本文選題：轉(zhuǎn)基因議題　切入點(diǎn)：框架分析　出處：《中國(guó)科學(xué)技術(shù)大學(xué)》2017年博士論文　論文類型：學(xué)位論文

【摘要】：轉(zhuǎn)基因技術(shù)和轉(zhuǎn)基因食品安全問(wèn)題屬于風(fēng)險(xiǎn)社會(huì)的一個(gè)典型議題。不同的社會(huì)主體基于不同的利益視角探討該話題,發(fā)展出多個(gè)議題框架。公眾對(duì)轉(zhuǎn)基因議題的討論在一定程度上影響轉(zhuǎn)基因公共政策議程,而媒介信息獲取是公眾對(duì)轉(zhuǎn)基因態(tài)度形成過(guò)程中的重要因素,影響公眾議題。近年來(lái)微信公眾平臺(tái)成為新聞消費(fèi)的重要來(lái)源�；谖⑿殴娖脚_(tái),本文主要想研究?jī)蓚�(gè)方面的問(wèn)題:一、公眾關(guān)心轉(zhuǎn)基因議題的哪些方面?二、不同媒體如何建構(gòu)轉(zhuǎn)基因議題框架?通過(guò)對(duì)這兩方面問(wèn)題的研究了解公眾對(duì)轉(zhuǎn)基因話題的信息訴求、媒體對(duì)轉(zhuǎn)基因議題框架建構(gòu)的傾向性、以及公眾議題和媒介議題之間的差距,對(duì)政府和媒體如何充分利用微信公眾平臺(tái)進(jìn)行科學(xué)傳播,提高公眾科學(xué)素養(yǎng)提出政策建議。本文主要由三個(gè)部分構(gòu)成:首先建構(gòu)計(jì)算機(jī)輔助的議題框架量化研究方法,以應(yīng)對(duì)大數(shù)據(jù)時(shí)代的海量媒介信息下的框架分析;然后利用新建構(gòu)的量化研究手段分別探討微信公眾平臺(tái)轉(zhuǎn)基因公眾議題和不同媒體對(duì)轉(zhuǎn)基因議題框架建構(gòu)的差異。一、建構(gòu)計(jì)算機(jī)輔助的議題框架量化研究方法。基于框架分析歸納模式,引入語(yǔ)義網(wǎng)絡(luò)分析的方法,歸納總結(jié)文本的議題框架。首先,將整個(gè)采集的樣本構(gòu)建議題框架抽取的語(yǔ)料庫(kù)。按照設(shè)定的標(biāo)準(zhǔn)提取核心詞匯,基于共詞分析,建構(gòu)整個(gè)語(yǔ)料庫(kù)的語(yǔ)義網(wǎng)絡(luò),并對(duì)語(yǔ)義網(wǎng)絡(luò)進(jìn)行聚類分析,獲得語(yǔ)義集群。最后對(duì)集群進(jìn)行人工編碼,概括總結(jié)每個(gè)集群的議題框架,即可獲得整體樣本存在哪幾類議題框架。在議題框架提取的基礎(chǔ)上,引入Bag-of-words模型并進(jìn)行改進(jìn),利用擴(kuò)展的模型建立文檔和框架之間的聯(lián)系,從而獲得不同議題框架在每個(gè)文檔中的統(tǒng)計(jì)。本文建構(gòu)的量化議題框架分析方法,能夠高效客觀地分析議題框架,克服信效度難以保證、分析效率低下等問(wèn)題。二、基于語(yǔ)義網(wǎng)絡(luò)分析,研究公眾對(duì)轉(zhuǎn)基因議題關(guān)心的方面。通過(guò)微信公眾平臺(tái)采集的824篇有關(guān)轉(zhuǎn)基因議題的文章進(jìn)行分析,探討其有關(guān)轉(zhuǎn)基因食品及作物的內(nèi)容中所涉及的方面和偏向性,以可視化圖像直觀呈現(xiàn)其議題內(nèi)容,公眾關(guān)心的方面涉及轉(zhuǎn)基因生物安全政策、食品標(biāo)識(shí)政策、轉(zhuǎn)基因食品辨別、轉(zhuǎn)基因食品事件披露等多個(gè)議題,但是分布不均勻。公眾對(duì)轉(zhuǎn)基因相關(guān)科普知識(shí)比較關(guān)心,但是微信公眾平臺(tái)文章整體上質(zhì)量不高,來(lái)自權(quán)威公眾號(hào)的高質(zhì)量文章數(shù)量也有限。微信科普需要加強(qiáng)建立權(quán)威科普公眾號(hào),擴(kuò)大微信公眾平臺(tái)整體發(fā)文數(shù)量,提高文章質(zhì)量,保障內(nèi)容的科學(xué)性。三、基于語(yǔ)義網(wǎng)絡(luò)和Bag-of-words模型提出的量化議題框架分析方法,比較中央主流媒體、生活服務(wù)媒體與科普類媒體對(duì)轉(zhuǎn)基因不同議題框架的關(guān)注。研究表明,媒體對(duì)轉(zhuǎn)基因報(bào)道的議題框架是多元化的,涉及六大議題框架:技術(shù)進(jìn)步、科普、經(jīng)濟(jì)、社會(huì)影響、風(fēng)險(xiǎn)與安全管理、科學(xué)研究。不同類型的媒體對(duì)轉(zhuǎn)基因議題進(jìn)行報(bào)道呈現(xiàn)明顯的議題偏向性,而公眾往往只訂閱部分媒體的微信公眾號(hào),接收到的信息可能存在片面性。受眾面廣的媒體尤其是央媒應(yīng)該注重內(nèi)容的多樣化和平衡,保證受眾能接收到全面信息�；谝陨涎芯拷Y(jié)果,對(duì)政府和媒體在微信公眾平臺(tái)進(jìn)行科學(xué)傳播給出政策建議:(1)建立關(guān)于轉(zhuǎn)基因媒體報(bào)道和受眾需求的平衡機(jī)制。政府和媒體要有針對(duì)性地進(jìn)行議題建構(gòu),保障公眾對(duì)轉(zhuǎn)基因科學(xué)知識(shí)和信息的訴求得到滿足。(2)加強(qiáng)對(duì)微信公眾平臺(tái)轉(zhuǎn)基因謠言的管控,建立合理的謠言篩查和信息公布機(jī)制,維護(hù)良好的科學(xué)傳播環(huán)境,提高公眾科學(xué)素養(yǎng)。
[Abstract]:A typical issue of transgenic technology and genetically modified food safety problem belongs to the risk society. To explore the topic from the perspective of interests of different social subjects based on the development of a number of issues. The framework of public discussion of issues affecting transgenic transgenic public policy agenda to a certain extent, and the media information acquisition is an important factor in the formation of the public the attitude to GM, influence public issues. In recent years WeChat public platform has become an important source of news consumption. Based on the platform of WeChat public, this paper want to study the problem in two aspects: first, what aspects of public concern that transgenic issues? Two, different media how to construct the transgenic issue frame? Through research to understand the public on the two the problems on the topic of genetically modified information demands, tendency of media on the transgenic issue frame construction, and the public and the media on the issue The gap between the government and the media how to make full use of the WeChat platform for public science communication, put forward policy suggestions on how to improve the scientific literacy of the public. This paper mainly consists of three parts: the first construction issue frame quantitative research method of computer aided, to cope with the large number of times according to the analysis framework of mass media information; and then use the difference quantitative research means the new construction discusses WeChat public platform on public issues and different transgenic media construction of transgenic issue frame. A construction issue frame quantitative research method of computer aided analysis. The inductive model framework based on the method of introducing semantic network analysis, summarized issue frame text of the summary. First of all, the whole sample construction issue frame extraction to extract the core vocabulary corpus. In accordance with the standards set based on CO word analysis, construction of the whole corpus The semantic network, and the semantic network by clustering analysis of the semantic cluster. Finally, the artificial encoding of the cluster, each cluster summary summary issue frame, you can get the whole sample which a few issues. Based on the issue of frame extraction framework, Bag-of-words model is introduced and improved, the extended model is established between the document and the frame connection, so as to obtain statistics in each document in the framework of different issues. Quantitative analysis method to construct the framework of this issue, can objectively analyze the issues framework, overcome the validity analysis problem is difficult to guarantee, the efficiency is low. Two, semantic network analysis based on research on public issues concerned. Transgenic acquisition through WeChat public platform 824 papers on transgenic issues were analyzed, discussing its related content in crops and genetically modified food And the bias of the visual image show its topics of public concern, involving the security policy of genetically modified organisms, food labeling policy, to identify genetically modified food, genetically modified food events revealed a number of issues, but the distribution is not uniform. The public were concerned about genetically related scientific knowledge, but the whole WeChat public platform the quality is not high, but also a limited number of high quality articles from the authority of public number. WeChat science needs to strengthen the authority of science to establish the public, expand the overall number of WeChat issued a public platform, improve the quality, guarantee the scientific content. Three, proposed the framework of the semantic network and issues of quantitative analysis method based on Bag-of-words model, compared with the central mainstream media service life, media and popular science media attention on different issues. The framework of transgenic research shows that the media reports to GM Issue frame is diversified, relates to the framework of the six major issues: technological progress, science, economy, social impact, research on the risk and safety management science. Different types of media on GM topics reported significant issues of bias, WeChat public and the public tend to subscribe only part of the media, the received information may there is one sidedness. Wide audience media especially the central media should pay attention to content diversification and balance, ensure the audience can receive comprehensive information. Based on the above results, the government and the media in the WeChat platform for public dissemination of scientific policy recommendations: (1) establish a balance mechanism on genetically modified media reports and public demand.. the government and the media should be targeted for subject construction, safeguard public demands for transgenic scientific knowledge and information are met. (2) to strengthen the WeChat public platform that GM The management and control of the words, the establishment of a reasonable mechanism of rumor screening and information disclosure, the maintenance of a good scientific communication environment, and the improvement of public scientific literacy.

【學(xué)位授予單位】：中國(guó)科學(xué)技術(shù)大學(xué)
【學(xué)位級(jí)別】：博士
【學(xué)位授予年份】：2017
【分類號(hào)】：G206
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本文編號(hào)：1591216