DOI: 10.5281/zenodo.7894283
title: PluColl - The UNIPEN/NICI/HP data collection of Summer/Autumn 1994

description: This file contains 'on-line' handwritten words data collected on a thin Wacom PL100V integrated tablet and grey-scale LCD screen (i.e., long before the iPad!) in Summer/Autumn 1994 in a collaboration project between the handwriting group at Nijmegen University and Hewlett-Packard Bristol. HP donated this data to the International Unipen Foundation. <strong>Not</strong> within the Unipen data set (10.5281/<em>zenodo</em>.1195802) were the individually labeled characters, which<strong> are included </strong>in this data set. ___________________________________________________________________________________________________ <strong>Files overview</strong> plucoll-1994-2023.pdf Our report to HP, from 1996. Old postscript version refurbished to pdf in 2023 with minor changes.<br> At the time of the report, 35 writers were in the data set. Ultimately there were 46 writers in total.<br> plucoll-1994-2023.txt Flat text version of the .pdf ___________________________________________________________________________________________________<br> plucoll-2001.tgz Unipen file format pen-tip coordinates for words and .png images. <br> plucoll-2001-tgz.lst 46 writers, 210 isolated words per writer ./plucoll/<br> ./plucoll/angelien/<br> ./plucoll/angelien/set1.dat<br> ./plucoll/angelien/set6.dat<br> ./plucoll/angelien/set2.dat<br> ./plucoll/angelien/test.dat<br> ./plucoll/angelien/set3.dat<br> ./plucoll/angelien/set4.dat<br> ./plucoll/willem/<br> ./plucoll/willem/set1.dat<br> ./plucoll/willem/set5.dat<br> ./plucoll/willem/set6.dat<br> ./plucoll/willem/test.dat<br> ./plucoll/willem/set3.dat<br> ./plucoll/willem/set4.dat<br> ./plucoll/piet/<br> ./plucoll/piet/set1.dat<br> ./plucoll/piet/set6.dat<br> ./plucoll/piet/set2.dat<br> ./plucoll/piet/test.dat<br> ./plucoll/piet/set3.dat<br> ./plucoll/piet/set4.dat<br> (etc.)<br> ___________________________________________________________________________________________________<br> Plucoll-hwr-lbl.tgz Separate plain ASCII coordinate files (.hwr) with x,y,z and corresponding label files (.lbl) for characters<br> Plucoll-hwr-lbl-tgz.txt ./Plucoll-hwr-lbl/<br> ./Plucoll-hwr-lbl/miep/<br> ./Plucoll-hwr-lbl/miep/set1/<br> ./Plucoll-hwr-lbl/miep/set1/miep-set1-035-bouquet.hwr<br> ./Plucoll-hwr-lbl/miep/set1/miep-set1-035-bouquet.lbl<br> ./Plucoll-hwr-lbl/miep/set1/miep-set1-089-fjord.hwr<br> ./Plucoll-hwr-lbl/miep/set1/miep-set1-089-fjord.lbl<br> ./Plucoll-hwr-lbl/miep/set1/miep-set1-166-sandwich.hwr<br> ./Plucoll-hwr-lbl/miep/set1/miep-set1-166-sandwich.lbl<br> ./Plucoll-hwr-lbl/miep/set1/miep-set1-006-afghanistan.hwr<br> ./Plucoll-hwr-lbl/miep/set1/miep-set1-006-afghanistan.lbl (etc.) cat anton/set5/anton-set5-209-zigzag.lbl<br> z 12 18 0.95<br> i 53 28 0.95<br> g 95 35 0.95<br> z 149 45 0.95<br> a 213 32 0.95<br> g 243 42 0.95 cat anton/set5/anton-set5-209-zigzag.hwr<br> 3584 3500 100<br> 3582 3502 100<br> 3578 3502 100<br> 3576 3502 100<br> 3576 3502 100<br> 3578 3502 100<br> 3582 3504 100<br> 3596 3508 100<br> 3612 3512 100<br> 3630 3522 100<br> 3648 3526 100<br> . . .<br> . . . (x y z 'pressure' 0=penup 100=pendown)<br> <br> ___________________________________________________________________________________________________PluColl-Letters-for-CogniGron.tgz Simplified version, ASCII with only (x,y) coordinates, 311925 characters<br> PluColl-Letters-for-CogniGron-tgz.lst This collection was used for our IOP article on bio-inspired twitch ensemble trajectory control. ./Letters/<br> ./Letters/x/<br> ./Letters/x/Letter-x-ioff-349-npts-40-janneke-set3-018-appendix.xy<br> ./Letters/x/Letter-x-ioff-174-npts-45-marieke-set4-034-borax.xy<br> ./Letters/x/Letter-x-ioff-6-npts-35-hannie-set6-206-xylophone.xy<br> ./Letters/x/Letter-x-ioff-143-npts-50-corrie-set5-072-dixieland.xy<br> ./Letters/x/Letter-x-ioff-91-npts-45-janneke-set2-072-dixieland.xy<br> ./Letters/x/Letter-x-ioff-41-npts-41-eelco-set2-081-excellent.xy<br> ./Letters/x/Letter-x-ioff-186-npts-42-heleen-set6-034-borax.xy<br> ./Letters/x/Letter-x-ioff-78-npts-67-floris-set4-130-luxe.xy<br> ./Letters/x/Letter-x-ioff-62-npts-58-rintje-set3-146-oxford.xy<br> ./Letters/x/Letter-x-ioff-161-npts-36-martijn-set3-034-borax.xy<br> ./Letters/x/Letter-x-ioff-107-npts-33-saskia-set4-135-maxwell.xy<br> ./Letters/x/Letter-x-ioff-59-npts-49-corrie-set6-078-excellent.xy<br> ./Letters/x/Letter-x-ioff-168-npts-32-katrien-set4-161-reflex.xy (etc.) Filename tags:<br> <em>ioff </em>is the index of the first coordinate of a character in the original .hwr file<br> <em>npts</em> is the number of (x,y) points for that character cat Letter-_-ioff-203-npts-14-angelien-set3-161-reflex.xy <br> 3942 3434<br> 3952 3434<br> 3962 3434<br> 3982 3436<br> 4002 3442<br> 4026 3448<br> 4054 3458<br> 4082 3464<br> 4112 3474<br> 4134 3484<br> 4160 3492 Note: the character '_' (underscore) represents the connecting stroke between two characters (if present)<br> Explicit modeling of the connecting stroke was important in 'formal' rule-based approaches to handwriting recognition. Lambert Schomaker, May 2023<br>
description: {"references": ["L. Vuurpijl and L. Schomaker, \"Finding structure in diversity: a hierarchical clustering method for the categorization of allographs in handwriting,\" Proceedings of the Fourth International Conference on Document Analysis and Recognition, Ulm, Germany, 1997, pp. 387-393 vol.1, doi: 10.1109/ICDAR.1997.619876."]}