Fine-grained Geolocation Prediction of Tweets with Human Machine Collaboration

no code implementations • 25 Jun 2021 • Florina Dutt, Subhajit Das

Twitter is a useful resource to analyze peoples' opinions on various topics.

CACTUS: Detecting and Resolving Conflicts in Objective Functions

no code implementations • 13 Mar 2021 • Subhajit Das, Alex Endert

Furthermore, we demonstrate our approach in a VA system that helps users in specifying meaningful objective functions to a classifier by detecting and resolving conflicting objectives and constraints.

CAVA: A Visual Analytics System for Exploratory Columnar Data Augmentation Using Knowledge Graphs

1 code implementation • 7 Sep 2020 • Dylan Cashman, Shenyu Xu, Subhajit Das, Florian Heimerl, Cong Liu, Shah Rukh Humayoun, Michael Gleicher, Alex Endert, Remco Chang

In this paper, we present CAVA, a system that integrates data curation and data augmentation with the traditional data exploration and analysis tasks, enabling information foraging in-situ during analysis.

Data Augmentation Knowledge Graphs

A User-based Visual Analytics Workflow for Exploratory Model Analysis

no code implementations • 27 Sep 2018 • Dylan Cashman, Shah Rukh Humayoun, Florian Heimerl, Kendall Park, Subhajit Das, John Thompson, Bahador Saket, Abigail Mosca, John Stasko, Alex Endert, Michael Gleicher, Remco Chang

We found that our system workflow enabled users to generate complex models, to assess them for various qualities, and to select the most relevant model for their task.

AutoML Model Selection