Liu Haitao

Liu Haitao

He is a member of the editorial board of three international academic journals, including language problem & Language Planning (the Netherlands). In lingua, Journal of Quantitative Linguistics, language problems and language planning, corpus linguistics and linguistic theory, physicaa, EPL, Pozna ń studies in contemporary linguistics, Chinese science bullet, Journal of cognitive science, glottometrics, grkg / humanik, science bulletin, pattern recognition and artificial intelligence, language application, language management, etc More than 90 papers related to linguistics have been published in science, foreign languages, modern foreign languages, complex systems and complexity science and other professional academic journals at home and abroad, and dozens of them have been indexed by SCI, SSCI, a & HCI, EI and other major international retrieval systems. The research contents include: Econometric linguistics, computational linguistics, applied linguistics, dependency grammar and valence theory, language planning and language policy, language complex network, international language linguistics and planning language, language and cognition, corpus linguistics, endangered languages, language human rights and other fields.

Character experience

Liu Haitao was born in Shanxi in 1962. In 1979, he was admitted to Xi'an Institute of metallurgy and architecture to study industrial automation. After graduation in 1983, he was assigned to a large state-owned enterprise, engaged in enterprise informatization, studied linguistics and applied linguistics in his spare time, and served as a professor level senior engineer and deputy chief engineer of the enterprise. In 2002, he was transferred to Communication University of China and engaged in the teaching and research of linguistics and applied linguistics. In 2006, he received a doctor's degree in Linguistics and applied linguistics. Later, he served as director, professor and doctoral supervisor of Institute of Applied Linguistics, Communication University of China. Since October 2010, he has been a distinguished professor of Foreign Languages College of Zhejiang University.

Gender: male;

Title: Professor;

Research areas: Computational Linguistics and econometric linguistics, valence theory and dependency grammar, international linguistics, language planning and language policy.

Research direction

Language planning and language policy

The main achievements and contributions of Professor Liu Haitao in this field are as follows:

(1) The paper "the relationship between planning language and language planning" (1996) holds that the study of planning language is of great significance to language planning. The theory and practice of planning language construction can provide useful experience for ontology planning in language planning, and the social change process of planning language can provide valuable materials for language status planning.

(2) Language planning and language policy: from definition change to discipline development (2005), this paper analyzes more than 30 attributives about language planning at home and abroad, and holds that language planning is undergoing such changes: from the view of tools to the view of resources; from structuralism to postmodernism; from univariate system to multivariable system; from pragmatism to linguistic man It is also a transition from linguistics to sociology, politics and other disciplines.

(3) The language situation and language policy of the European Union (2006) makes a systematic study on the language problems of the European Union. It holds that language policy should be a solution to practical problems rather than a written policy. In addition, Professor Liu Haitao has also written a large number of book reviews on language planning and language policy for professional journals at home and abroad.

International Linguistics

It is a field to study international language communication from multiple perspectives. The main contributions of Professor Liu Haitao in this field are as follows:

(1) The development direction of international Linguistics (1999, Esperanto) summarizes the development direction of international linguistics as the direction of sociology and semiotics, which is beneficial to a better understanding of this discipline.

(2) Pitching, Creole and planning language (2001, English), from the perspective of sociology and linguistics, makes a comparative study of the similarities and differences between planning language and contact language, and makes a detailed study of the birth, development and living environment of these special languages.

According to foreign scholars, this article is probably the most comprehensive and thorough one in this field.

(3) Neutrality of international language (2006, English) proposes that language neutrality is a concept of designing anxious scenes or politics, rather than a purely linguistic concept, and introduces a new concept of "de neutrality" into the study of international language. There are many other articles

This paper discusses the relationship between international linguistics and computational linguistics, as well as the significance and value of planned language research to linguistics.

Main contributions

Computer language dependency algorithm;

The main achievements and contributions of Professor Liu Haitao in this field are as follows:

(1) "The application of structured language knowledge base in natural language processing" (1992), which may be the first article in China to explore syntactic tagging corpus (treebank) as the knowledge source of natural language processing.

(2) Media language in natural language processing (1993) discusses the relationship between computational linguistics and media language, brings media language into the research category of international linguistics, puts forward the importance of media language (economical and instrumental), and reveals the conditions (regularity, accuracy and expressiveness) that media language should meet from the analysis of its types.

(3) The influence of Wittgenstein's philosophy of language on computational semantics (1993) aims to seek a philosophical basis for the application of computational linguistics based on statistics and data.

(4) The concept of modularization in the application of Computational Linguistics (1995) divides the development and development of the application of computational linguistics into three levels: theoretical linguistics, computational linguistics and computer science. This classification helps people with different knowledge backgrounds to better integrate into the research of the application of computational linguistics.

(5) Dependency grammar and machine translation (1997), discusses some basic problems of dependency grammar, and briefly introduces and discusses the application of dependency grammar in the field of machine translation. This paper is one of the most cited papers in dependency grammar in China.

(6) Some thoughts on natural language computer processing (2001), is language, intelligence and language computable? This paper discusses the basic problems of computational linguistics, such as semantics and decomposition, ambiguity and knowledge.

(7) The curriculum and teaching of Computational Linguistics (2005) introduces the curriculum of Computational Linguistics in Communication University of China, and holds that the curriculum of Computational Linguistics for University and graduate students should focus on the intersection of linguistics and computer science, that is, the formalization of language.

(8) Chinese dependency syntax for treebank construction (2006, English) and Chinese dependency treebank construction and application (2007, English) propose a Chinese dependency syntax, and discuss how to build and use Chinese dependency treebank.

(9) The theory of probabilistic valence patterns in natural language processing (2007) puts forward a theory of probabilistic valence patterns, which can better explain some problems of statistical natural language processing, and is the expansion and development of the traditional valence theory.

(10) "Chinese Dependency Parsing Based on treebank and machine learning" (2007) and "factors affecting dependency parsing" (2007) respectively discuss how to improve the accuracy of parsing by modifying treebank tagging system and the main factors affecting the accuracy of dependency parsing.

(11) The research of probability distribution of dependency distance (2007, English) shows that the dependency distance of natural language conforms to the right censored zeta distribution, while random language does not. Among the three languages, the average dependency distance of natural language is the smallest.

(12) The complexity of Chinese syntactic networks (2008, English) uses complex network analysis technology to study two Chinese syntactic networks constructed by "news broadcast" and "telling the truth". The two networks are small world and scale-free networks, but there are obvious differences in network characteristics. This study opens up a new way to study language (aspect) with complex networks.

(13) The role of syntactic networks in language networks (2008, English) studies the role of syntax in language networks by comparing the complex network characteristics of two randomly generated networks and syntactic networks. According to anonymous reviewers, this is an important topic in the Life Sciences (Linguistics and Psychology).

(14) Chinese syntactic econometric research based on Dependency Tree Library (2008) points out that: the average dependency distance of Chinese is about 2.84, and 40% - 50% of the dependency relationships in Chinese are not formed between adjacent words; in terms of language types, Chinese is a hybrid language with dominant words at the back, a SV, VO and adjn language; the average dependency distance of Chinese dominant words is higher than that of other languages It is significantly larger than the mean of dependency distance after the dominant word is placed.

Chinese PinYin : Liu Hai Tao