Upper Sorbian stemmer benchmarks
Benchmark-only dictionary — not distributed
hsb-default is privately retained for reproducible measurement only. Radixor does not distribute, install, publish, register, or support this dictionary because file-applicable redistribution rights are unresolved. It has no Maven coordinates, BOM/catalog entry, standard-package membership, or Python package.
Evidence: Selected data file lacks file-applicable license evidence. Benchmarking these private bytes does not assert a right to redistribute them.
Dictionary size: . The exact count is 662 distinct usable word forms after parser-compatible filtering and exact case-preserved deduplication. Stars rank size among all 167 benchmarked dictionaries; they do not measure linguistic quality, availability, or benchmark accuracy.
The corpus, quality, generalization, and speed evidence below belongs to the private 2026-09-11 Radixor/Java 4.4.0 documentation snapshot. It is never placed on a production or release classpath.
Dictionary corpus
| Model ID | Private version | Language | Dictionary rows | Distinct usable forms | Complete tokens | Already-root | Changed | Timing workload | Timing tokens |
|---|---|---|---|---|---|---|---|---|---|
hsb-default |
1.0.0 |
HSB |
343 | 662 | 1,006 | 686 | 320 | changed tokens | 5,000 |
Radixor patch-command distribution
| Command class | Complete-corpus forms |
|---|---|
AppendCharacterCommand |
11 |
BackwardCompoundCommand |
140 |
DeleteSuffixCommand |
106 |
PreserveCommand |
687 |
ReplaceLastCharacterCommand |
62 |
Exact-root accuracy
| Stemmer | All exact | Changed exact | Root preserved |
|---|---|---|---|
| Private Radixor filesystem model | 99.901% | 99.688% | 100.000% |
Pairwise linguistic quality
OI and UI report over-stemming and under-stemming with raw numerators and denominators. A zero denominator is n/a.
| Stemmer | Dictionary mode | OI raw | OI | UI raw | UI |
|---|---|---|---|---|---|
| Private Radixor filesystem model | ALL_WORDS |
0 / 218407 | 0.000000% | 3 / 384 | 0.781250% |
| Private Radixor filesystem model | LOWERCASE_GROUPS_ONLY |
0 / 218407 | 0.000000% | 3 / 384 | 0.781250% |
Dictionary-family generalization
This frozen five-seed curve measures transfer to withheld lexical families; it does not establish redistribution or support status.
| Training rows | Median unseen occurrences | Unseen all exact | Unseen changed exact | Unseen root preserved |
|---|---|---|---|---|
| 10% | 906 | 67.257% | 10.616% | 94.498% |
| 20% | 807 | 69.716% | 13.492% | 97.436% |
| 30% | 710 | 70.183% | 14.286% | 96.667% |
| 40% | 605 | 70.984% | 14.706% | 95.122% |
| 50% | 504 | 71.230% | 17.901% | 95.906% |
| 60% | 403 | 71.216% | 19.492% | 95.620% |
| 70% | 300 | 70.530% | 18.750% | 95.146% |
| 80% | 204 | 69.268% | 19.048% | 94.203% |
| 90% | 101 | 70.297% | 20.588% | 94.118% |
| 100% | 0 | n/a | n/a | n/a |
Runtime timing
JMH average time uses 3 one-second warmup iterations, 5 one-second measurement iterations, 3 independent forks, and 1 thread.
| Benchmark | Score ms/op | Error ms | ns/token |
|---|---|---|---|
| Private Radixor filesystem model | 0.199 | 0.064 | 39.7 |