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Open AccessProceedings Article

Learning Program Embeddings to Propagate Feedback on Student Code

TLDR
A neural network method is introduced to encode programs as a linear mapping from an embedded precondition space to an embedded postcondition space and an algorithm for feedback at scale is proposed using these linear maps as features.
Abstract
Providing feedback, both assessing final work and giving hints to stuck students, is difficult for open-ended assignments in massive online classes which can range from thousands to millions of students. We introduce a neural network method to encode programs as a linear mapping from an embedded precondition space to an embedded postcondition space and propose an algorithm for feedback at scale using these linear maps as features. We apply our algorithm to assessments from the Code.org Hour of Code and Stanford University's CS1 course, where we propagate human comments on student assignments to orders of magnitude more submissions.

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Journal ArticleDOI

Fret: Functional Reinforced Transformer With BERT for Code Summarization

TL;DR: A novel model called Fret is proposed, which stands for Functional REinforced Transformer with BERT, which provides a new way to generate code comments by learning code functionalities and deepening code understanding while alleviating the problem of long dependency.

Melford: Using Neural Networks to Find Spreadsheet Errors

TL;DR: This paper shows that applying neural networks to spreadsheets allows us to find an important class of error with high precision, and uses a spatial abstraction of the cells around a particular cell to build a classifier that predicts whether a cell should contain a formula whenever it contains a number.
Journal ArticleDOI

Using the Engagement Profile to Design an Engaging Robotic Teaching Assistant for Students

Martin Cooney, +1 more
- 13 Mar 2019 - 
TL;DR: The findings suggest that using a social robot as a teaching assistant is promising using the chosen capabilities and Engagement Profile tool, and enhancing the robot’s autonomous capabilities and further investigating the role of embodiment are some important topics to be considered.

CoCoGUM: Contextual Code Summarization with Multi-Relational GNN on UMLs

TL;DR: Two global context information are explored, namely intra-class and inter-class context information, and the model CoCoGUM: Contextual Code Summarization with Multi-Relational Graph Neural Networks on UMLs is proposed, which outperforms state-of-the-art methods.
Posted Content

Combining Symbolic Expressions and Black-box Function Evaluations in Neural Programs

TL;DR: A novel framework that utilizes black-box function evaluations, in conjunction with symbolic expressions that define relationships between the given functions is presented, which generalizes significantly better to expressions of higher depth and is able to fill partial equations with valid completions.
References
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Proceedings Article

Adaptive Subgradient Methods for Online Learning and Stochastic Optimization.

TL;DR: Adaptive subgradient methods as discussed by the authors dynamically incorporate knowledge of the geometry of the data observed in earlier iterations to perform more informative gradient-based learning, which allows us to find needles in haystacks in the form of very predictive but rarely seen features.
Journal Article

Adaptive Subgradient Methods for Online Learning and Stochastic Optimization

TL;DR: This work describes and analyze an apparatus for adaptively modifying the proximal function, which significantly simplifies setting a learning rate and results in regret guarantees that are provably as good as the best proximal functions that can be chosen in hindsight.
Journal Article

Random search for hyper-parameter optimization

TL;DR: This paper shows empirically and theoretically that randomly chosen trials are more efficient for hyper-parameter optimization than trials on a grid, and shows that random search is a natural baseline against which to judge progress in the development of adaptive (sequential) hyper- parameter optimization algorithms.
Proceedings Article

Recursive Deep Models for Semantic Compositionality Over a Sentiment Treebank

TL;DR: A Sentiment Treebank that includes fine grained sentiment labels for 215,154 phrases in the parse trees of 11,855 sentences and presents new challenges for sentiment compositionality, and introduces the Recursive Neural Tensor Network.
Book

A complexity measure

TL;DR: In this paper, a graph-theoretic complexity measure for managing and controlling program complexity is presented. But the complexity is independent of physical size, and complexity depends only on the decision structure of a program.
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