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1.
ABSTRACT The model of intuitive morality and exemplars (MIME) predicts that moral representations in media content can activate related moral intuitions in audiences, and that audience members in turn are influenced by their moral instincts to select content featuring corresponding moral values. This proposition was tested and confirmed in a two-phase study. Content analyses measured the frequency of moral domain representations in top-rated popular TV serials from India and the U.S., while an implicit measure (MF-AMP) gauged the strength of corresponding moral intuitions in viewers and non-viewers of these shows. 相似文献
2.
The Combination of Text Classifiers Using Reliability Indicators 总被引：4，自引：0，他引：4
The intuition that different text classifiers behave in qualitatively different ways has long motivated attempts to build a better metaclassifier via some combination of classifiers. We introduce a probabilistic method for combining classifiers that considers the context-sensitive reliabilities of contributing classifiers. The method harnesses reliability indicators—variables that provide signals about the performance of classifiers in different situations. We provide background, present procedures for building metaclassifiers that take into consideration both reliability indicators and classifier outputs, and review a set of comparative studies undertaken to evaluate the methodology. 相似文献
3.
Following the death of Osama bin Laden in the late hours of May 1, 2011, many print newspapers throughout the United States and the world ran front-page coverage of his death the following day. Although public support for bin Laden's death was largely consistent, newspaper headlines across the country varied in their presentation of the story, from “Got the Bastard!” to a more stoic “bin Laden dead.” Content analysis derived from the model of intuitive morality and exemplars (MIME) was applied to explain variance in headlines as a function of the dominant political philosophy found in different areas of the United States—philosophies rooted in moral salience structures. The MIME suggests a reciprocal relationship between basic motivations underlying moral judgment for distinct audiences and media content produced for those audiences. Consistent with predictions, findings suggest that newspapers in conservative-leaning regions presented the story as a patriotic “killing” (an emphasis on authority and loyalty), whereas newspapers from liberal-leaning regions were more likely to present it in terms of justice restoration (an emphasis on fairness and reciprocity). 相似文献
4.
The model of intuitive morality and exemplars is an organizational framework that was created to incorporate theories of basic human motivations with both micro- and macrolevel media research. Thus far, literature has integrated a framework of basic moral intuitions (here labeled altruistic motivations) with the model but has yet to integrate a framework of basic egoistic motivations. The current study integrates frameworks for both altruistic and egoistic motivations with the model in order to examine depictions of motivational incongruities (e.g., moral dilemmas) in television content for young audiences. Findings suggest that the frequency of depicted motivational incongruities increases as audience target-age increases. In addition, findings show that most motivational incongruities involve both egoistic motives versus altruistic ones, rather than just egoistic or altruistic motives alone. Discussion centers on implications for research on media and morality as well as entertainment theory. 相似文献
5.
Lindsay Hahn Ron Tamborini Brian Klebig Eric Novotny Clare Grall Matthias Hofer 《Communication Studies》2019,70(1):59-78
Content analyses examining the values expressed in popular music have been predominantly ad hoc, limited to antisocial themes, and lacking a comprehensive theoretical coding scheme. We applied a content analytic scheme based in the model of intuitive morality and exemplars (MIME) to examine altruistic and egoistic values in popular music over 60 years. Findings show (a) more frequent representation of egoistic than altruistic motivations, and (b) the profusion of egoistic motivations focused mostly on romantic (in adult-targeted music) but also platonic (in child-targeted music) relationships. 相似文献
6.
Hierarchical Text Categorization (HTC) is the task of generating (usually by means of supervised learning algorithms) text classifiers that operate on hierarchically
structured classification schemes. Notwithstanding the fact that most large-sized classification schemes for text have a hierarchical
structure, so far the attention of text classification researchers has mostly focused on algorithms for “flat” classification,
i.e. algorithms that operate on non-hierarchical classification schemes. These algorithms, once applied to a hierarchical
classification problem, are not capable of taking advantage of the information inherent in the class hierarchy, and may thus
be suboptimal, in terms of efficiency and/or effectiveness. In this paper we propose TreeBoost.MH, a multi-label HTC algorithm consisting of a hierarchical variant of AdaBoost.MH, a very well-known member of the family of “boosting” learning algorithms. TreeBoost.MH embodies several intuitions that had arisen before within HTC: e.g. the intuitions that both feature selection and the selection
of negative training examples should be performed “locally”, i.e. by paying attention to the topology of the classification
scheme. It also embodies the novel intuition that the weight distribution that boosting algorithms update at every boosting
round should likewise be updated “locally”. All these intuitions are embodied within TreeBoost.MH in an elegant and simple way, i.e. by defining TreeBoost.MH as a recursive algorithm that uses AdaBoost.MH as its base step, and that recurs over the tree structure. We present the results of experimenting TreeBoost.MH on three HTC benchmarks, and discuss analytically its computational cost.
相似文献
| Fabrizio SebastianiEmail: |
7.
Conducting and reporting reliability tests has become a standard practice in content analytical research. However, the consequences of measurement error in coding data are rarely discussed or taken into consideration in subsequent analyses. In this article, we demonstrate how misclassification in content analysis leads to biased estimates and introduce matrix back-calculation as a simple remedy. Using Monte Carlo simulation, we investigate how different ways of collecting information about the misclassification process influence the effectiveness of error correction under varying conditions. The results show that error correction with an adequate set-up can often substantially reduce bias. We conclude with an illustrative example, extensions of the procedure, and some recommendations. 相似文献
8.
Kelly S. McNeilis 《Communication Studies》2013,64(4):400-428
The purpose of this paper is to present preliminary results of a language‐based coding system to analyze physician‐patient communication. This system is grounded in the framework of Cegala and Waldron's (1992) context‐based model of communication competence which reflects the sequential development of talk as primary to definitions of competence. Given a review of the model and identification of information exchange and relational development as the primary tasks in the medical interview, two research questions were advanced to test a coding scheme. Based on the notion that aligning one's utterances to meet self‐ and other‐goals relates to communication competence, the coding scheme was developed to include message content, function, and uptake. Frequency results showed that 32 physician‐patient dyads produced 10, 958 coded utterances. Physicians and patients contributed relatively equal numbers of units. The frequencies of each category and exploratory sequential patterns relating to competence are summarized along with a discussion of the limitations of the analytical system. Overall, the code system provided new information on content, uptake, and sequential patterns of information exchange previously unavailable from published coding scheme results. Yet, the present scheme needs to be refined to produce output that more readily identifies competent and less competent interactions. These results and issues are placed in the context of an ongoing, larger research program on communication competence in the primary care interview. 相似文献
9.
Season Tse 《文物保护研究》2013,58(6):337-351
ABSTRACTSince 2008, the Canadian Conservation Institute (CCI) has provided microfade testing (MFT) as a service to more than 13 Canadian museums, archives, and galleries. In addition to obtaining lightfastness data for objects and collections planned for exhibition, MFT is also used for research and for training. This article summarizes the experiences and practices that arose from the variety of objects tested, the demand for the service, and the lessons learned. These include protocols to ensure reliable and reproducible results with multiple users, ways to report large number of results, and how MFT data are used with the CCI Light Damage Calculator for effective communication of the results with other museum staff for exhibit planning. 相似文献
10.
《Communication methods and measures》2013,7(1):12-40
The Discussion Coding System (DCS) is a new instrument for coding face-to-face communication processes. The DCS was developed with several goals in mind: a well-grounded theoretical background, economical coding, the inclusion of nonverbal behavior into the coding, the ability to code different sized groups engaged in a variety of task types, and high ease of use. Important aspects of communication behavior are covered: the directly observable aspects of who speaks to whom, the functions of a statement for the interaction process, and the interpersonal meaning of an act on the two basic behavioral dimensions of affiliation and dominance. Furthermore, coding software was developed that greatly enhances the efficiency of coding as well as the creation of data files. The reliabilities are strong if video is used. The reliabilities for real-time coding are considerably lower but still satisfactory if special measures are taken. The validity of the DCS was established in several studies. 相似文献
11.
Ron Tamborini Sujay Prabhu Clare Grall Eric Robert Novotny Lindsay Hahn 《Mass Communication and Society》2017,20(6):800-824
Using logic suggested by the model of intuitive morality and exemplars, we examined the impact of exposure to terrorist attack news coverage on the salience of moral intuitions and prosocial behavioral intentions toward outgroup members. In an experiment, participants were randomly assigned to watch news of the 2015 Paris terrorist attacks or a control news story. Afterward, we measured the salience of five moral intuitions (sensitivity to care, fairness, loyalty, authority, and purity) and the participants’ prejudice (i.e., the lack of intentions to help outgroup members). Results showed that exposure to terrorist attack news (a) increased the salience of respect for authority and subsequently (b) reduced prosocial behavioral intentions toward outgroup members. Closer inspection revealed that authority salience mediated the effect of terrorist news exposure on these behavioral intentions toward outgroup members. In a second study using the same design as in the first study, we ensured that the ingroup and the outgroup addressed in the first study were indeed perceived differently on dimensions of ingroup membership. 相似文献
12.
《Government Information Quarterly》2020,37(4):101497
Transparency is popularly believed to enhance the public's trust in government, yet experimental studies have found mixed results. One explanation is that public trust may respond more positively to a kind of “latent transparency” in which citizens highly value the mere potential for open access to government information, even if they may have more negative reactions when presented with the particular content of actual government information, documents, or data. To test this hypothesis, we designed two survey experiments in which samples of US adults were primed with general information about the Freedom of Information Act (FOIA) or the existence of open government data.Compared to controls, we find that awareness of FOIA rights and requirements (latent transparency) tended to be unrelated, or even slightly negatively related, to trust of government agencies, contrary to our expectations. Our findings, combined with prior evidence, suggest that—even in the case of latent transparency—the popular belief in transparency's positive effects on citizen trust needs a more critical examination. Implications for the theory and practice of transparency are discussed. 相似文献
13.
Xiaoli Nan 《Communication Studies》2013,64(5):426-442
This research examines the influence of message recipients' emotional responses to televised PSAs on their attitudes toward the advocated issues. Integrating the affect-as-information paradigm and Epstein's cognitive-experiential self-theory, this research hypothesizes that message-induced emotions will have a greater influence on persuasion for individuals who have a strong faith in intuition than for those who have a weak faith in intuition. Overall, the main hypothesis was partially supported. There is some indication that faith in intuition moderates the influence of message-induced emotions on persuasion such that people with a stronger faith in intuition tend to rely more on experienced emotions when making judgments. The moderating effects of faith in intuition, however, appear to be confined to specific PSAs and discrete emotions. 相似文献
14.
Content Analysis by the Crowd: Assessing the Usability of Crowdsourcing for Coding Latent Constructs
Fabienne Lind Maria Gruber Hajo G. Boomgaarden 《Communication methods and measures》2017,11(3):191-209
Crowdsourcing platforms are commonly used for research in the humanities, social sciences and informatics, including the use of crowdworkers to annotate textual material or visuals. Utilizing two empirical studies, this article systematically assesses the potential of crowdcoding for less manifest contents of news texts, here focusing on political actor evaluations. Specifically, Study 1 compares the reliability and validity of crowdcoded data to that of manual content analyses; Study 2 proceeds to investigate the effects of material presentation, different types of coding instructions and answer option formats on data quality. We find that the performance of the crowd recommends crowdcoded data as a reliable and valid alternative to manually coded data, also for less manifest contents. While scale manipulations affected the results, minor modifications of the coding instructions or material presentation did not significantly influence data quality. In sum, crowdcoding appears a robust instrument to collect quantitative content data. 相似文献
15.
16.
《Library & information science research》1998,20(3):251-270
Three methods—explication, physical analysis, and citation patterns—are used to dissect a small literature: the information overload research from library studies. Explication is an exercise in critical reading and the trilevel explication used here examines overt research structure, backward citation chaining, and within- text inquiry. Overt structure seeks standard research characteristics. Backward citation chaining follows the abstract cognitive train of thought and a within-text inquiry analyzes textual anatomy according to implicit cues: syntactic, semantic, and pragmatic. Physical examination considers the text as artifact and inventories physical properties: publishing entity, co-authorship, literature age, or the amount of explanatory materials. Citation patterns follow bibliometric tenets and identify core researchers, co-authorship, linking citations, overall citing behavior, and the degree of peer- and self-citing. Crossdiscipline comparisons arise from a similar analysis of the overload research from consumer science and psychology/psychiatry. Conclusions arise from the literature itself and result in simple evidentiary statements. 相似文献
17.
Sang-Yeon Kim Scott S. Graham Seokhoon Ahn Michele K. Olson Daniel J. Card Molly M. Kessler 《Communication methods and measures》2016,10(4):217-232
This study demonstrates that NVivo, a popular research tool for content analysis, produces biased Cohen’s kappa as it calculates the reliability statistic at the character level, which is unsuitable for most content-analytic studies adopting a higher unit of analysis (e.g., sentence, paragraph). Based on empirical data and a statistical simulation, this study proposes a method of bias correction applicable to situations where two independent raters conduct binary coding. 相似文献
18.
Birch bark is commonly found in indigenous collections in Canadian museums. It is empirically known that light can cause the cambium side of birch bark to change colour. The purpose of this research is to better assess the light sensitivities of various colours of birch barks, and the manner, degree, and rate of colour change during light exposure. Six barks with different colours were used: beige, yellow, orange, orange-brown, red, and brown. Samples were exposed to daylight through a north-facing window (window), LED light from an enclosed chamber (LED), and the Newport-Oriel microfade tester (MFT). Window and MFT samples received a total light dose of approximately 25 Mlux-hours, and LED samples, 182 Mlux-hours. Colour monitoring of the samples showed that almost all barks initially darkened and then faded. Daylight through window caused the most rapid and extensive darkening and fading. Bluewool (BW) ratings for window samples were the lowest (most light sensitive). The MFT and LED samples showed a similar degree of colour change, with the same dose, despite the difference in intensity. Ratings of MFT samples are within one BW step difference compared to LED samples. The rate and extent of initial darkening depended on the colour of the bark; the middle range orange-toned barks showed the most rapid and extensive darkening followed by fading. 相似文献
19.
Web文本分类技术研究现状述评 总被引：1，自引：0，他引：1
本文在分析国内外Web文本分类方法研究现状的基础上,对新近出现的基于群的分类方法、基于模糊—粗糙集的文本分类模型、多分类器融合的方法、基于RBF网络的文本分类模型、潜在语义分类模型等新方法,以及K—近邻算法和支持向量机的新发展等进行了深入探讨;并对Web文本分类过程的几个关键技术:文本预处理、文本表示、特征降维、训练方法和分类算法进行了分析;最后总结了Web文本分类技术存在着新分类方法不断涌现、传统分类方法的进一步发展、文本、语音和图像分类技术的融合等几种发展趋势,以及存在着分词问题、目前还没有发现"最佳"的特征选择等研究的不足之处。 相似文献
20.
Ron Tamborini Lindsay Hahn Brian Klebig Clare Grall 《Communication Research Reports》2017,34(1):58-67
A content analysis of children’s television examined the frequency with which behaviors were (a) driven by altruistic versus egoistic motivations, (b) performed by affable/surly characters, (c) rewarded/punished, and (d) present in content popular among different age groups (2–5, 6–11, and 12–17 years old). We found that portrayal patterns stressed the importance of egoistic motivations (particularly competence, autonomy, and relatedness) for older children. The findings are interpreted in line with logic underlying the model of intuitive morality and exemplars (MIME; Tamborini, 2013), suggesting that media representations can influence the motivations of their viewers. 相似文献