294,755 research outputs found
EveTAR: Building a Large-Scale Multi-Task Test Collection over Arabic Tweets
This article introduces a new language-independent approach for creating a
large-scale high-quality test collection of tweets that supports multiple
information retrieval (IR) tasks without running a shared-task campaign. The
adopted approach (demonstrated over Arabic tweets) designs the collection
around significant (i.e., popular) events, which enables the development of
topics that represent frequent information needs of Twitter users for which
rich content exists. That inherently facilitates the support of multiple tasks
that generally revolve around events, namely event detection, ad-hoc search,
timeline generation, and real-time summarization. The key highlights of the
approach include diversifying the judgment pool via interactive search and
multiple manually-crafted queries per topic, collecting high-quality
annotations via crowd-workers for relevancy and in-house annotators for
novelty, filtering out low-agreement topics and inaccessible tweets, and
providing multiple subsets of the collection for better availability. Applying
our methodology on Arabic tweets resulted in EveTAR , the first
freely-available tweet test collection for multiple IR tasks. EveTAR includes a
crawl of 355M Arabic tweets and covers 50 significant events for which about
62K tweets were judged with substantial average inter-annotator agreement
(Kappa value of 0.71). We demonstrate the usability of EveTAR by evaluating
existing algorithms in the respective tasks. Results indicate that the new
collection can support reliable ranking of IR systems that is comparable to
similar TREC collections, while providing strong baseline results for future
studies over Arabic tweets
Effectiveness of Corporate Social Media Activities to Increase Relational Outcomes
This study applies social media analytics to investigate the impact of different corporate social media activities on user word of mouth and attitudinal loyalty. We conduct a multilevel analysis of approximately 5 million tweets regarding the main Twitter accounts of 28 large global companies. We empirically identify different social media activities in terms of social media management strategies (using social media management tools or the web-frontend client), account types (broadcasting or receiving information), and communicative approaches (conversational or disseminative). We find positive effects of social media management tools, broadcasting accounts, and conversational communication on public perception
Evaluation Strategy for the Re-Development of the Displays and Visitor Facilities at the Museum and Art Gallery, Kelvingrove
No abstract available
Complete LibTech 2013 Print Program
PDF of the complete print program from the 2013 Library Technology Conferenc
Application of Web 2.0 technologies in e-government: A United Kingdom case study
Electronic government (e-Government) has
endured significant transformation over the last decade and currently, it is making further leaps by incorporating modern technologies such as second generation web (Web 2.0) technologies. However, since the development and use of this kind of technology is still at its early stages in the public sector, research about the use of Web 2.0 in this domain is still highly tentative and lacks theoretical underpinning. This paper reports the preliminary findings of an in-depth case study in the United Kingdom (UK) public sector, which explore the application of Web 2.0 technologies in the local government authority (LGA). The findings elicited from the case study offer an insight into information systems (IS) evaluation criterions and impact factors of Web 2.0 from both a practical setting and an internal organisational perspective. This paper concludes that a combined analysis of the evaluation and impact factors rather than a singular approach would better assist the decision making process that leads to effective application of Web 2.0 technologies. It also highlights the significant impact and perceived effect of adoption of such technologies
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