--- title: "Sisay Fissaha Adafre — paper by Voigt (2012) · Aethiopica 8" description: "That thesis builds a formal morphosyntactic description of Amharic for the unification-based CAT2 machine translation system, with…" authors: ["Rainer Voigt"] year: 2012 venue: "Aethiopica 8" source: "https://journals.sub.uni-hamburg.de/aethiopica/article/view/350" doi: "10.15460/aethiopica.8.1.350" licence: "CC BY-SA (journal licence per DOAJ; Aethiopica)" licence_url: "https://creativecommons.org/licenses/by-sa/4.0/" summary_licence: "Elamur Cosmic License" canonical: "https://research.elamur.ai/free/en/papers/voigt-2012-sisay-fissaha-adafre-adding-amharic/" --- [Elamur Research](https://md.research.elamur.ai/free/en/) · [this page in HTML](https://research.elamur.ai/free/en/papers/voigt-2012-sisay-fissaha-adafre-adding-amharic/) [home](https://md.research.elamur.ai/free/en/) / [papers](https://md.research.elamur.ai/free/en/papers/) / [2012](https://md.research.elamur.ai/free/en/papers/2012/page/3/) / Sisay Fissaha Adafre: Adding Amharic to a unification-based machine translation system – an experiment # Sisay Fissaha Adafre: Adding Amharic to a unification-based machine translation system – an experiment **Authors:** [Rainer Voigt](https://md.research.elamur.ai/free/en/authors/rainer-voigt/) · **Year:** 2012 · **Venue:** [Aethiopica 8](https://md.research.elamur.ai/free/en/venues/aethiopica/) ([Aethiopica 2012](https://md.research.elamur.ai/free/en/venues/aethiopica/2012/)) · **Publisher:** [Hamburg University Press](https://md.research.elamur.ai/free/en/publishers/hamburg-university-press/) · **Licence:** [CC BY-SA (journal licence per DOAJ; Aethiopica)](https://creativecommons.org/licenses/by-sa/4.0/) **Links:** [Publisher's page](https://doi.org/10.15460/aethiopica.8.1.350) · [PDF](https://journals.sub.uni-hamburg.de/aethiopica/article/download/350/350) · [DOI 10.15460/aethiopica.8.1.350](https://doi.org/10.15460/aethiopica.8.1.350) · [OpenAlex](https://openalex.org/W1553782376) **Citations:** 0 citations (OpenAlex, 2026-10-14) ## Summary This item is not a research article. It is a German-language book review by Rainer Voigt (Freie Universität Berlin) in Aethiopica 8, pp. 257–264. The reviewed work is Sisay Fissaha Adafre's 2004 Saarland dissertation. That thesis builds a formal morphosyntactic description of Amharic for the unification-based CAT2 machine translation system, with morphology implemented in the Xerox finite state tools. Voigt, a Semitist, explicitly leaves the MT engineering unassessed and examines only the linguistic analysis. He credits the author for rejecting weak parts of autosegmental (McCarthy-style) templatic theory, notably the obligatory contour principle, and for rejecting Baye Yimam's reductions of quadriliteral roots. However, he finds the Amharic data itself badly flawed: - gemination is frequently missing or misplaced; - person suffixes are wrong; - grammatical glosses are incomplete; - cleft sentences and the copula are misanalysed; - the "collocation" chapter groups unrelated phrase types together. His verdict is that whatever CAT2's merits, input data of this quality cannot support Amharic translation. For library users, the review is a cautionary case: grammar resources for low-resource languages need expert auditing. ## Key points - The reviewed book was published by Peter Lang in 2004 as volume 5 of the Sabest series (xxii + 208 pp.). It targets the CAT2 MT system, with morphology built in Xerox finite state tools. - The morphology chapter (pp. 13–74) critiques the templatic analysis. Voigt argues that a CVC:VC template, which treats gemination as length, avoids the ad hoc reassociation and spreading rules that CVCCVC requires. - The author rightly rejects the obligatory contour principle by citing roots like qql and ddb. Voigt adds a list of further qq/dd-initial roots drawn from Kane's Amharic–English dictionary (1990). - Rejecting Baye Yimam's proposal to drop a predictable second radical is justified because the reduction causes collisions. For example, dfrs would collapse into the existing root drs ("arrive"), and snbt into sbt. - Chapter 6 (pp. 187–193) proposes bi-gram and tri-gram collocations as lexical units. Voigt objects that it mixes compounds, adverbials and fully compositional phrases. He notes that qalä mïlïllïs ("interview") is really a compound noun, and that qädäm sïl ("earlier") is compositional rather than idiomatic. ## Interesting ideas - A proposed universal morphological constraint is refuted by systematically listing counterexample roots from a dictionary, rather than by arguing in the abstract. - Encoding gemination as a length feature on one slot, instead of two copied consonant slots, removes a whole cascade of corrective rules. - Multiword "collocations" found by frequency should be split into types (true compounds, idioms, compositional phrases) before any of them becomes a lexical unit. - In the cleft example, a masculine object-suffix reading clashes with a feminine name, which exposes the misanalysis; agreement mismatch thus works as a cheap validity check. - Errors in transcription and glossing, repeated across a resource, are judged fatal for the downstream system regardless of the formalism's quality. ## For Mova How these ideas could serve Mova, our small open language model — its files, stages and tests: - **I1** (learn): Mova's self-induced repair rules could be checked against lexicon-derived counterexample lists as a negative control before a rule is accepted. - **I2** (tokens): Analogous phenomena in the English morphology crate (doubled consonants in "stopped", "running") could be modelled as features, keeping lemma rules short and explainable. - **I3** (world): Only non-compositional expressions should enter the compiled lexicon or ontology, while compositional ones stay parsed, so frames remain derivable. - **I4** (frames): Gender and number agreement between a pronoun-like element and its candidate antecedent could automatically flag implausible coreference or role assignments. - **I5** (learn): Gold and silver treebanks should get targeted expert audits of systematic errors, since such errors propagate into every trained parser. *Our summary of the paper, in our own words — not its text. 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BibTeX from the library's record of the work. ```bibtex @inproceedings{voigt2012sisay, title = {{Sisay Fissaha Adafre: Adding Amharic to a unification-based machine translation system – an experiment}}, author = {Rainer Voigt}, booktitle = {Aethiopica 8}, year = {2012}, doi = {10.15460/aethiopica.8.1.350}, url = {https://doi.org/10.15460/aethiopica.8.1.350} } ``` - [← previous Rescoring N-Best Hypotheses for Arabic Speech Recognition: A Syntax- Mining Approach](https://md.research.elamur.ai/free/en/papers/abuzeina-2012-rescoring-n-best-hypotheses-arabic/) - [next → The Argobba of Ethiopia are not the Language they Speak](https://md.research.elamur.ai/free/en/papers/kifleyesus-2012-argobba-ethiopia-language-they-speak/) - [↑ back to papers of 2012](https://md.research.elamur.ai/free/en/papers/2012/page/3/) *Updated 29 October 2026*