8,070 research outputs found
Digital Food Marketing to Children and Adolescents: Problematic Practices and Policy Interventions
Examines trends in digital marketing to youth that uses "immersive" techniques, social media, behavioral profiling, location targeting and mobile marketing, and neuroscience methods. Recommends principles for regulating inappropriate advertising to youth
Computational Sociolinguistics: A Survey
Language is a social phenomenon and variation is inherent to its social
nature. Recently, there has been a surge of interest within the computational
linguistics (CL) community in the social dimension of language. In this article
we present a survey of the emerging field of "Computational Sociolinguistics"
that reflects this increased interest. We aim to provide a comprehensive
overview of CL research on sociolinguistic themes, featuring topics such as the
relation between language and social identity, language use in social
interaction and multilingual communication. Moreover, we demonstrate the
potential for synergy between the research communities involved, by showing how
the large-scale data-driven methods that are widely used in CL can complement
existing sociolinguistic studies, and how sociolinguistics can inform and
challenge the methods and assumptions employed in CL studies. We hope to convey
the possible benefits of a closer collaboration between the two communities and
conclude with a discussion of open challenges.Comment: To appear in Computational Linguistics. Accepted for publication:
18th February, 201
On the discovery of social roles in large scale social systems
The social role of a participant in a social system is a label
conceptualizing the circumstances under which she interacts within it. They may
be used as a theoretical tool that explains why and how users participate in an
online social system. Social role analysis also serves practical purposes, such
as reducing the structure of complex systems to rela- tionships among roles
rather than alters, and enabling a comparison of social systems that emerge in
similar contexts. This article presents a data-driven approach for the
discovery of social roles in large scale social systems. Motivated by an
analysis of the present art, the method discovers roles by the conditional
triad censuses of user ego-networks, which is a promising tool because they
capture the degree to which basic social forces push upon a user to interact
with others. Clusters of censuses, inferred from samples of large scale network
carefully chosen to preserve local structural prop- erties, define the social
roles. The promise of the method is demonstrated by discussing and discovering
the roles that emerge in both Facebook and Wikipedia. The article con- cludes
with a discussion of the challenges and future opportunities in the discovery
of social roles in large social systems
CoSyn: Detecting Implicit Hate Speech in Online Conversations Using a Context Synergized Hyperbolic Network
The tremendous growth of social media users interacting in online
conversations has also led to significant growth in hate speech. Most of the
prior works focus on detecting explicit hate speech, which is overt and
leverages hateful phrases, with very little work focusing on detecting hate
speech that is implicit or denotes hatred through indirect or coded language.
In this paper, we present CoSyn, a user- and conversational-context synergized
network for detecting implicit hate speech in online conversation trees. CoSyn
first models the user's personal historical and social context using a novel
hyperbolic Fourier attention mechanism and hyperbolic graph convolution
network. Next, we jointly model the user's personal context and the
conversational context using a novel context interaction mechanism in the
hyperbolic space that clearly captures the interplay between the two and makes
independent assessments on the amounts of information to be retrieved from both
contexts. CoSyn performs all operations in the hyperbolic space to account for
the scale-free dynamics of social media. We demonstrate the effectiveness of
CoSyn both qualitatively and quantitatively on an open-source hate speech
dataset with Twitter conversations and show that CoSyn outperforms all our
baselines in detecting implicit hate speech with absolute improvements in the
range of 8.15% - 19.50%.Comment: Under review at IJCAI 202
An Introduction to Social Semantic Web Mining & Big Data Analytics for Political Attitudes and Mentalities Research
The social web has become a major repository of social and behavioral data that is of exceptional interest to the social science and humanities research community. Computer science has only recently developed various technologies and techniques that allow for harvesting, organizing and analyzing such data and provide knowledge and insights into the structure and behavior or people on-line. Some of these techniques include social web mining, conceptual and social network analysis and modeling, tag clouds, topic maps, folksonomies, complex network visualizations, modeling of processes on networks, agent based models of social network emergence, speech recognition, computer vision, natural language processing, opinion mining and sentiment analysis, recommender systems, user profiling and semantic wikis. All of these techniques are briefly introduced, example studies are given and ideas as well as possible directions in the field of political attitudes and mentalities are given. In the end challenges for future studies are discussed
e-Business challenges and directions: important themes from the first ICE-B workshop
A three-day asynchronous, interactive workshop was held at ICE-B’10 in Piraeus, Greece in July of 2010. This event captured conference themes for e-Business challenges and directions across four subject areas: a) e-Business applications and models, b) enterprise engineering, c) mobility, d) business collaboration and e-Services, and e) technology platforms. Quality Function Deployment (QFD) methods were used to gather, organize and evaluate themes and their ratings. This paper summarizes the most important themes rated by participants: a) Since technology is becoming more economic and social in nature, more agile and context-based application develop methods are needed. b) Enterprise engineering approaches are needed to support the design of systems that can evolve with changing stakeholder needs. c) The digital native groundswell requires changes to business models, operations, and systems to support Prosumers. d) Intelligence and interoperability are needed to address Prosumer activity and their highly customized product purchases. e) Technology platforms must rapidly and correctly adapt, provide widespread offerings and scale appropriately, in the context of changing situational contexts
When Large Language Model based Agent Meets User Behavior Analysis: A Novel User Simulation Paradigm
User behavior analysis is crucial in human-centered AI applications. In this
field, the collection of sufficient and high-quality user behavior data has
always been a fundamental yet challenging problem. An intuitive idea to address
this problem is automatically simulating the user behaviors. However, due to
the subjective and complex nature of human cognitive processes, reliably
simulating the user behavior is difficult. Recently, large language models
(LLM) have obtained remarkable successes, showing great potential to achieve
human-like intelligence. We argue that these models present significant
opportunities for reliable user simulation, and have the potential to
revolutionize traditional study paradigms in user behavior analysis. In this
paper, we take recommender system as an example to explore the potential of
using LLM for user simulation. Specifically, we regard each user as an
LLM-based autonomous agent, and let different agents freely communicate, behave
and evolve in a virtual simulator called RecAgent. For comprehensively
simulation, we not only consider the behaviors within the recommender system
(\emph{e.g.}, item browsing and clicking), but also accounts for external
influential factors, such as, friend chatting and social advertisement. Our
simulator contains at most 1000 agents, and each agent is composed of a
profiling module, a memory module and an action module, enabling it to behave
consistently, reasonably and reliably. In addition, to more flexibly operate
our simulator, we also design two global functions including real-human playing
and system intervention. To evaluate the effectiveness of our simulator, we
conduct extensive experiments from both agent and system perspectives. In order
to advance this direction, we have released our project at
{https://github.com/RUC-GSAI/YuLan-Rec}.Comment: 26 pages, 9 figure
- …