Tatar stemmer benchmarks
Benchmark-only dictionary — not distributed
tat-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 7,483 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 |
|---|---|---|---|---|---|---|---|---|---|
tat-default |
1.0.0 |
TAT |
1,258 | 7,483 | 8,745 | 2,516 | 6,229 | changed tokens | 6,229 |
Radixor patch-command distribution
| Command class | Complete-corpus forms |
|---|---|
BackwardCompoundCommand |
241 |
DeleteSuffixCommand |
5,987 |
PreserveCommand |
2,517 |
Exact-root accuracy
| Stemmer | All exact | Changed exact | Root preserved |
|---|---|---|---|
| Private Radixor filesystem model | 99.943% | 99.952% | 99.921% |
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 / 27975338 | 0.000000% | 17 / 18565 | 0.091570% |
| Private Radixor filesystem model | LOWERCASE_GROUPS_ONLY |
0 / 27975338 | 0.000000% | 17 / 18565 | 0.091570% |
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% | 7,870 | 93.380% | 94.131% | 92.314% |
| 20% | 6,993 | 94.025% | 94.359% | 94.135% |
| 30% | 6,123 | 94.757% | 95.023% | 94.098% |
| 40% | 5,246 | 94.949% | 95.349% | 94.960% |
| 50% | 4,370 | 95.467% | 95.459% | 95.367% |
| 60% | 3,495 | 95.769% | 95.868% | 95.817% |
| 70% | 2,618 | 95.225% | 95.506% | 94.960% |
| 80% | 1,750 | 95.533% | 95.677% | 96.000% |
| 90% | 873 | 95.642% | 95.513% | 95.968% |
| 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 | 0.152 | 0.053 | 24.4 |