Search Results for author: Ira Assent

Found 19 papers, 11 papers with code

RainAI -- Precipitation Nowcasting from Satellite Data

1 code implementation30 Nov 2023 Rafael Pablos Sarabia, Joachim Nyborg, Morten Birk, Ira Assent

This paper presents a solution to the Weather4Cast 2023 competition, where the goal is to forecast high-resolution precipitation with an 8-hour lead time using lower-resolution satellite radiance images.

ActUp: Analyzing and Consolidating tSNE and UMAP

1 code implementation12 May 2023 Andrew Draganov, Jakob Rødsgaard Jørgensen, Katrine Scheel Nellemann, Davide Mottin, Ira Assent, Tyrus Berry, Cigdem Aslay

tSNE and UMAP are popular dimensionality reduction algorithms due to their speed and interpretable low-dimensional embeddings.

Dimensionality Reduction

Generalized Classification of Satellite Image Time Series with Thermal Positional Encoding

1 code implementation17 Mar 2022 Joachim Nyborg, Charlotte Pelletier, Ira Assent

Unlike previous positional encoding based on calendar time (e. g. day-of-year), TPE is based on thermal time, which is obtained by accumulating daily average temperatures over the growing season.

Crop Classification Time Series +1

Weakly-Supervised Cloud Detection with Fixed-Point GANs

1 code implementation23 Nov 2021 Joachim Nyborg, Ira Assent

Convolutional neural networks (CNNs) have greatly advanced the state-of-the-art in the detection of clouds in satellite images, but existing CNN-based methods are costly as they require large amounts of training images with expensive pixel-level cloud labels.

Cloud Detection Translation

TimeMatch: Unsupervised Cross-Region Adaptation by Temporal Shift Estimation

1 code implementation4 Nov 2021 Joachim Nyborg, Charlotte Pelletier, Sébastien Lefèvre, Ira Assent

However, when applied to target regions spatially different from the training region, these models perform poorly without any target labels due to the temporal shift of crop phenology between regions.

Crop Classification Time Series +2

On Quantitative Evaluations of Counterfactuals

1 code implementation30 Oct 2021 Frederik Hvilshøj, Alexandros Iosifidis, Ira Assent

As counterfactual examples become increasingly popular for explaining decisions of deep learning models, it is essential to understand what properties quantitative evaluation metrics do capture and equally important what they do not capture.

counterfactual

Learning by Design: Structuring and Documenting the Human Choices in Machine Learning Development

no code implementations3 May 2021 Simon Enni, Ira Assent

The influence of machine learning (ML) is quickly spreading, and a number of recent technological innovations have applied ML as a central technology.

BIG-bench Machine Learning

ECINN: Efficient Counterfactuals from Invertible Neural Networks

1 code implementation25 Mar 2021 Frederik Hvilshøj, Alexandros Iosifidis, Ira Assent

Counterfactual examples identify how inputs can be altered to change the predicted class of a classifier, thus opening up the black-box nature of, e. g., deep neural networks.

counterfactual Image Classification

Accelerated High-Quality Mutual-Information Based Word Clustering

1 code implementation LREC 2020 Manuel R. Ciosici, Ira Assent, Leon Derczynski

We present efficient implementations of Brown clustering and the alternative Exchange clustering as well as a number of methods to accelerate the computation of both hierarchical and flat clusters.

Clustering Vocal Bursts Intensity Prediction

A Real-World Data Resource of Complex Sensitive Sentences Based on Documents from the Monsanto Trial

no code implementations LREC 2020 Jan Neerbek, Morten Eskildsen, Peter Dolog, Ira Assent

In this work we present a corpus for the evaluation of sensitive information detection approaches that addresses the need for real world sensitive information for empirical studies.

Sentence

Active Learning of SVDD Hyperparameter Values

no code implementations4 Dec 2019 Holger Trittenbach, Klemens Böhm, Ira Assent

Existing methods to estimate hyperparameter values are purely heuristic, and the conditions under which they work well are unclear.

Active Learning Outlier Detection

Abbreviation Explorer - an interactive system for pre-evaluation of Unsupervised Abbreviation Disambiguation

no code implementations NAACL 2019 Manuel R. Ciosici, Ira Assent

We present Abbreviation Explorer, a system that supports interactive exploration of abbreviations that are challenging for Unsupervised Abbreviation Disambiguation (UAD).

Quantifying the morphosyntactic content of Brown Clusters

no code implementations NAACL 2019 Manuel R. Ciosici, Leon Derczynski, Ira Assent

We show that increases in Average Mutual Information, the clustering algorithms{'} optimization goal, are highly correlated with improvements in encoding of morphosyntactic information.

Clustering

Unsupervised Abbreviation Disambiguation Contextual disambiguation using word embeddings

no code implementations1 Apr 2019 Manuel Ciosici, Tobias Sommer, Ira Assent

In this paper, we present an entirely unsupervised abbreviation disambiguation method (called UAD) that picks up abbreviation definitions from unstructured text.

Question Answering Reading Comprehension +1

Learning Representations for Outlier Detection on a Budget

no code implementations29 Jul 2015 Barbora Micenková, Brian McWilliams, Ira Assent

We demonstrate the good performance of BORE compared to a variety of competing methods in the non-budgeted and the budgeted outlier detection problem on 12 real-world datasets.

Fraud Detection Outlier Detection

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