Search Results for author: Sven Weinzierl

Found 7 papers, 5 papers with code

Guiding Text-to-Text Privatization by Syntax

no code implementations2 Jun 2023 Stefan Arnold, Dilara Yesilbas, Sven Weinzierl

Lacking the capability to produce surrogate texts that correlate with the structure of the sensitive texts, we encompass our analysis by transforming the privatization step into a candidate selection problem in which substitutions are directed to words with matching grammatical properties.

Driving Context into Text-to-Text Privatization

no code implementations2 Jun 2023 Stefan Arnold, Dilara Yesilbas, Sven Weinzierl

\textit{Metric Differential Privacy} enables text-to-text privatization by adding calibrated noise to the vector of a word derived from an embedding space and projecting this noisy vector back to a discrete vocabulary using a nearest neighbor search.

Word Sense Disambiguation

GAM(e) changer or not? An evaluation of interpretable machine learning models based on additive model constraints

2 code implementations19 Apr 2022 Patrick Zschech, Sven Weinzierl, Nico Hambauer, Sandra Zilker, Mathias Kraus

The number of information systems (IS) studies dealing with explainable artificial intelligence (XAI) is currently exploding as the field demands more transparency about the internal decision logic of machine learning (ML) models.

Additive models Explainable artificial intelligence +2

Time Matters: Time-Aware LSTMs for Predictive Business Process Monitoring

1 code implementation2 Oct 2020 An Nguyen, Srijeet Chatterjee, Sven Weinzierl, Leo Schwinn, Martin Matzner, Bjoern Eskofier

To better model the time dependencies between events, we propose a new PBPM technique based on time-aware LSTM (T-LSTM) cells.

Prescriptive Business Process Monitoring for Recommending Next Best Actions

1 code implementation19 Aug 2020 Sven Weinzierl, Sebastian Dunzer, Sandra Zilker, Martin Matzner

We present a PrBPM technique that transforms the next most likely activities into the next best actions regarding a given KPI.

Activity Prediction

XNAP: Making LSTM-based Next Activity Predictions Explainable by Using LRP

1 code implementation18 Aug 2020 Sven Weinzierl, Sandra Zilker, Jens Brunk, Kate Revoredo, Martin Matzner, Jörg Becker

PBPM techniques aim to improve process performance by providing predictions to process analysts, supporting them in their decision making.

Activity Prediction Decision Making +1

A Technique for Determining Relevance Scores of Process Activities using Graph-based Neural Networks

1 code implementation7 Aug 2020 Matthias Stierle, Sven Weinzierl, Maximilian Harl, Martin Matzner

Through annotations with metrics such as the frequency or duration of activities, these models provide generic information to the process analyst.

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