BCC 코퍼스를 기반으로 한 중국어 동의어 분석 ― ‘刚’과 ‘刚刚’, ‘刚才’를 중심으로

최향란 ( Cui¸ Xianglan ),박흥수 ( Park¸ Heungsoo ) 한국중국언어학회 2021 중국언어연구 Vol.- No.96

本文利用BCC语料库提供的统计功能和多种检索式, 探索辨析同义词‘刚’、‘刚刚’、‘刚才’的词频分布差异, 单词搭配差异和语义韵的差异等方面的特征的具体方法, 以助于恰当使用同义词, 进而更好的发挥汉语交际功能。 语料库语言学途径的同义词辨析主要通过考察同义词在不同语域中的词频分布差异。统计各搭配词与关键词共现的显著程度, 观察检索行中所呈现的同义词搭配特征, 揭示出它们不同的类联结、搭配关系和语义韵等语言特征。得益于巨大库容的语料库所提供的翔实的证据, 语料库索引可对同义词群提供丰富的用法和语境, 使研究者能够比较和掌握同义词之间细微的语义语用差异, 实现对同义词的细微差异进行客观和全面的描述。 This paper makes use of the statistical function and various retrieval methods provided by BCC corpus to explore the specific methods of distinguishing the differences of word frequency distribution, word collocation and semantic rhyme of synonyms such as 刚, 刚刚and 刚才, so as to help the proper use of synonyms and give better used to the Chinese communicative function. The corpus approach to synonym discrimination is mainly based on the study of synonym frequency distribution differences in different domains. The significance of co-occurrence of each collocation word and keyword was counted, and the synonym collocation features presented in the retrieval lines were observed to reveal their different linguistic features such as class association, collocation relationship and semantic rhyme. Thanks to the abundant evidence provided by the huge corpus, corpus index can provide abundant usage and context for synonym groups, enabling researchers to compare and grasp the subtle semantic and pragmatic differences between synonyms, and realize an objective and comprehensive description of the subtle differences between synonyms.

浅析“拼”的类词缀化

崔香兰 ( Cui¸ Xianglan ),朴兴洙 ( Park¸ Heungsoo ) 한국중국언어학회 2020 중국언어연구 Vol.0 No.91

This article tried to grasp A Study on the Quasi-affix “拼”. With the continuous progress and development of society, in order to meet people’s understanding and mastery of new things, a large number of new words and word formation methods have sprung up like mushrooms, among which quasi affixes have entered people’s sight with their large number of word formation ability. Because the words composed of “拼 X” affixes are easy to remember and understand, spell fast is well known and recognized by people. This paper takes “拼 X” as the research object, references the meaning of “拼” in dictionaries, and explores the origin and development of the original meaning and meaning of the word “拼”. The quasi affixation of “拼” is judged from three criteria: the gradual deification of word meaning, the adhesion of location andthe productivity of analogy. And reference books and other materials to sort out the “拼 X” Related words, from the syllable, part of speech and internal structure characteristics of the word “拼 X” are analyzed. Finally, this paper expounds the causes of the affixation of “拼” from the internal and external aspects of the language, and forecasts the development trend of the “拼X” type words.

Source Transmit Antenna Selection for MIMO Decode-and-Forward Relay Networks

Xianglan Jin,Jong-Seon No,Dong-Joon Shin IEEE 2013 IEEE transactions on signal processing Vol.61 No.7

<P>Transmit antenna selection (TAS) is usually applied to multiple-input multiple-output (MIMO) systems because it does not require additional radio frequency (RF) chains which are quite expensive. In MIMO decode-and-forward (DF) relay networks, both source-destination and source-relay-destination paths should be simultaneously considered to find an effective source TAS (STAS). In this paper, a new STAS is proposed based on both channel state information and transmission scheme for the MIMO DF relay networks. It is also shown that the proposed STAS which selects <I>MSS</I> antennas among <I>MS</I> transmit antennas at the source can achieve full diversity regardless of the value of <I>MSS</I>. Simulation results show that the proposed STAS has better average bit error probability (BEP) performance than other STASs. Also, the proposed STAS with <I>MSS</I>=1 has lower cost, complexity, overhead, and BEP than the STAS with <I>MSS</I> > 1 using full-rate full-diversity space-time block codes with the same total transmit power.</P>

On the relationship between mutual information and bit error probability for some linear dispersion codes

Xianglan Jin,Jae-Dong Yang,Kyoung-Young Song,Jong-Seon No,Dong-Joon Shin IEEE 2009 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS Vol.8 No.1

<P>In this paper, we derive the relationship between the bit error probability (BEP) of maximum a posteriori (MAP) bit detection and the bit minimum mean square error (BMMSE). By using this result, the relationship between the mutual information and the BEP is derived for multiple-input multiple-output (MIMO) communication systems with the bit-linear linear-dispersion (BLLD) codes for the Gaussian channel. From the relationship, the lower and upper bounds on the mutual information can be derived.</P>

Switched-Power Two-Layer Superposition Coding in Cooperative Decode-Forward Relay Systems

Xianglan Jin,Hyoung-Nam Kim IEEE 2016 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS Vol.15 No.3

<P>In this paper, we consider a decode-forward relay system with a source, a relay, and a destination, where two-layer superposition codes are used at the source and the relay. An equivalent squared minimum distance (ESMD) that determines the error performance is derived by using an upper bound on the pair-wise error probability. Without deriving error probabilities, the error performance level for each of superimposed symbols can be shown in a straightforward manner by the ESMD. An optimal superposition-coded relay scheme and a suboptimal switched-power superposition coding scheme are proposed by improving the ESMD. Closed-form power allocation that maximizes the ESMD for the switched scheme is derived for 2-ary pulse amplitude modulation (PAM). An M-ary PAM generalization for the switched-power superposition-coded relay scheme is also presented. Simulation results show that significant signal-to-noise ratio gains are achieved in the optimal and switched-power superposition coding strategies for 2-ary and 4-ary PAM over the Rayleigh fading channel.</P>

Aromatic polyketides from a sponge-derived fungus Metarhizium anisopliae mxh-99 and their antitubercular activities

Xianglan Kong,Xinhua Ma,Yunying Xie,Shengxin Cai,Tianjiao Zhu,Qian Qun Gu,De-Hai Li 대한약학회 2013 Archives of Pharmacal Research Vol.36 No.6

In our screening for antitubercular agents, fivenaphtho-c-pyrones including two new naphtho-c-pyronesglycosides, indigotides G and H (1 and 2), and two diphenylethers were isolated from the extract of a sponge-derivedfungus Metarhizium anisopliae mxh-99. Their structureswere established on the basis of chemical and spectroscopicevidence. The antitubercular activities of all the compoundswere evaluated against Mycobacterium phlei. The knownisochaetochromin B2 (6) and ustilaginoidin D (7) exhibitedthe highest activity with MICs 50.0 lg/mL.

Diversity Analysis on Transmit Antenna Selection for Spatial Multiplexing Systems With ML Detection

Xianglan Jin,Durkbin Cho IEEE 2013 IEEE Transactions on Vehicular Technology VT Vol.62 No.9

<P>In this paper, we analyze the diversity order of the optimal transmit antenna selection (TAS) for spatial multiplexing (SM) systems with maximum-likelihood (ML) detection. By deriving the upper and lower bounds on the diversity order, we prove that the optimal TAS of selecting L antennas among M transmit antennas in the SM system with M transmit antennas and N receive antennas obtains a diversity order of N(M - L + 1), which coincides with the well-known results of the respective diversity orders MN and N for the special cases when L = 1 and L = M. Monte Carlo simulations confirm our theoretical result.</P>

Relay Selection for Decode-and-Forward Cooperative Network with Multiple Antennas

Xianglan Jin,Jong-Seon No,Dong-Joon Shin IEEE 2011 IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS Vol.10 No.12

<P>In this paper, a new relay selection scheme for decode-and-forward (DF) relay cooperative network with multiple antennas is proposed based on both channel state information (CSI) and transmission scheme by deriving the upper bound on the pairwise error probability (PEP) of the near-maximum-likelihood (near-ML) decoder. It is also proved that the proposed relay selection which selects m (1≤ m≤ N) relays from N relays achieves full diversity M<SUB>S</SUB> M<SUB>D</SUB>+N M<SUB>R</SUB> min[M<SUB>S</SUB>, M<SUB>D</SUB>] regardless of the value of m in the DF relay network consisting of one source, one destination, and N relays with M<SUB>S</SUB>, M<SUB>D</SUB>, and M<SUB>R</SUB> antennas, respectively. Through Monte Carlo simulation, the error correction performance of the proposed relay selection for various m is shown for the uncoded single-antenna, Alamouti coded, and multiple-input multiple-output (MIMO) DF relay networks.</P>

Maximum Diversity Achieving Decoders in MIMO Decode-and-Forward Relay Systems with Partial CSI

Xianglan Jin,김은지,임대운 한국통신학회 2014 Journal of communications and networks Vol.16 No.1

We consider multiple-input multiple-output decode-andforwardrelay systems in Rayleigh fading channels under the partialchannel state information (CSI) that the channel statistics ofthe source-relay (SR) link and the instantaneous CSI of the sourcedestinationand relay-destination links are known at the destination. In this paper, we propose a new near maximum likelihood(near-ML) decoder with two-level pairwise error probability (near-ML-2PEP) which uses the average PEP instead of the exact PEP. Then, we theoretically prove that the near-ML and near-ML-2PEPdecoders achieve the maximum diversity, which is confirmed byMonte Carlo simulations. Moreover, we show that the near-ML-2PEP decoder can also achieve the maximum diversity by substitutingthe average PEP with the values that represent the errorperformance of the SR link.

Tin Deposition with Reduced Whisker Formation and Good Solderability

Xianglan Wu,Gye Min Kim,Seok Pyo Hong,Kang Lee 한국표면공학회 2008 한국표면공학회 학술발표회 초록집 Vol.2008 No.-