114,576 research outputs found
What Users Ask a Search Engine: Analyzing One Billion Russian Question Queries
We analyze the question queries submitted to a large commercial web search engine to get insights about what people ask, and to better tailor the search results to the usersâ needs. Based on a dataset of about one billion question queries submitted during the year 2012, we investigate askersâ querying behavior with the support of automatic query categorization. While the importance of question queries is likely to increase, at present they only make up 3â4% of the total search traffic. Since questions are such a small part of the query stream and are more likely to be unique than shorter queries, clickthrough information is typically rather sparse. Thus, query categorization methods based on the categories of clicked web documents do not work well for questions. As an alternative, we propose a robust question query classification method that uses the labeled questions from a large community question answering platform (CQA) as a training set. The resulting classifier is then transferred to the web search questions. Even though questions on CQA platforms tend to be different to web search questions, our categorization method proves competitive with strong baselines with respect to classification accuracy. To show the scalability of our proposed method we apply the classifiers to about one billion question queries and discuss the trade-offs between performance and accuracy that different classification models offer. Our findings reveal what people ask a search engine and also how this contrasts behavior on a CQA platform
Distributed Information Retrieval using Keyword Auctions
This report motivates the need for large-scale distributed approaches to information retrieval, and proposes solutions based on keyword auctions
Supporting Special-Purpose Health Care Models via Web Interfaces
The potential of the Web, via both the Internet and intranets, to facilitate development of clinical information systems has been evident for some time. Most Web-based clinical workstations interfaces, however, provide merely a loose collection of access channels. There are numerous examples of systems for access to either patient data or clinical guidelines, but only isolated cases where clinical decision support is presented integrally with the process of patient care, in particular, in the form of active alerts and reminders based on patient data. Moreover, pressures in the health industry are increasing the need for doctors to practice in accordance with Âżbest practiceÂż guidelines and often to operate under novel health-care arrangements. We present the Care Plan On-Line (CPOL) system, which provides intranet-based support for the SA HealthPlus Coordinated Care model for chronic disease management. We describe the interface design rationale of CPOL and its implementation framework, which is flexible and broadly applicable to support new health care models over intranets or the Internet
Exposed Online: Why the New Federal Health Privacy Regulation Doesn't Offer Much Protection to Internet Users
Provides an analysis of how the HIPAA regulation may or may not cover consumer-oriented health Web sites and Internet based health care. Comments on what new standards will be required for those sites covered by the regulation
Virtual Laboratories in Cloud Infrastructure of Educational Institutions
Modern educational institutions widely used virtual laboratories and cloud
technologies. In practice must deal with security, processing speed and other
tasks. The paper describes the experience of the construction of an
experimental stand cloud computing and network management. Models and control
principles set forth herein.Comment: 3 pages, Published in: 2014 2nd International Conference on Emission
Electronics (ICEE), Saint-Petersburg, Russi
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