Search Results for author: Alexander Scarlatos

Found 7 papers, 5 papers with code

Exploring Automated Distractor Generation for Math Multiple-choice Questions via Large Language Models

1 code implementation2 Apr 2024 Wanyong Feng, Jaewook Lee, Hunter McNichols, Alexander Scarlatos, Digory Smith, Simon Woodhead, Nancy Otero Ornelas, Andrew Lan

Multiple-choice questions (MCQs) are ubiquitous in almost all levels of education since they are easy to administer, grade, and are a reliable format in assessments and practices.

Distractor Generation In-Context Learning +6

SyllabusQA: A Course Logistics Question Answering Dataset

no code implementations3 Mar 2024 Nigel Fernandez, Alexander Scarlatos, Andrew Lan

Automated teaching assistants and chatbots have significant potential to reduce the workload of human instructors, especially for logistics-related question answering, which is important to students yet repetitive for instructors.

Language Modelling Large Language Model +2

Improving the Validity of Automatically Generated Feedback via Reinforcement Learning

1 code implementation2 Mar 2024 Alexander Scarlatos, Digory Smith, Simon Woodhead, Andrew Lan

Second, we propose a framework for feedback generation that optimizes both correctness and alignment using reinforcement learning (RL).

Math Misconceptions +3

Automated Distractor and Feedback Generation for Math Multiple-choice Questions via In-context Learning

no code implementations7 Aug 2023 Hunter McNichols, Wanyong Feng, Jaewook Lee, Alexander Scarlatos, Digory Smith, Simon Woodhead, Andrew Lan

Multiple-choice questions (MCQs) are ubiquitous in almost all levels of education since they are easy to administer, grade, and are a reliable form of assessment.

In-Context Learning Math +2

RetICL: Sequential Retrieval of In-Context Examples with Reinforcement Learning

1 code implementation23 May 2023 Alexander Scarlatos, Andrew Lan

Recent developments in large pre-trained language models have enabled unprecedented performance on a variety of downstream tasks.

In-Context Learning Language Modelling +6

Tree-Based Representation and Generation of Natural and Mathematical Language

1 code implementation15 Feb 2023 Alexander Scarlatos, Andrew Lan

In this paper, we propose a series of modifications to existing language models to jointly represent and generate text and math: representing mathematical expressions as sequences of node tokens in their operator tree format, using math symbol and tree position embeddings to preserve the semantic and structural properties of mathematical expressions, and using a constrained decoding method to generate mathematically valid expressions.

Math Mathematical Reasoning +1

Process-BERT: A Framework for Representation Learning on Educational Process Data

1 code implementation28 Apr 2022 Alexander Scarlatos, Christopher Brinton, Andrew Lan

One can use process data for many downstream tasks such as learning outcome prediction and automatically delivering personalized intervention.

Representation Learning

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