TAILIEUCHUNG - Báo cáo khoa học: "FEATURE-BASED ALLOMORPHY*"

Morphotactics and allomorphy are usually modeled in different components, leading to interface problems. To describe both uniformly, we define finite automata (FA) for allomorphy in the same feature description language used for morphotactics. Nonphonologically conditioned allomorphy is problematic in FA models but submits readily to treatment in a uniform formalism. | FEATURE-BASED ALLOMORPHY Hans-Ulrich Krieger Hannes Pirker German Research Center for Artificial Intelligence DFKI Stuhlsatzenhausweg 3 W-66 Saarbriicken 11 Germany krieger pirker @dfki. uni-sb. de Abstract Morphotactics and allomorphy are usually modeled in different components leading to interface problems. To describe both uniformly we define finite automata FA for allomorphy in the same feature description language used for morphotactics. Nonphonologically conditioned allomorphy is problematic in FA models but submits readily to treatment in a uniform formalism. 1 Background and Goals Allomorphy or MORPHOPHONEMICS describes the variation we find among the different forms of a morpheme. For instance the German second person singular present ending -st has three different allomorphs -st -est -t determined by the stem it combines with say pray mix 1 Isg pres ind sag e bet e mix e 2sg pres ind sag st bet-best mix t 3sg pres ind sag t bet et mix t Morphotactics describes the arrangement of morphs in words including . the properties of -st that it is a suffix and thus follows the stem it combines with and that it combines with verbs. While allomorphy is normally described in finite automata FA morphotactics is generally described in syntax-oriented models . CFGs or feature-based grammars. The present paper describes both allomorphy and morphotactics in a feature-based language like that of Head-Driven Phrase Structure Grammar HPSG Pollard and Sag 1987 . This work was supported by research grant ITW 9002 0 from the German Bundesministerium fur Forschung und Technologie to the DFKI DISCO project. We are grateful to an anonymous ACL reviewer for helpful comments. John Nerbonne Alfa Informatica 716 Oude Kijk in t Jatstraat 41 Rijksuniversiteit Groningen NL 9700 AS Groningen Holland nerbonne@ The technical kernel of the paper is a featurebased definition of While it is unsurprising that the languages defined by FA may also be defined by .

TAILIEUCHUNG - Chia sẻ tài liệu không giới hạn
Địa chỉ : 444 Hoang Hoa Tham, Hanoi, Viet Nam
Website : tailieuchung.com
Email : tailieuchung20@gmail.com
Tailieuchung.com là thư viện tài liệu trực tuyến, nơi chia sẽ trao đổi hàng triệu tài liệu như luận văn đồ án, sách, giáo trình, đề thi.
Chúng tôi không chịu trách nhiệm liên quan đến các vấn đề bản quyền nội dung tài liệu được thành viên tự nguyện đăng tải lên, nếu phát hiện thấy tài liệu xấu hoặc tài liệu có bản quyền xin hãy email cho chúng tôi.
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.