Patentee Name Harmonisation - ecoom.be
Patentee Name Harmonisation - ecoom.be
Patentee Name Harmonisation - ecoom.be
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marked in the previous step as a name originally containing an umlaut are also marked by<br />
executing an update query on the data.<br />
Finally, all preliminary umlaut harmonized names not marked in the previous two steps are<br />
reverted to the previous cleaned name after condensing by executing an update query on the<br />
data.<br />
Result<br />
Umlauts have <strong>be</strong>en harmonized in 9,443 names.<br />
By and large, not all umlaut variations have <strong>be</strong>en harmonized <strong>be</strong>cause refining the method to<br />
increase the num<strong>be</strong>r of matches tends to increase the num<strong>be</strong>r of mismatches quite<br />
substantially.<br />
The method presented here is very safe (100% correct matches) but it could well <strong>be</strong> improved<br />
to cover more names.<br />
Impact<br />
From 365,866 unique names to 365,564 unique names, an additional reduction of 302 names,<br />
or a total reduction of 78,158 names (17.6%).<br />
2.6 Cleaned name<br />
Final result<br />
The final cleaned name is the name after character cleaning, punctuation cleaning, legal form<br />
indication treatment, common company word removal, spelling variation harmonization,<br />
condensing and umlaut harmonization.<br />
During cleaning, the original name can <strong>be</strong>come heavily mutilated and unrecognizable (e.g., from<br />
“" NEUSON" -ÖLFELDSCHIEBER GESELLSCHAFT M.B.H.” to “NEUESOENOELFELDSCHIEBER”). In<br />
this stage, the cleaned name is only usable to identify matching names. In a subsequent step,<br />
the cleaned name will <strong>be</strong> converted back to a more readable and usable name closer to the<br />
original.<br />
In total, all 443,722 names have <strong>be</strong>en affected by one of the cleaning or harmonization steps.<br />
Final impact<br />
All cleaning and harmonization steps resulted in a reduction from 443,722 unique original<br />
names to 365,564 unique cleaned names, a reduction of 78,158 names or 17.6%.<br />
Table 23 contains an overview of the impact of every step, with the num<strong>be</strong>r of unique names<br />
<strong>be</strong>fore and after the particular cleaning and harmonization step, the reduction in the num<strong>be</strong>r of<br />
names, the cumulative reduction in the num<strong>be</strong>r of names for the particular step and all previous<br />
steps, the relative reduction compared to the total num<strong>be</strong>r of original unique names, and the<br />
cumulative relative reduction compared to the total num<strong>be</strong>r of original unique names.<br />
Table 23: step by step results of cleaning and harmonization<br />
STEP FROM TO REDUCTION REDUCTION % %<br />
CUM<br />
CUM<br />
Character cleaning 443,722 438,366 5,356 5,356 1.2 1.2<br />
Punctuation cleaning 438,366 437,336 1,030 6,386 0.2 1.4<br />
Legal form removal 437,336 392,226 45,110 51,496 10.2 11.6<br />
Common company word removal 392,226 385,771 6,455 57,951 1.5 13.1<br />
Spelling variation harmonization 385,771 384,235 1,536 59,487 0.3 13.4<br />
Condensing 384,235 365,866 18,369 77,856 4.1 17.5<br />
Umlaut harmonization 365,866 365,564 302 78,158 0.1 17.6<br />
Legal form removal and condensing are, by far, the most important steps. This does not mean<br />
that all other steps can <strong>be</strong> neglected, as these steps prepare the data for subsequent steps.<br />
Even if the impact of a particular step is low, the results of the step can greatly improve the<br />
impact of the steps that follow.<br />
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