Where New Words Are Born: Distributional Semantic Analysis of Neologisms and Their Semantic Neighborhoods
What it is about
The paper asks where new words appear in semantic space. Using word vectors trained on two periods of American English (COHA, 1800 to 1989, 385M words, and COCA, 1990 to 2012), the authors take neologisms and compare their semantic neighbourhoods with those of stable control words. Two factors are tested: semantic sparsity (how few historical words lie close to the new word) and the frequency growth rate of those neighbours, measured as the Spearman correlation of frequency with decade. Neologisms sit in sparser neighbourhoods, and the neighbours of neologisms grow faster in frequency. The comparison uses 720 neologism and control pairs, and the growth factor gives the stronger signal, although sparsity also helps.
Ideas
- I1.
en/src/lexgen.rsanden/src/dict.rs: for every token in an unseen modern text that is not in theenlexicon (110,308 lemmas), count the number of known lemmas within a small co-occurrence distance, as a sparsity score. Measure whether the score separates the unknown words that are later accepted from those that are not, on a hand-labelled list. - I2. Growth-rate feature for
tools/gutenberg: for a set of words, compute the per-book frequency trend against publication date across the public-domain books, and check the sign against the known history of a few words (for example "hast" and "doth" should fall). Use this as a test of the trend function, not as a new lexicon rule. - I3. Gap report: run the
enlemmatiser (en/src/morph.rs) over the school reading texts and list the forms it cannot analyse. Measure the share that a later dictionary build would cover, as a check on the lexicon, before any neural step.
For Mova
The touch points are en/src/lexgen.rs, en/src/dict.rs and en/src/morph.rs, which handle unknown forms. The chapter is 19. The lexicon: vocabulary, multiword expressions and register, with 09. Early Modern and archaic forms for change over time. COHA and COCA are licensed corpora and are not used in the build; any measurement on them is test-only. Measure first the share of unknown forms in the school texts that the en lexicon cannot analyse.
Cite
@inproceedings{ryskina2020where,
title = {{Where New Words Are Born: Distributional Semantic Analysis of Neologisms and Their Semantic Neighborhoods}},
author = {Ryskina, Maria and Rabinovich, Ella and Berg-Kirkpatrick, Taylor},
booktitle = {SCiL 2020 (Society for Computation in Linguistics)},
year = {2020},
doi = {10.7275/1jra-8m83},
eprint = {2001.07740},
archivePrefix = {arXiv},
url = {https://doi.org/10.7275/1jra-8m83}
}References
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