6 Jul 2023 Xiaozhong Lyu, Stefan Grafberger, Samantha Biegel, Shaopeng Wei, Meng Cao, Sebastian Schelter, Ce Zhang

There are exponentially many terms in the multilinear extension, and one key contribution of this paper is a polynomial time algorithm that computes exactly, given a retrieval-augmented model with an additive utility function and a validation set, the data importance of data points in the retrieval corpus using the multilinear extension of the model's utility function.

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