D 2014

A System for Predictive Writing

NEVĚŘILOVÁ, Zuzana and Barbora ULIPOVÁ

Basic information

Original name

A System for Predictive Writing

Authors

NEVĚŘILOVÁ, Zuzana (203 Czech Republic, guarantor, belonging to the institution) and Barbora ULIPOVÁ (203 Czech Republic, belonging to the institution)

Edition

Brno, Eighth Workshop on Recent Advances in Slavonic Natural Language Processing, p. 11-18, 8 pp. 2014

Publisher

Tribun EU

Other information

Language

English

Type of outcome

Stať ve sborníku

Field of Study

60200 6.2 Languages and Literature

Country of publisher

Czech Republic

Confidentiality degree

není předmětem státního či obchodního tajemství

Publication form

printed version "print"

References:

RIV identification code

RIV/00216224:14330/14:00077507

Organization unit

Faculty of Informatics

ISSN

UT WoS

000374560500002

Keywords in English

predictive writing; n-gram language model; corpus; KSPC

Tags

International impact, Reviewed
Změněno: 27/5/2021 09:09, RNDr. Zuzana Nevěřilová, Ph.D.

Abstract

V originále

Most predictive writing systems are based on n-gram model with different size. Systems designed for English are easier than those for flective languages since even smaller models allow reasonable coverage. However, the same corpus size is significantly insufficient for languages with many word forms. The paper presents a new predictive writing system based on n-grams calculated from a large corpus. We designed the high-performance server-side script that returns either the most probable endings of a word or the most probable following words. We also designed the client-side script that is suitable for desktop computers without touchscreens. We calculated 150 millions most frequent n-grams for n = 1, . . . , 12 from a Czech corpus and evaluated the writing system on Czech texts. The system was then extended by custom-built model that can consist of domain or user specific n-grams. We measured the key stroke per character (KSPC) rate in two different modes: one – called letter KSPC – excludes the control keys since they are input method specific, the other – called real KSPC – includes all key strokes. We have shown that the system performs well in general (letter KSPC on average was 0.64, real KSPC on average was 0.77) but performs even better on specific domains with the appropriate custom-built model (letter KSPC and real KSPC were on average 0.63 and 0.73 respectively). The system was tested on Czech, however it can easily be adapted an arbitrary language. Due to its performance, the system is suitable for languages with high inflection.

Links

MUNI/A/0792/2013, interní kód MU
Name: Čeština v jednotě synchronie a diachronie - 2014
Investor: Masaryk University, Category A