Using Robust PCA to estimate regional characteristics of language use from geo-tagged Twitter messages

Principal component analysis (PCA) and related techniques have been successfully employed in natural language processing. Text mining applications in the age of the online social media (OSM) face new challenges due to properties specific to these use cases (e.g. spelling issues specific to texts posted by users, the presence of spammers and bots, service announcements, etc.). In this paper, we employ a Robust PCA technique to separate typical outliers and highly localized topics from the low-dimensional structure present in language use in online social networks. Our focus is on identifying geospatial features among the messages posted by the users of the Twitter microblogging service. Using a dataset which consists of over 200 million geolocated tweets collected over the course of a year, we investigate whether the information present in word usage frequencies can be used to identify regional features of language use and topics of interest. Using the PCA pursuit method, we are able to identify important low-dimensional features, which constitute smoothly varying functions of the geographic location

Leveraging Personal Navigation Assistant Systems Using Automated Social Media Traffic Reporting

Modern urbanization is demanding smarter technologies to improve a variety of applications in intelligent transportation systems to relieve the increasing amount of vehicular traffic congestion and incidents. Existing incident detection techniques are limited to the use of sensors in the transportation network and hang on human-inputs. Despite of its data abundance, social media is not well-exploited in such context. In this paper, we develop an automated traffic alert system based on Natural Language Processing (NLP) that filters this flood of information and extract important traffic-related bullets. To this end, we employ the fine-tuning Bidirectional Encoder Representations from Transformers (BERT) language embedding model to filter the related traffic information from social media. Then, we apply a question-answering model to extract necessary information characterizing the report event such as its exact location, occurrence time, and nature of the events. We demonstrate the adopted NLP approaches outperform other existing approach and, after effectively training them, we focus on real-world situation and show how the developed approach can, in real-time, extract traffic-related information and automatically convert them into alerts for navigation assistance applications such as navigation apps.Comment: This paper is accepted for publication in IEEE Technology Engineering Management Society International Conference (TEMSCON'20), Metro Detroit, Michigan (USA

Dampak Media Sosial terhadap Kegiatan Kesenian Mahasiswa

The purpose of this study was to describe the factors and impact of social media on art activities on art students in Lombok Timur. The method used is quantitative by survey analysis using questionnaires to collect data from 164 art students at universities in Lombok Timur. The results of this finding that the habit factor of students using social media dominates more, in addition to the intensity factor of watching art activities. On the utilization factor makes more art products, although the attendance factor at art activities directly also supports. The condition factor of society, namely religion dominates the use of social media in addition to language, art, and tradition. Location factor in accessing more at home than on campus, internet café or recreation place. The impact of social media shows that on student art activities are strongly influenced by the use of social media. The majority of students agree that social media does not damage student activities, besides social media is very instrumental in designing artworks, encouraging creativity and being a motivation to promote their work. Conclusions from this study are habit factors, influence factors, intensity factors, utilization factors, direct attendance factors, community condition factors, and factors where the use of media is very determining art activities by art students. Student art activities are strongly influenced by the use of social media and do not damage or interfere with student activities. Keyword: Arts activities, Students of Arts, Social medi

Global disease monitoring and forecasting with Wikipedia

Infectious disease is a leading threat to public health, economic stability, and other key social structures. Efforts to mitigate these impacts depend on accurate and timely monitoring to measure the risk and progress of disease. Traditional, biologically-focused monitoring techniques are accurate but costly and slow; in response, new techniques based on social internet data such as social media and search queries are emerging. These efforts are promising, but important challenges in the areas of scientific peer review, breadth of diseases and countries, and forecasting hamper their operational usefulness. We examine a freely available, open data source for this use: access logs from the online encyclopedia Wikipedia. Using linear models, language as a proxy for location, and a systematic yet simple article selection procedure, we tested 14 location-disease combinations and demonstrate that these data feasibly support an approach that overcomes these challenges. Specifically, our proof-of-concept yields models with $r^2$ up to 0.92, forecasting value up to the 28 days tested, and several pairs of models similar enough to suggest that transferring models from one location to another without re-training is feasible. Based on these preliminary results, we close with a research agenda designed to overcome these challenges and produce a disease monitoring and forecasting system that is significantly more effective, robust, and globally comprehensive than the current state of the art.Comment: 27 pages; 4 figures; 4 tables. Version 2: Cite McIver & Brownstein and adjust novelty claims accordingly; revise title; various revisions for clarit

THE ACCUSED IS ENTERING THE COURTROOM: THE LIVE-TWEETING OF A MURDER TRIAL.

© 2017 Informa UK Limited, trading as Taylor & Francis GroupThe use of social media is now widely accepted within journalism as an outlet for news information. Live tweeting of unfolding events is standard practice. In March 2014, Oscar Pistorius went on trial in the Gauteng High Court for murder. Hundreds of journalists present began live-tweeting coverage, an unprecedented combination of international interest, permission to use technology and access which resulted in massive streams of consciousness reports of events as they unfolded. Based on a corpus of Twitter feeds of twenty-four journalists covering the trial, this study analyses the content and strategies of these feeds in order to present an understanding of how microblogging is used as a live reporting tool. This study shows the development of standardised language and strategies in reporting on Twitter, concluding that journalists adopt a narrow range of approaches, with no significant variation in terms of gender, location, or medium. This is in contrast to earlier studies in the field (Awad, 2006, Hedman, 2015; Kothari, 2010; Lariscy, Avery, Sweetser, & Howes, 2009 Lasorsa, 2012; Lasorsa, Lewis, & Holton, 2011; Sigal, 1999, Vis, 2013).Peer reviewe

Culture and disaster risk management - stakeholder attitudes during Stakeholder Assembly in Rome, Italy

This report provides a summary of the topics discussed and the results of the CARISMAND Second Stakeholder Assembly conducted in Rome, Italy on 27-28 February 2017. In order to promote cross-sectional knowledge transfer, as in the CARISMAND First Stakeholder Assembly held in Romania in the previous year, the audience consisted of a wide range of practitioners that are typically involved in disaster management, e.g., civil protection, the emergency services, paramedics, nurses, environmental protection, Red Cross, fire-fighters, military, the police, and other non-governmental organisations. Further, these practitioners were from several regions in Italy, e.g., Rome and Lazio, Toscana, Emilia-Romagna, and Valle D’Aosta. The participants, who varied between 40 and 60, were recruited via invitations sent to various Italian organisations and institutions (at the national, regional and local levels), and via direct contacts of the Protezione Civile Comune di Firenze who are one of the Italian partners in the CARISMAND Consortium. The event consisted of a mix of presentations, working groups, and panel discussions for these participating practitioners, in order to combine dissemination with information gathering (for the detailed schedule/programme please see Appendix 1). After an initial general assembly where the CARISMAND project and its main goals were presented, the participants of the Stakeholder Assembly were split into small groups in separate breakout rooms, where over the course of the two days they discussed the following topics: 1) Working Group 1. “Culture & Risk”: Practical Experience of Cultural Aspects Disaster Communication between Practitioners and Citizens; 2) Working Group 2. “Media Culture & Disasters”: The Use of Social Media and Mobile Phone Applications in Disasters; 3) Working Groups 3. “Social Cohesion & Social Corrosion”: Cultures, Communities, and Trust. After each working group session, panel discussions allowed the participants to present the results of their working group to the rest of the audience. After each panel discussion, keynote speakers gave presentations related to the respective working group’s topic. This time schedule was designed to ensure that participants are provided with detailed information about recent developments in disaster management, e.g. related to the use of mobile phone apps and social media, but without influencing their attitudes and perceptions expressed in the working groups. The main focus of the working groups was the relationships between culture and risk/disaster communication, the role of social media and smartphone apps, and trust between citizens and disaster managers and/or authorities. These topics, and the questions discussed within each working group, were chosen: following the findings of the CARISMAND First Stakeholder Assembly held in Bucharest, in particular regarding the disconnection between citizens’ risk perception and cultural factors in disasters; 1) the results of the CARISMAND First and Second Citizen Summits held in Bucharest and Malta respectively, specifically taking up the participants’ suggestions regarding vulnerable groups and groups that are seen to be potentially helpful in disaster situations; 2) the results of Work Package 3 ‘Cultural Factors and Technologies’, in particular regarding the increasing interest in mobile phone apps compared to social media usage; 3) the literature review provided in Work Package 4 ‘Risk Perception and Risk Cultures’, particularly regarding the ambivalent of role of trust in disaster preparedness, response and recovery; 4) the preliminary findings of Work Package 7 ‘Citizens Empowerment’, in respect to community cohesion and specific opportunities for citizen empowerment; and 5) topics highlighted in Work Package 8 ‘Risk Communication and the Role of the Media in Risk Communication’ regarding disaster communication practices (particularly in connection with social media/apps usage as identified in Work Package 3 ‘Cultural Factors and Technologies’). These topics were also chosen in order to provide a sound basis for the next round of CARISMAND events (Third and Fourth CARISMAND Citizen Summits held, later, in Rome and Frankfurt in June 2017), i.e. exploring issues of risk perception and culture in the context of disasters at the very point, where practitioners and citizens interact. The location of the Second Stakeholder Assembly was selected to make use of the extensive local professional network of the Protezione Civile, but also due to Italy being a location where various “types” of hazards are prevalent, and disasters were occurred in the very recent past. All documents related to the Working Groups, i.e. discussion guidelines and consent forms, were translated into Italian. Accordingly, all presentations as well as the group discussions were held in Italian, aiming to avoid any language/education-related access restrictions, and allowing participating practitioners to respond intuitively and discuss freely in their native language. For this purpose, researchers from the Laboratory of Sciences Citizenship in Rome, one of the CARISMAND Consortium members, were used as Working Group moderators, alongside simultaneous interpreters and professional local moderators contracted via a local market research agency (RFR International), who also provided the transcripts and translations into English for all Working Group discussions. It is important to note that the discussions within these working groups reflect the participants’ perceptions and may or may not reflect the realities of how communication actually occurs in disaster situations.The project was co-funded by the European Commission within the Horizon2020 Programme (2014-2020).peer-reviewe

The Inclusion of Music Therapy in Speech-Language Interventions

The purpose of this study was to investigate the inclusion of music in speech-language therapy. One hundred practicing speech-language pathologists (SLPs) participated in the study. There was no control for geographic location, length of time as an SLP, or work setting. A questionnaire devised from the research literature that gathered demographic information and the integration of music into speech-language therapy practices was used to gather data. It was electronically distributed via social media by means of a link that remained active for approximately six weeks. Data from the questionnaire was used descriptively to answer the questions of the study. The results indicated music is used in speech therapy across a wide range of settings with a variety of disorders; that it was used more with children than with adults; and that therapists believe that music use is beneficial in their interventions

Mobile Augmented Reality and Language-Related Episodes

Applications of locative media (e.g., place‐based mobile augmented reality [AR]) are used in various educational content areas and have been shown to provide learners with valuable opportunities for investigation‐based learning, location‐situated social and collaborative interaction, and embodied experience of place (Squire, 2009; Thorne & Hellermann, 2017; Zheng et al., 2018). Mobile locative media applications’ value for language learning, however, remains underinvestigated. To address this lacuna, this study employed the widely used construct of language‐related episodes (LREs; Swain & Lapkin, 1998) as a unit of analysis to investigate language learning through participation in a mobile AR game. Analysis of videorecorded interactions of four mixed‐proficiency groups of game players (two English language learners [ELLs] and one expert speaker of English [ESE] per group) indicates that LREs in this environment were focused on lexical items relevant to the AR tasks and physical locations. Informed by sociocultural theory and conversation analysis, the microgenesis of learners’ understanding and subsequent use of certain lexical items are indicated in the findings. This understanding of new lexical items was frequently facilitated by ESEs’ assistance and the surrounding physical environment. A strong goal orientation by both ESEs and ELLs was visible, providing implications for task‐based language teaching approaches