The Navigator highlights current ACT research by exploring topics at the intersection of EdTech, measurement, psychometric research, and learning.
NLP, GPT2 and Sphinx
How is ACT using NLP and GPT2 for Sphinx and other automatic content generation?
In this episode of the Navigator podcast, we discuss Natural Language Processing with Yuchi Huang, a Senior Manager in the Artificial Intelligence and Machine Learning team at ACTNext. Yuchi takes us through some of the pitfalls and practices of using machine learning for text content analysis and generation.
A transcript is available at: https://actnext.org/research-and-projects/podcast-ep-11-nlp-gpt2-sphinx/
The views and opinions expressed in this podcast are those of the authors only and do not necessarily reflect the official policy or position of ACT, Inc.
Talking AI/ML and Deep Learning
In this episode of the Navigator podcast, we discuss some of the artificial intelligence (AI) timeline, past, present and future, with Saad Khan , director of AI and machine learning for ACTNext. We'll learn how Saad's AI/ML team is using deep learning to create new tools for measurement and learning.
A transcript is available at: https://actnext.org/research-and-projects/podcast-ep10-aiml-saad-khan/
What is learning?
In this podcast, we talk about learning with Dr. Vanessa Simmering. She's a Senior Research Scientist in Learning Solutions and studies learning and development.
In this interview, we talk about babies learning to crawl, walk, and run. We also discuss the Stroop Color and Word Test (try it here), crystallized versus fluid intelligence, and the dynamic systems theory of learning.
The Wiring of Intelligence
In this interview, Gunter Maris explains the theory behind The Wiring of Intelligence, a network model of learning.
Maris describes the actions of a “crazy electrician” who wires the connections in our brains. The network theory of intelligence developed by Maris (with colleagues Alexander Savi, Maarten Marsman, and Han van der Maas) is based on the idea of a house with interconnected electrical sockets in every room that represent synaptic knowledge.
Creating Test Items with Automated Item Generation (AIG)
In this episode of ACTNext Navigator podcast, we discuss some of the history of AIG at ACT and a couple new devices: AIG for assessing graphic literacy (AIGL) and passage organizing and extraction (POE). Guests: Rick Meisner, Ian MacMillan, Brad Bolender.
Explaining the Grade: Auto Essay Scoring and CRASE+
In this episode of ACTNext Navigator podcast, we’ll go under the hood of ACT's automated essay scoring engine, CRASE+.
Our guests are Erin Yao and Scott Wood. CRASE+ is a writing assessment tool that begins with human graders to develop a rubric. Data from human graders is used to train the automatic grading on a large scale.
We discuss CRASE+, automated scoring, the challenges of automated scoring using natural language processing, and how to address the biases in human graders.