UPDATED publication list

content/publications/pub12.md

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+title = 'Ensemble and Self-supervised Learning for Improved Classification of Seismic Signals from the Åknes Rockslope (2022)'
+date = 2022-10-15T19:17:52+01:00
+draft = false
+tags = ["classification","timeseries", "seismic", "CNN"]
+
+categories = ["Daesoo Lee", "Erlend Aune", "Nadège Langet", "Jo Eidsvik" ] # Lead text
+description =  "Example article description"
+lead = "Mathematical Geosciences"
+thumbnail = "images/seismic.jpeg"
+post_meta = ["categories", "translations"]
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+
+## Abstract
+A case study with seismic geophone data from the unstable Åknes rock slope in Norway is considered. This rock slope is monitored because there is a risk of severe flooding if the massive-size rock falls into the fjord. The geophone data is highly valuable because it provides 1000 Hz sampling rates data which are streamed to a web resource for real-time analysis. The focus here is on building a classifier for these data to distinguish different types of microseismic events which are in turn indicative of the various processes occurring on the slope. There are 24 time series from eight 3-component geophone data for about 3500 events in total, and each of the event time series has a length of 16 s. For the classification task, novel machine learning methods such as deep convolutional neural networks are leveraged. Ensemble prediction is used to extract information from all time series, and this is seen to give large improvements compared with doing immediate aggregation of the data. Further, self-supervised learning is evaluated to give added value here, in particular for the case with very limited training data.
+
+[[paper](https://link.springer.com/article/10.1007/s11004-022-10037-7)]
+[[arXiv]()]
+[[github]()]

content/publications/pub13.md

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+title = 'Latent Diffusion Model for Conditional Reservoir Facies Generation (2023)'
+date = 2023-11-15T19:17:52+01:00
+draft = false
+tags = ["Diffusion Model", "Geophysics"]
+
+categories = ["Daesoo Lee", "Oscar Ovanger", "Jo Eidsvik", "Erlend Aune", "Jacob Skauvold", "Ragnar Hauge"] # Lead text
+description =  "Example article description"
+lead = "Mathematical Geosciences"
+thumbnail = "images/seismicarxiv.png"
+post_meta = ["categories", "translations"]
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+
+## Abstract
+Creating accurate and geologically realistic reservoir facies based on limited measurements is crucial for field development and reservoir management, especially in the oil and gas sector. Traditional two-point geostatistics, while foundational, often struggle to capture complex geological patterns. Multi-point statistics offers more flexibility, but comes with its own challenges. With the rise of Generative Adversarial Networks (GANs) and their success in various fields, there has been a shift towards using them for facies generation. However, recent advances in the computer vision domain have shown the superiority of diffusion models over GANs. Motivated by this, a novel Latent Diffusion Model is proposed, which is specifically designed for conditional generation of reservoir facies. The proposed model produces high-fidelity facies realizations that rigorously preserve conditioning data. It significantly outperforms a GAN-based alternative.
+
+[[paper](https://arxiv.org/abs/2311.01968)]
+[[arXiv]()]
+[[github]()]