• A volume-conserving representation of cell faces in corner point grids 

  Røe, Per; Hauge, Ragnar (Journal article; Peer reviewed, 2015)

  Corner point grids is currently the standard grid representation for use in reservoir simulation. The cell faces in corner point grids are traditionally represented as bilinear surfaces where the edges between the corner ...

• User Interaction Data in Apps: Comparing Policy Claims to Implementations 

  Tang, Feiyang; Østvold, Bjarte Mayanja (Journal article; Peer reviewed, 2024)

  As mobile app usage continues to rise, so does the generation of extensive user interaction data, which includes actions such as swiping, zooming, or the time spent on a screen. Apps often collect a large amount of this ...

• MCCE: Monte Carlo sampling of valid and realistic counterfactual explanations for tabular data 

  Redelmeier, Annabelle Alice; Jullum, Martin; Aas, Kjersti; Løland, Anders (Journal article; Peer reviewed, 2024)

  We introduce MCCE: Monte Carlo sampling of valid and realistic Counterfactual Explanations for tabular data, a novel counterfactual explanation method that generates on-manifold, actionable and valid counterfactuals by ...

• Statistical Embedding: Beyond Principal Components 

  Tjøstheim, Dag Bjarne; Jullum, Martin; Løland, Anders (Journal article; Peer reviewed, 2023)

  There has been an intense recent activity in embedding of very high-dimensional and nonlinear data structures, much of it in the data science and machine learning literature. We survey this activity in four parts. In the ...

• Some recent trends in embeddings of time series and dynamic networks 

  Tjøstheim, Dag Bjarne; Jullum, Martin; Løland, Anders (Journal article; Peer reviewed, 2023)

  We give a review of some recent developments in embeddings of time series and dynamic networks. We start out with traditional principal components and then look at extensions to dynamic factor models for time series. Unlike ...

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