Search Results for author: Daniel Kessler

Found 7 papers, 2 papers with code

It’s quality and quantity: the effect of the amount of comments on online suicidal posts

no code implementations EMNLP (CINLP) 2021 Daniel Low, Kelly Zuromski, Daniel Kessler, Satrajit S. Ghosh, Matthew K. Nock, Walter Dempsey

We use propensity score stratification, a causal inference method for observational data, and estimate whether the amount of comments —as a measure of social support— increases or decreases the likelihood of posting again on SW. One hypothesis is that receiving more comments may decrease the likelihood of the user posting in SW in the future, either by reducing symptoms or because comments from untrained peers may be harmful.

Causal Inference

Approximate Post-Selective Inference for Regression with the Group LASSO

no code implementations31 Dec 2020 Snigdha Panigrahi, Peter W. MacDonald, Daniel Kessler

After selection with the Group LASSO (or generalized variants such as the overlapping, sparse, or standardized Group LASSO), inference for the selected parameters is unreliable in the absence of adjustments for selection bias.

regression Selection bias +1

Supervised PCA: A Multiobjective Approach

no code implementations10 Nov 2020 Alexander Ritchie, Laura Balzano, Daniel Kessler, Chandra S. Sripada, Clayton Scott

Methods for supervised principal component analysis (SPCA) aim to incorporate label information into principal component analysis (PCA), so that the extracted features are more useful for a prediction task of interest.

Graph-aware Modeling of Brain Connectivity Networks

no code implementations6 Mar 2019 Yura Kim, Daniel Kessler, Elizaveta Levina

One challenge in analyzing such data is that inference at the individual edge level is not particularly biologically meaningful; interpretation is more useful at the level of so-called functional regions, or groups of nodes and connections between them; this is often called "graph-aware" inference in the neuroimaging literature.

Network classification with applications to brain connectomics

1 code implementation27 Jan 2017 Jesús D. Arroyo-Relión, Daniel Kessler, Elizaveta Levina, Stephan F. Taylor

Our goal is to design a classification method that uses both the individual edge information and the network structure of the data in a computationally efficient way, and that can produce a parsimonious and interpretable representation of differences in brain connectivity patterns between classes.

General Classification Graph Classification

Disease Prediction based on Functional Connectomes using a Scalable and Spatially-Informed Support Vector Machine

no code implementations21 Oct 2013 Takanori Watanabe, Daniel Kessler, Clayton Scott, Michael Angstadt, Chandra Sripada

Using the fused Lasso or GraphNet regularizer with the hinge-loss leads to a structured sparse support vector machine (SVM) with embedded feature selection.

Data Augmentation Disease Prediction +1

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