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宋珉錫 건국대학교 1995 대학원 학술논문집 Vol.41 No.-
The purpose of this study is to explain the present conditions and problems of the investment in North Korea of Domestic firms, and further explore the activationary plan of the investment in North Korea Domestic firms. Reflecting on the thirty years which have passed since Korea was divided, it is clear that since 1953 the economy of the two Koreas has undergone may changes under their two different social and economic systems, and that the two economies will continue to follow different courses in the future. North Korea has acted a passive attitude toward the foreign trade, because she has pursued the autarchic economic development policy on the basis of the socialistic economic system as yet. Therefore, she has congnized that it is impossible to develop the economy by the principle of the self-revival what is to say a self-support national economy and the closed trade system which has been excuted in the countries centering on the Communistic Area. So she had to change to the foreign trade system as the open system by transforming the autarchic system they hierto adhered to. This brief overview of recent developments attempts to compare various economic indicators and thus show how rapidly the Congress. This remains a principal government policy down to the present day. Judging from these circumstances as mentioned above, it can be suggested that the economy of North Korea holds certain structural defects which will eventually bring aboutq a transformation from the presently closed society to an open one. Any dramatic changes in the basic policy guidelines which have been followed to date, however, would mean the abandonment of the fundamental ideology and the political posture which supports the present system. As a result, it seems probable that the 1990s will be a period of expand bilateral partnership in the areas of economy between South and North Korea.
구조보존규칙으로서의 영어 비음동화:[η]에 대한 해결책
宋旼錫 관동대학교 1995 關大論文集 Vol.23 No.2
The velar nasal [ŋ] is an allophone of /n/ in English. This fact is evidenced by distributional restrictions. That is, [ŋ] always appears before /g/ or /k/, while /m/ and /n/ occur freely. But in the theory of Lexical Phonology, the English Nasal Assimilation which derives the velar nasal [ŋ] must be a phonological rule which applies in the lexicon. For this rule must precede the morphological process suffixing '-er', as shown in the examples of "sing" and "singer" ("singer" is pronounced as [siŋ( )r], not as [siŋg( )r]). On the other hand, a lexical rule must be structure-preserving in the sense that if a feature is not distinctive in any context it may not play any role in the lexical phonology(Kiparsky, 1984). With regard to this principle of Structure Preservation, the above nasal assimilation has a problem because this process is not structure-preserving but must be lexical. To solve this problem, Borowsky(1986) says that the above nasal assimilation is applied at level 2 and that the principle of Structure Preservation turns off at level 2. This is an ad hoc solution. If this solution is accepted, the word of "concord" must be derived at level 2 while the words of "combine" and "concern" are derived at level 1 (independently motivated). This paper tries to solve this problem in the standpoint of the feature geometry theory. In the feature geometry, the process of spreading to an underspecified target is interpreted as structure-preserving. And the above nasal assimilation is a process of spreading to an underspecified target because the place feature of the phoneme /n/ is underspecified in the underlying representation. In the result, the English nasal assimilation is a structure-preserving process and can apply freely in the lexicon. As another desirable result, we can say that all lexical phonology is structure-preserving.
송민석,이기영 한국음성과학회 1999 음성과학 Vol.6 No.1
This study proposes a method of recognizing postpositions and suffixes in Korean spoken language, using prosodic information. We detect grammatical boundaries automatically at first, by using prosodic information of the accentual phrase, and then we recognize grammatical function words by backward-tracking from the boundaries. The experiment employs 300 sentential speech data of 10 men's and 5 women's voice spoken in standard Korean, in which 1080 accentual phrases and II postpositions and suffixes are included. The result shows the recognition rate of postpositions in two cases. In one case in which only correctly detected boundaries are included, the recognition rate is 97.5%, and in the other case in which all detected boundaries are included, the recognition rate is 74.8%. Keywords: accentual phrase, backward-tracking, continuous speech
Balancing MPEG Transcoding with Storage in Multiple-Quality Video-on-Demand Services
송민석,심정섭,Jaedoo Go,Bumsun Lee,박수준 한국전자통신연구원 2009 ETRI Journal Vol.31 No.3
To match the requirements of heterogeneous mobile devices, video objects may be transcoded, which requires considerable CPU resources. Alternatively, multiple versions of the same video may be stored on servers, but this requires a lot of disk space. We formulate the trade-off between the versions that are stored on disk and the need for transcoding. We propose an optimal solution to this formulation based on dynamic programming. Experiments show that our scheme allows up to 68% more clients to be admitted than conventional schemes when a reasonable amount of storage is available.