Search Results for author: Helge Langseth

Found 17 papers, 7 papers with code

Probing the Robustness of Time-series Forecasting Models with CounterfacTS

1 code implementation6 Mar 2024 Håkon Hanisch Kjærnli, Lluis Mas-Ribas, Aida Ashrafi, Gleb Sizov, Helge Langseth, Odd Erik Gundersen

Because most of the training data does not reflect such changes, the models present poor performance on the new out-of-distribution scenarios and, therefore, the impact of such events cannot be reliably anticipated ahead of time.

Time Series Time Series Forecasting

Lecture Notes in Probabilistic Diffusion Models

no code implementations16 Dec 2023 Inga Strümke, Helge Langseth

The diffusion model learns the data manifold to which the original and thus the reconstructed data samples belong, by training on a large number of data points.

Providing Previously Unseen Users Fair Recommendations Using Variational Autoencoders

1 code implementation29 Aug 2023 Bjørnar Vassøy, Helge Langseth, Benjamin Kille

An emerging definition of fairness in machine learning requires that models are oblivious to demographic user information, e. g., a user's gender or age should not influence the model.

Fairness Recommendation Systems

Consumer-side Fairness in Recommender Systems: A Systematic Survey of Methods and Evaluation

no code implementations16 May 2023 Bjørnar Vassøy, Helge Langseth

In the current landscape of ever-increasing levels of digitalization, we are facing major challenges pertaining to scalability.

Fairness Marketing +2

A data-driven modular architecture with denoising autoencoders for health indicator construction in a manufacturing process

no code implementations10 Aug 2022 Emil Blixt Hansen, Helge Langseth, Nadeem Iftikhar, Simon Bøgh

With ModularHI, the operator chooses which sensor inputs are available, and then ModularHI will compute a baseline model based on data collected during a burn-in state.

Denoising Management

Correcting Classification: A Bayesian Framework Using Explanation Feedback to Improve Classification Abilities

no code implementations29 Apr 2021 Yanzhe Bekkemoen, Helge Langseth

Several explanation methods have been developed, but they do not provide mechanisms for users to interact with the explanations.

Classification General Classification

Prediction Intervals: Split Normal Mixture from Quality-Driven Deep Ensembles

1 code implementation19 Jul 2020 Tárik S. Salem, Helge Langseth, Heri Ramampiaro

The ensembled prediction intervals are aggregated as a split normal mixture accounting for possible multimodality and asymmetricity of the posterior predictive distribution, and resulting in prediction intervals that capture aleatoric and epistemic uncertainty.

Prediction Intervals

Learning similarity measures from data

no code implementations15 Jan 2020 Bjørn Magnus Mathisen, Agnar Aamodt, Kerstin Bach, Helge Langseth

The main motivation for this work is to automate the construction of similarity measures using machine learning, while keeping training time as low as possible.

BIG-bench Machine Learning Clustering +1

Probabilistic Models with Deep Neural Networks

2 code implementations9 Aug 2019 Andrés R. Masegosa, Rafael Cabañas, Helge Langseth, Thomas D. Nielsen, Antonio Salmerón

Recent advances in statistical inference have significantly expanded the toolbox of probabilistic modeling.

Variational Inference

Forecasting Intra-Hour Imbalances in Electric Power Systems

no code implementations1 Feb 2019 Tárik S. Salem, Karan Kathuria, Heri Ramampiaro, Helge Langseth

Keeping the electricity production in balance with the actual demand is becoming a difficult and expensive task in spite of an involvement of experienced human operators.

Securing Tag-based recommender systems against profile injection attacks: A comparative study. (Extended Report)

no code implementations24 Jan 2019 Georgios K. Pitsilis, Heri Ramampiaro, Helge Langseth

This work addresses the challenges related to attacks on collaborative tagging systems, which often comes in a form of malicious annotations or profile injection attacks.

Recommendation Systems TAG

Detecting Offensive Language in Tweets Using Deep Learning

1 code implementation13 Jan 2018 Georgios K. Pitsilis, Heri Ramampiaro, Helge Langseth

This paper addresses the important problem of discerning hateful content in social media.

16k Abuse Detection +1

A Deep Network Model for Paraphrase Detection in Short Text Messages

no code implementations7 Dec 2017 Basant Agarwal, Heri Ramampiaro, Helge Langseth, Massimiliano Ruocco

Our experimental results show that the proposed approach outperforms existing state-of-the-art approaches on user-generated noisy social media data, such as Twitter texts, and achieves highly competitive performance on a cleaner corpus.

Question Answering Sentence +1

Inter-Session Modeling for Session-Based Recommendation

1 code implementation22 Jun 2017 Massimiliano Ruocco, Ole Steinar Lillestøl Skrede, Helge Langseth

In recent years, research has been done on applying Recurrent Neural Networks (RNNs) as recommender systems.

Session-Based Recommendations

Cannot find the paper you are looking for? You can Submit a new open access paper.