Experiments on Morphological Reinflection: CoNLL-2017 Shared Task

نویسندگان

  • Akhilesh Sudhakar
  • Anil Kumar Singh
چکیده

We present two systems for the task of morphological inflection, i.e., finding a target morphological form, given a lemma and a set of target tags. Both are trained on datasets of three sizes: low, medium and high. The first uses a simple Long Short-Term Memory (LSTM) for lowsized dataset, while it uses an LSTMbased encoder-decoder based model for the medium and high sized datasets. The second uses a simple Gated Recurrent Unit (GRU) for low-sized data, while it uses a combination of simple LSTMs, simple GRUs, stacked GRUs and encoderdecoder models, depending on the language, for medium-sized data. Though the systems are not very complex, they give accuracies above baseline accuracies on high-sized datasets, around baseline accuracies for medium-sized datasets but mostly accuracies lower than baseline for low-sized datasets.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

The LMU System for the CoNLL-SIGMORPHON 2017 Shared Task on Universal Morphological Reinflection

We present the LMU system for the CoNLL-SIGMORPHON 2017 shared task on universal morphological reinflection, which consists of several subtasks, all concerned with producing an inflected form of a paradigm in different settings. Our solution is based on a neural sequenceto-sequence model, extended by preprocessing and data augmentation methods. Additionally, we develop a new algorithm for selec...

متن کامل

Seq2seq for Morphological Reinflection: When Deep Learning Fails

Recent studies showed that the sequenceto-sequence (seq2seq) model is a promising approach for morphological reinflection. At the CoNLL-SIGMORPHON 2017 Shared Task for universal morphological reinflection, we basically followed the approach with some minor variations. The results were remarkable in a certain sense. In high-resource scenarios our system achieved 91.46% accuracy (only modestly be...

متن کامل

Data Augmentation for Morphological Reinflection

This paper presents the submission of the Linguistics Department of the University of Colorado at Boulder for the 2017 CoNLL-SIGMORPHON Shared Task on Universal Morphological Reinflection. The system is implemented as an RNN Encoder-Decoder. It is specifically geared toward a low-resource setting. To this end, it employs data augmentation for counteracting overfitting and a copy symbol for proc...

متن کامل

If you can't beat them, join them: the University of Alberta system description

We describe our approach and experiments in the context of the CoNLLSIGMORPHON 2017 Shared Task on Universal Morphological Reinflection. We combine a discriminative transduction system with neural models. The results on five languages show that our approach works well in the low-resource setting. We also investigate adaptations designed to handle small training sets.

متن کامل

ISI at the SIGMORPHON 2017 Shared Task on Morphological Reinflection

We present a system for morphological reinflection based on the LSTM model. Given an input word and morphosyntactic descriptions, the problem is to classify the proper edit tree that, applied on the input word, produces the target form. The proposed method does not require human defined features and it is language independent also. Currently, we evaluate our system only for task 1 without using...

متن کامل

Align and Copy: UZH at SIGMORPHON 2017 Shared Task for Morphological Reinflection

This paper presents the submissions by the University of Zurich to the SIGMORPHON 2017 shared task on morphological reinflection. The task is to predict the inflected form given a lemma and a set of morpho-syntactic features. We focus on neural network approaches that can tackle the task in a limited-resource setting. As the transduction of the lemma into the inflected form is dominated by copy...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2017