Khanty stemmer benchmarks
Benchmark-only dictionary — not distributed
kca-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 2,175 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 |
|---|---|---|---|---|---|---|---|---|---|
kca-default |
1.0.0 |
KCA |
661 | 2,175 | 2,859 | 1,322 | 1,537 | changed tokens | 5,000 |
Radixor patch-command distribution
| Command class | Complete-corpus forms |
|---|---|
AppendCharacterCommand |
2 |
BackwardCompoundCommand |
986 |
DeleteSuffixCommand |
557 |
PreserveCommand |
1,306 |
ReplaceLastCharacterCommand |
8 |
Exact-root accuracy
| Stemmer | All exact | Changed exact | Root preserved |
|---|---|---|---|
| Private Radixor filesystem model | 98.846% | 99.154% | 98.487% |
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 / 2355344 | 0.000000% | 147 / 8881 | 1.655219% |
| Private Radixor filesystem model | LOWERCASE_GROUPS_ONLY |
0 / 2355344 | 0.000000% | 147 / 8881 | 1.655219% |
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% | 2,584 | 54.450% | 20.559% | 93.086% |
| 20% | 2,308 | 56.438% | 25.391% | 93.359% |
| 30% | 2,011 | 58.309% | 28.168% | 94.143% |
| 40% | 1,732 | 59.204% | 29.575% | 94.924% |
| 50% | 1,390 | 58.911% | 29.808% | 95.719% |
| 60% | 1,132 | 59.018% | 28.289% | 95.057% |
| 70% | 826 | 59.951% | 30.000% | 94.271% |
| 80% | 537 | 63.451% | 31.228% | 95.276% |
| 90% | 300 | 60.729% | 33.520% | 93.939% |
| 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 | 0.314 | 0.083 | 62.9 |