TechTalks from event: NAACL 2015

9B: NLP-enabled Technology

  • How to Memorize a Random 60-Bit String Authors: Marjan Ghazvininejad and Kevin Knight
    User-generated passwords tend to be memorable, but not secure. A random, computer-generated 60-bit string is much more secure. However, users cannot memorize random 60-bit strings. In this paper, we investigate methods for converting arbitrary bit strings into English word sequences (both prose and poetry), and we study their memorability and other properties.
  • Building a State-of-the-Art Grammatical Error Correction System Authors: Alla Rozovskaya and Dan Roth
    This paper identifies and examines the key principles underlying building a state-of-the-art grammatical error correction system. We do this by analyzing the Illinois system that placed first among seventeen teams in the recent CoNLL-2013 shared task on grammatical error correction.
  • Predicting the Difficulty of Language Proficiency Tests Authors: Lisa Beinborn, Torsten Zesch, Iryna Gurevych
    Language proficiency tests are used to evaluate and compare the progress of language learners. We present an approach for automatic difficulty prediction of C-tests that performs on par with human experts. On the basis of detailed analysis of newly collected data, we develop a model for C-test difficulty introducing four dimensions: solution difficulty, candidate ambiguity, inter-gap dependency, and paragraph difficulty. We show that cues from all four dimensions contribute to C-test difficulty.