106 research outputs found
Ontology-based Classification of News in an Electronic Newspaper
This paper deals with the classification of news items in ePaper, a prototype system of a future
personalized newspaper service on a mobile reading device. The ePaper system aggregates news items from
various news providers and delivers to each subscribed user (reader) a personalized electronic newspaper,
utilizing content-based and collaborative filtering methods. The ePaper can also provide users "standard" (i.e., not
personalized) editions of selected newspapers, as well as browsing capabilities in the repository of news items.
This paper concentrates on the automatic classification of incoming news using hierarchical news ontology.
Based on this classification on one hand, and on the users' profiles on the other hand, the personalization engine
of the system is able to provide a personalized paper to each user onto her mobile reading device
Reclassifying conflict narratives in the Israeli news media
This article presents a general framework for deconstructing and classifying conflict news narratives. This framework, based on a nuanced and contextual approach to analyzing media representations of conflict actors and events, addresses some of the weaknesses of existing classification schemes, focusing in particular on the dualistic approach of the peace journalism model. Using quantitative content analysis, the proposed framework is then applied to the journalistic coverage in the Israeli media of three Middle-Eastern conflicts: the Israeli–Palestinian conflict, the conflict surrounding Iran's nuclear program, and the Syrian civil war. The coverage is examined in three leading news outlets – Haaretz, Israel Hayom, and Ynet – over a six-month period. Based on hierarchical cluster analysis, the article identifies four characteristic types of narratives in the examined coverage. These include two journalistic narratives of violence: one inward-looking, ethnocentric narrative, and one outward-looking narrative focusing on outgroup actors and victims; and two political-diplomatic narratives: one interactional, and one outward-looking. In addition to highlighting different constellations of points of view and conflict measures in news stories, the identified clusters also challenge several assumptions underlying existing models, such as the postulated alignment between elite/official actors and violence frame
Chapter 8 Persistent Optimism under Political Uncertainty
This chapter examines the social dynamics of projections about the outcomes and implications of the repeated elections in Israel. Based on a combination of a panel survey and focus groups, we analyze citizens’ evolving predictions regarding the expected largest party, the next prime minister, the coalition composition, and the future of Israel more generally. Introducing a conceptual framework that breaks political projections into several constituent elements, we study what probabilities and evaluations people assign to their predictions, how they explain them, and what their implications are for political participation. We show that despite the deepening political crisis, Israeli citizens’ political optimism did not decrease during the three 2019–2020 election campaigns. Furthermore, we find an important link between intention to vote and the expected level of happiness about the predicted outcomes. Based on these findings, we argue that persistent optimism is one explanation for the higher voter turnout in each round of elections. In the epilogue we consider additional insights from the 2021 election, which saw a reversal in voters’ growing optimism and turnout, but which eventually fulfilled hopes of the anti-Netanyahu camp for political change
Online Political Comments: Americans Talk About the Election Through a “Horse-Race” Lens
This study examined whether user-generated comments posted on news stories about the 2016 U.S. presidential campaign focused on candidates’ policies or on horse-race elements of the election, such as who is winning or losing. Using a quantitative content analysis (n = 1,881), we found that most comments had neither horse-race nor policy elements, but that horse-race elements were more frequent in comments than policy, mirroring what is found in news coverage. The public were more likely to “like” or “upvote” comments that contained either policy or horse-race elements, relative to other comments, although the relationship was slightly stronger for horse race
Car following with an inertia-oriented driving technique: A driving simulator experiment
For many decades, car-following (CF) and congestion models have assumed a basic invariance: drivers’ default driving strategy is to keep the safety distance. The present study questions that Driving to keep Distance (DD) is a traffic invariance and, therefore, that the difference between the time required to accelerate versus decelerate must necessarily determine the observed patterns of traffic oscillations. Previous studies have shown that drivers can adopt alternative CF strategies like Driving to keep Inertia (DI) by following basic instructions. The present work aims to test the effectiveness of a DI course that integrates 4 tutorials and 4 practice sessions in a standard PC computer designed to learn more adaptive driving behaviors in dense traffic. Methods. Sixty-eight drivers were invited to follow a leading car that varied its speed on a driving simulator, then they took a DI course on a PC computer, and finally they followed a fluctuating leader again on the driving simulator. The study adopted a pretest-intervention-posttest design with a control group. The experimental group took the full DI course (tutorials and then simulator practice). The control group had access to the DI simulator but not to the tutorials. Results. All participating drivers adopted DD as the default CF mode on the pre-test, yielding very similar results. But after taking the full DI course, the experimental group showed significantly less accelerations, decelerations, and speed variability than the control group, and required greater CF distance, that was dynamically adjusted, spending less fuel in the post-test. A group of 8 virtual cars adopting DD required less space on the road to follow the drivers that took the DI course
“You’d be Right to Indulge Some Skepticism”:Trust-building Strategies in Future-oriented News Discourse
This paper explores trust-building strategies in future-oriented news discourse, marked by a high degree of uncertainty. While current research mainly focuses on audiences’ perceptions of news credibility, this study addresses news trust from a production standpoint. We examine the trust-building efforts of media actors, focusing on their discursive labor within the context of election projections. Drawing on rich data from five election rounds in Israel and the US, we qualitatively analyzed 400 news texts and 400 tweets that were produced by 20 US and 20 Israeli media actors. This textual analysis was supplemented by 10 in-depth interviews with Israeli journalists. Our findings demonstrate three types of journalistic trust-building rhetoric in election coverage: facticity, authority, and transparency. These strategies result in a two-fold form of trust, which re-affirms traditional notions of accuracy and validity, while also challenging the ability of newspersons to obtain them in contemporary political and media cultures. Overall, these strategies hold unique opportunities and challenges for sustaining public trust in journalism and illuminate the complex communicative labor involved in building trust with news audiences. Our findings also highlight the importance of studying trust not only in relation to the past and the present, but also in future-oriented discourse
“You’d be Right to Indulge Some Skepticism”:Trust-building Strategies in Future-oriented News Discourse
This paper explores trust-building strategies in future-oriented news discourse, marked by a high degree of uncertainty. While current research mainly focuses on audiences’ perceptions of news credibility, this study addresses news trust from a production standpoint. We examine the trust-building efforts of media actors, focusing on their discursive labor within the context of election projections. Drawing on rich data from five election rounds in Israel and the US, we qualitatively analyzed 400 news texts and 400 tweets that were produced by 20 US and 20 Israeli media actors. This textual analysis was supplemented by 10 in-depth interviews with Israeli journalists. Our findings demonstrate three types of journalistic trust-building rhetoric in election coverage: facticity, authority, and transparency. These strategies result in a two-fold form of trust, which re-affirms traditional notions of accuracy and validity, while also challenging the ability of newspersons to obtain them in contemporary political and media cultures. Overall, these strategies hold unique opportunities and challenges for sustaining public trust in journalism and illuminate the complex communicative labor involved in building trust with news audiences. Our findings also highlight the importance of studying trust not only in relation to the past and the present, but also in future-oriented discourse
“You’d be Right to Indulge Some Skepticism”:Trust-building Strategies in Future-oriented News Discourse
This paper explores trust-building strategies in future-oriented news discourse, marked by a high degree of uncertainty. While current research mainly focuses on audiences’ perceptions of news credibility, this study addresses news trust from a production standpoint. We examine the trust-building efforts of media actors, focusing on their discursive labor within the context of election projections. Drawing on rich data from five election rounds in Israel and the US, we qualitatively analyzed 400 news texts and 400 tweets that were produced by 20 US and 20 Israeli media actors. This textual analysis was supplemented by 10 in-depth interviews with Israeli journalists. Our findings demonstrate three types of journalistic trust-building rhetoric in election coverage: facticity, authority, and transparency. These strategies result in a two-fold form of trust, which re-affirms traditional notions of accuracy and validity, while also challenging the ability of newspersons to obtain them in contemporary political and media cultures. Overall, these strategies hold unique opportunities and challenges for sustaining public trust in journalism and illuminate the complex communicative labor involved in building trust with news audiences. Our findings also highlight the importance of studying trust not only in relation to the past and the present, but also in future-oriented discourse
Mapping the Arabidopsis Metabolic Landscape by Untargeted Metabolomics at Different Environmental Conditions
Metabolic genome-wide association studies (mGWAS), whereupon metabolite levels are regarded as traits, can help unravel the genetic basis of metabolic networks. A total of 309 Arabidopsis accessions were grown under two independent environmental conditions (control and stress) and subjected to untargeted LC-MS-based metabolomic profiling; levels of the obtained hydrophilic metabolites were used in GWAS. Our two-condition-based GWAS for more than 3000 semi-polar metabolites resulted in the detection of 123 highly resolved metabolite quantitative trait loci (p ≤ 1.0E-08), 24.39% of which were environment-specific. Interestingly, differently from natural variation in Arabidopsis primary metabolites, which tends to be controlled by a large number of small-effect loci, we found several major large-effect loci alongside a vast number of small-effect loci controlling variation of secondary metabolites. The two-condition-based GWAS was followed by integration with network-derived metabolite-transcript correlations using a time-course stress experiment. Through this integrative approach, we selected 70 key candidate associations between structural genes and metabolites, and experimentally validated eight novel associations, two of them showing differential genetic regulation in the two environments studied. We demonstrate the power of combining large-scale untargeted metabolomics-based GWAS with time-course-derived networks both performed under different abiotic environments for identifying metabolite-gene associations, providing novel global insights into the metabolic landscape of Arabidopsis. By combining large-scale untargeted metabolomics-based GWAS and network analysis with environmental stress-driven perturbations of metabolic homeostasis, this system-wide study provides new global insights into the metabolic landscape of Arabidopsis, using a strategy that could readily be extended to other plant species.</p
Retroactive causation and the temporal construction of news: contingency and necessity, content and form
This article affords particular attention to the relationship between memory, the narrativization of news and its linear construction, conceived as journalism’s ‘memory- work’. In elaborating upon this ‘work’, it is proposed that the Hegelian notion of retroactive causation (as used by Slavoj Žižek) can examine how analyses of news journalists ‘retroactively’ employ the past in the temporal construction of news. In fact, such retroactive (re)ordering directs attention to the ways in which journalists contingently select ‘a past’ to confer meaning on the present. With regard to current literature, it is noted that a retroactive analysis can highlight two important dialectics within the practice of news journalism: 1) the relation between contingency and necessity; and, 2) the relation between content and form. Indeed, it is argued that this theoretical account offers a novel approach to examining the significance of memory in news journalism as well as the inconsistencies which underscore journalism’s memory-work. It is in accordance with such inconsistency that broader reflections on time, temporality and our relations to the past can be made
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