no code implementations • 28 Feb 2025 • Leonardo Berti, Flavio Giorgi, Gjergji Kasneci
The scaling of these models, accomplished by increasing the number of parameters and the magnitude of the training datasets, has been linked to various so-called emergent abilities that were previously unobserved.
1 code implementation • 12 Feb 2025 • Leonardo Berti, Gjergji Kasneci
Stock Price Trend Prediction (SPTP) based on Limit Order Book (LOB) data is a fundamental challenge in financial markets.
1 code implementation • 10 Dec 2024 • Shuo Yang, Bardh Prenkaj, Gjergji Kasneci
Compared with unsupervised SoTA models, RAZOR improves by 3. 5% on the FEVER and 6. 5% on MNLI and SNLI datasets according to the F1 score.
no code implementations • 3 Nov 2024 • Gjergji Kasneci, Enkelejda Kasneci
This study provides a structured approach to embedding-based feature enrichment and illustrates its benefits in ensemble learning for tabular data.
1 code implementation • 11 Sep 2024 • Alina Fastowski, Gjergji Kasneci
Our experiments reveal that an LLM's uncertainty can increase up to 56. 6% when the question is answered incorrectly due to the exposure to false information.
no code implementations • 26 Aug 2024 • Xuan Zhao, Klaus Broelemann, Salvatore Ruggieri, Gjergji Kasneci
We introduce an innovative approach to enhancing the empirical risk minimization (ERM) process in model training through a refined reweighting scheme of the training data to enhance fairness.
no code implementations • 12 Aug 2024 • Miriam Schirmer, Tobias Leemann, Gjergji Kasneci, Jürgen Pfeffer, David Jurgens
Psychological trauma can manifest following various distressing events and is captured in diverse online contexts.
no code implementations • 25 Jul 2024 • Jan Batzner, Volker Stocker, Stefan Schmid, Gjergji Kasneci
LLMs are changing the way humans create and interact with content, potentially affecting citizens' political opinions and voting decisions.
no code implementations • 17 Jun 2024 • Shuo Yang, Chenchen Yuan, Yao Rong, Felix Steinbauer, Gjergji Kasneci
A multitude of industries depend on accurate and reasonable tabular data augmentation for their business processes.
1 code implementation • 22 May 2024 • Tobias Leemann, Alina Fastowski, Felix Pfeiffer, Gjergji Kasneci
We address the critical challenge of applying feature attribution methods to the transformer architecture, which dominates current applications in natural language processing and beyond.
no code implementations • 15 Mar 2024 • Tobias Leemann, Martin Pawelczyk, Bardh Prenkaj, Gjergji Kasneci
We subsequently investigate how different components in the objective functions, e. g., the machine learning model or cost function used to measure distance, determine whether the outcome can be considered an adversarial example or not.
no code implementations • 28 Feb 2024 • Shuo Yang, Gjergji Kasneci
This research significantly reduces training costs of proximal policy-guided models and demonstrates the potential for self-correction of language models.
no code implementations • 1 Jan 2024 • Arne Bewersdorff, Christian Hartmann, Marie Hornberger, Kathrin Seßler, Maria Bannert, Enkelejda Kasneci, Gjergji Kasneci, Xiaoming Zhai, Claudia Nerdel
The integration of Artificial Intelligence (AI), particularly Large Language Model (LLM)-based systems, in education has shown promise in enhancing teaching and learning experiences.
no code implementations • 21 Nov 2023 • Xuan Zhao, Simone Fabbrizzi, Paula Reyero Lobo, Siamak Ghodsi, Klaus Broelemann, Steffen Staab, Gjergji Kasneci
To balance the data distribution between the majority and the minority groups, our approach deemphasizes samples from the majority group.
no code implementations • 17 Nov 2023 • Xuan Zhao, Klaus Broelemann, Salvatore Ruggieri, Gjergji Kasneci
The two neural networks can approximate the causal model of the data, and the causal model of interventions.
no code implementations • 14 Nov 2023 • Xuan Zhao, Klaus Broelemann, Gjergji Kasneci
In this paper, we introduce a novel method to generate CEs for a pre-trained regressor by first disentangling the label-relevant from the label-irrelevant dimensions in the latent space.
1 code implementation • 4 Aug 2023 • Bardh Prenkaj, Mario Villaizan-Vallelado, Tobias Leemann, Gjergji Kasneci
The GAEs minimise the reconstruction error between the original graph and its learned representation during training.
no code implementations • 25 Jul 2023 • Xuan Zhao, Klaus Broelemann, Gjergji Kasneci
In this paper, we introduce a new method to generate CEs for a pre-trained binary classifier by first shaping the latent space of an autoencoder to be a mixture of Gaussian distributions.
1 code implementation • NeurIPS 2023 • Tobias Leemann, Martin Pawelczyk, Gjergji Kasneci
In particular, we derive a parametric family of $f$-MIP guarantees that we refer to as $\mu$-Gaussian Membership Inference Privacy ($\mu$-GMIP) by theoretically analyzing likelihood ratio-based membership inference attacks on stochastic gradient descent (SGD).
no code implementations • 14 Mar 2023 • Carlos Mougan, Klaus Broelemann, David Masip, Gjergji Kasneci, Thanassis Thiropanis, Steffen Staab
Then, state-of-the-art techniques model input data distributions or model prediction distributions and try to understand issues regarding the interactions between learned models and shifting distributions.
no code implementations • 23 Dec 2022 • Vadim Borisov, Gjergji Kasneci
The majority of existing post-hoc explanation approaches for machine learning models produce independent, per-variable feature attribution scores, ignoring a critical inherent characteristics of homogeneously structured data, such as visual or text data: there exist latent inter-variable relationships between features.
no code implementations • 17 Nov 2022 • Hamed Jalali, Gjergji Kasneci
Ensemble methods aggregate models' predictions by assuming a perfect diversity of local predictors.
no code implementations • 3 Nov 2022 • Martin Pawelczyk, Lea Tiyavorabun, Gjergji Kasneci
In this work, we develop \texttt{DEAR} (DisEntangling Algorithmic Recourse), a novel and practical recourse framework that bridges the gap between the IMF and the strong causal assumptions.
1 code implementation • 25 Oct 2022 • Tobias Leemann, Martin Pawelczyk, Christian Thomas Eberle, Gjergji Kasneci
In this work, we show that the decision not to share data can be considered as information in itself that should be protected to respect users' privacy.
no code implementations • 22 Oct 2022 • Carlos Mougan, Klaus Broelemann, Gjergji Kasneci, Thanassis Tiropanis, Steffen Staab
We provide a mathematical analysis of different types of distribution shifts as well as synthetic experimental examples.
1 code implementation • 20 Oct 2022 • Yao Rong, Tobias Leemann, Thai-trang Nguyen, Lisa Fiedler, Peizhu Qian, Vaibhav Unhelkar, Tina Seidel, Gjergji Kasneci, Enkelejda Kasneci
A better understanding of the needs of XAI users, as well as human-centered evaluations of explainable models are both a necessity and a challenge.
Explainable Artificial Intelligence (XAI)
Explainable Models
+3
1 code implementation • 12 Oct 2022 • Vadim Borisov, Kathrin Seßler, Tobias Leemann, Martin Pawelczyk, Gjergji Kasneci
Tabular data is among the oldest and most ubiquitous forms of data.
Ranked #1 on
Tabular Data Generation
on HELOC
1 code implementation • 6 Sep 2022 • Johannes Haug, Alexander Braun, Stefan Zürn, Gjergji Kasneci
In particular, we show that local attributions can become obsolete each time the predictive model is updated or concept drift alters the data generating distribution.
no code implementations • 30 Aug 2022 • Martin Pawelczyk, Tobias Leemann, Asia Biega, Gjergji Kasneci
Thus, our work raises fundamental questions about the compatibility of "the right to an actionable explanation" in the context of the "right to be forgotten", while also providing constructive insights on the determining factors of recourse robustness.
1 code implementation • 5 Aug 2022 • Michael Gröger, Vadim Borisov, Gjergji Kasneci
One of the core challenges facing the medical image computing community is fast and efficient data sample labeling.
1 code implementation • 28 Jun 2022 • Tobias Leemann, Michael Kirchhof, Yao Rong, Enkelejda Kasneci, Gjergji Kasneci
Interest in understanding and factorizing learned embedding spaces through conceptual explanations is steadily growing.
1 code implementation • 28 Apr 2022 • Johannes Haug, Effi Tramountani, Gjergji Kasneci
In this sense, we hope that our work will contribute to more standardized, reliable and realistic testing and comparison of online machine learning methods.
1 code implementation • 30 Mar 2022 • Johannes Haug, Klaus Broelemann, Gjergji Kasneci
Dynamic Model Trees are thus a powerful online learning framework that contributes to more lightweight and interpretable machine learning in data streams.
1 code implementation • 13 Mar 2022 • Martin Pawelczyk, Teresa Datta, Johannes van-den-Heuvel, Gjergji Kasneci, Himabindu Lakkaraju
To this end, we propose a novel objective function which simultaneously minimizes the gap between the achieved (resulting) and desired recourse invalidation rates, minimizes recourse costs, and also ensures that the resulting recourse achieves a positive model prediction.
no code implementations • 7 Feb 2022 • Hamed Jalali, Gjergji Kasneci
Distributed Gaussian process (DGP) is a popular approach to scale GP to big data which divides the training data into some subsets, performs local inference for each partition, and aggregates the results to acquire global prediction.
1 code implementation • 1 Feb 2022 • Yao Rong, Tobias Leemann, Vadim Borisov, Gjergji Kasneci, Enkelejda Kasneci
With a variety of local feature attribution methods being proposed in recent years, follow-up work suggested several evaluation strategies.
1 code implementation • 14 Nov 2021 • Vadim Borisov, Johannes Meier, Johan van den Heuvel, Hamed Jalali, Gjergji Kasneci
Understanding the results of deep neural networks is an essential step towards wider acceptance of deep learning algorithms.
2 code implementations • 5 Oct 2021 • Vadim Borisov, Tobias Leemann, Kathrin Seßler, Johannes Haug, Martin Pawelczyk, Gjergji Kasneci
Moreover, we discuss deep learning approaches for generating tabular data, and we also provide an overview over strategies for explaining deep models on tabular data.
4 code implementations • 2 Aug 2021 • Martin Pawelczyk, Sascha Bielawski, Johannes van den Heuvel, Tobias Richter, Gjergji Kasneci
In summary, our work provides the following contributions: (i) an extensive benchmark of 11 popular counterfactual explanation methods, (ii) a benchmarking framework for research on future counterfactual explanation methods, and (iii) a standardized set of integrated evaluation measures and data sets for transparent and extensive comparisons of these methods.
no code implementations • 3 Feb 2021 • Wolfgang Fuhl, Gjergji Kasneci, Enkelejda Kasneci
The data set includes 2D and 3D landmarks, semantic segmentation, 3D eyeball annotation and the gaze vector and eye movement types for all images.
no code implementations • 2 Feb 2021 • Hamed Jalali, Martin Pawelczyk, Gjergji Kasneci
Imposing the \emph{conditional independence assumption} (CI) between the experts renders the aggregation of different expert predictions time efficient at the cost of poor uncertainty quantification.
1 code implementation • 4 Jan 2021 • Johannes Haug, Stefan Zürn, Peter El-Jiz, Gjergji Kasneci
Our experimental study illustrates the sensitivity of popular attribution models to the baseline, thus laying the foundation for a more in-depth discussion on sensible baseline methods for tabular data.
no code implementations • 29 Oct 2020 • Nikolaos Nikolaou, Ingo P. Waldmann, Angelos Tsiaras, Mario Morvan, Billy Edwards, Kai Hou Yip, Giovanna Tinetti, Subhajit Sarkar, James M. Dawson, Vadim Borisov, Gjergji Kasneci, Matej Petkovic, Tomaz Stepisnik, Tarek Al-Ubaidi, Rachel Louise Bailey, Michael Granitzer, Sahib Julka, Roman Kern, Patrick Ofner, Stefan Wagner, Lukas Heppe, Mirko Bunse, Katharina Morik
For instance, the most prolific method for detecting exoplanets and inferring several of their characteristics, transit photometry, is very sensitive to the presence of stellar spots.
2 code implementations • 19 Oct 2020 • Johannes Haug, Gjergji Kasneci
By treating the parameters of a predictive model as random variables, we show that concept drift corresponds to a change in the distribution of optimal parameters.
no code implementations • 17 Oct 2020 • Hamed Jalali, Gjergji Kasneci
The precision matrix encodes conditional dependencies between experts and is used to detect strongly dependent experts and construct an improved aggregation.
no code implementations • 23 Jun 2020 • Martin Pawelczyk, Klaus Broelemann, Gjergji Kasneci
In this work, we derive a general upper bound for the costs of counterfactual explanations under predictive multiplicity.
1 code implementation • 18 Jun 2020 • Johannes Haug, Martin Pawelczyk, Klaus Broelemann, Gjergji Kasneci
Feature selection can be a crucial factor in obtaining robust and accurate predictions.
3 code implementations • 21 Oct 2019 • Martin Pawelczyk, Johannes Haug, Klaus Broelemann, Gjergji Kasneci
On one hand, we suggest to complement the catalogue of counterfactual quality measures [1] using a criterion to quantify the degree of difficulty for a certain counterfactual suggestion.
no code implementations • 24 May 2019 • Wolfgang Fuhl, Gjergji Kasneci, Wolfgang Rosenstiel, Enkelejda Kasneci
Our approach reduces the complexity of convolutions by replacing it with binary decisions.
no code implementations • 25 Sep 2018 • Klaus Broelemann, Gjergji Kasneci
We propose shallow model trees as a way to combine simple and highly transparent predictive models for higher predictive power without losing the transparency of the original models.
no code implementations • 27 Jul 2018 • Klaus Broelemann, Gjergji Kasneci
Latent truth discovery, LTD for short, refers to the problem of aggregating ltiple claims from various sources in order to estimate the plausibility of atements about entities.
no code implementations • 31 Dec 2017 • Klaus Broelemann, Thomas Gottron, Gjergji Kasneci
Despite a multitude of algorithms to address the LTD problem that can be found in literature, only little is known about their overall performance with respect to effectiveness (in terms of truth discovery capabilities), efficiency and robustness.
no code implementations • 30 Oct 2017 • Wolfgang Fuhl, Thiago Santini, Gjergji Kasneci, Wolfgang Rosenstiel, Enkelejda Kasneci
Real-time, accurate, and robust pupil detection is an essential prerequisite for pervasive video-based eye-tracking.
no code implementations • 19 Jan 2016 • Wolfgang Fuhl, Thiago Santini, Gjergji Kasneci, Enkelejda Kasneci
Real-time, accurate, and robust pupil detection is an essential prerequisite for pervasive video-based eye-tracking.
1 code implementation • 19 Jul 2012 • Simon Lacoste-Julien, Konstantina Palla, Alex Davies, Gjergji Kasneci, Thore Graepel, Zoubin Ghahramani
The Internet has enabled the creation of a growing number of large-scale knowledge bases in a variety of domains containing complementary information.