Palatalization in Korean is of two types lexical palatalization governed by language-specific phonological rules, and postlexical palatalization that appears to be purely phonetic. While lexical palatalization only occurs when a morpheme boundary intervenes between a target consonant and a palatalization trigger, post-lexical palatalization occurs irrespective of the presence of a morpheme boun...

We extend the unsupervised morpheme segmentation method Morfessor Baseline to account for the linguistic phenomenon of allomorphy, where one morpheme has several different surface forms. Our method discovers common base forms for allomorphs from an unannotated corpus. We evaluate the method by participating in the Morpho Challenge 2008 competition 1, where inferred analyses are compared against...

The present study explores the effects of frequency in learning to parse novel morphological patterns. In two experiments, suffixes were divided into three classes: high, medium and low frequency, based on the proportion of stems in the input that each suffix attached to (high frequency = 12/12, medium frequency = 6/12, and low frequency = 2/12). In Experiment 1, learners were better at segment...

In this paper, we present an unsupervised algorithm for morpheme discovery called UNGRADE (UNsupervised GRAph DEcomposition). UNGRADE works in three steps and can be applied to languages whose words have the structure prefixes-stem-suffixes. In the first step, a stem is obtained for each word using a sliding window, such that the description length of the window is minimised. In the next step p...

In this paper I develop an LFG analysis of two noun phrase types in Hungarian that can be referred to as elliptical. In one of them, Type (A), the understood noun head is entirely missing from the construction and formally the head function is performed by the head of the final modifying constituent in the phrase. The major task here is to capture, in a lexicalist framework, the formal head pro...

In studies of the acquisition of Japanese causatives, it has been reported that the morpheme –(s)ase is used at a relatively early period and at this point children can create sentences that have biclausal structures. However, if we closely look at the interpretation of the early utterances of causative sentences, we find that they are lexical causatives not syntactic causatives. Accordingly, w...

A character corresponds roughly to a morpheme in Chinese, and it usually takes on multiple meanings. In this paper, we aimed at capturing the multiple meanings of a Chinese morpheme across polymorphemic words in a growing semantic micro-space. Using Latent Semantic Analysis (LSA), we created several nested LSA semantic micro-spaces of increasing size. The term-document matrix of the smallest se...

Morph-based spoken document retrieval uses morpheme-like subword units for both language modeling and as

After the release of the open sou rce softw are implementation of M orfessor alg orithm, a series of several open evalu ations has b een org aniz ed for u nsu pervised morpheme analy sis and morpheme-b ased speech recog nition and information retrieval. T he u nsu pervised morpheme analy sis is a particu larly attractive approach for speech and lang u ag e technolog y for the morpholog ically c...

In this article we evaluate our stochastic morphosyntactic language model (SMLM) on a Hungarian newspaper dictation task that requires modeling over 1 million different word forms. The proposed method is based on the use of morphemes as the basic recognition units and the combination of a morpheme gram model and a morphosyntactic language model. The architecture of the recognition system is bas...