OBJECTIVE: Clinical documentation is central to the medical record and so to a range of healthcare and business processes. As electronic health record adoption expands, computerized provider documentation (CPD) is increasingly the primary means of capturing clinical documentation. Previous CPD studies have focused on particular stakeholder groups and sites, often limiting their scope and conclusions. To address this, we studied multiple stakeholder groups from multiple sites across the USA. METHODS: We conducted 14 focus groups at five Department of Veterans Affairs facilities with 129 participants (54 physicians or practitioners, 34 nurses, and 37 administrators). Investigators qualitatively analyzed resultant transcripts, developed categories linked to the data, and identified emergent themes. RESULTS: Five major themes related to CPD emerged: communication and coordination; control and limitations in expressivity; information availability and reasoning support; workflow alteration and disruption; and trust and confidence concerns. The results highlight that documentation intertwines tightly with clinical and administrative workflow. Perceptions differed between the three stakeholder groups but remained consistent within groups across facilities. CONCLUSIONS: CPD has dramatically changed documentation processes, impacting clinical understanding, decision-making, and communication across multiple groups. The need for easy and rapid, yet structured and constrained, documentation often conflicts with the need for highly reliable and retrievable information to support clinical reasoning and workflows. Current CPD systems, while better than paper overall, often do not meet the needs of users, partly because they are based on an outdated 'paper-chart' paradigm. These findings should inform those implementing CPD systems now and future plans for more effective CPD systems.

We used eye-tracking equipment to observe 36 participants as they performed three search tasks using three graphically-enhanced web search interfaces (Kartoo, SearchMe and Viewzi). In this poster we describe findings of the study focusing on how the presentation of SERP results influences how the user scans and attends to the results, and the user satisfaction with these search engines.

Users frequently modify a previous search query in hope of retrieving better results. These modifications are called query reformulations or query refinements. Existing research has studied how web search engines can propose reformulations, but has given less attention to how people perform query reformulations. In this paper, we aim to better understand how web searchers refine queries and form a theoretical foundation for query reformulation. We study users' reformulation strategies in the context of the AOL query logs. We create a taxonomy of query refinement strategies and build a high precision rule-based classifier to detect each type of reformulation. Effectiveness of reformulations is measured using user click behavior. Most reformulation strategies result in some benefit to the user. Certain strategies like add/remove words, word substitution, acronym expansion, and spelling correction are more likely to cause clicks, especially on higher ranked results. In contrast, users often click the same result as their previous query or select no results when forming acronyms and reordering words. Perhaps the most surprising finding is that some reformulations are better suited to helping users when the current results are already fruitful, while other reformulations are more effective when the results are lacking. Our findings inform the design of applications that can assist searchers; examples are described in this paper.

No abstract available.

During the last few years, several studies on the characterization of the public Web space of various national domains have been published. The pages of a country are an interesting set for studying the characteristics of the Web because at the same time these are diverse (as they are written by several authors) and yet rather similar (as they share a common geographical, historical and cultural context). This article discusses the methodologies used for presenting the results of Web characterization studies, including the granularity at which different aspects are presented, and a separation of concerns between contents, links, and technologies. Based on this, we present a side-by-side comparison of the results of 12 Web characterization studies, comprising over 120 million pages from 24 countries. The comparison unveils similarities and differences between the collections and sheds light on how certain results of a single Web characterization study on a sample may be valid in the context of the full Web.

To investigate the nature of people's understandings for how search engines work, we collected data from 232 undergraduate and graduate students. Students were asked to "draw a labeled sketch of how search engines work." A reference model was constructed and each sketch was analyzed and compared against it for completeness. The paper presents preliminary results and discusses the implications for educational assessment and curriculum design on the one hand, and information system design on the other.

Article Free Access Share on The effect of query type on subject searching behavior of image databases (poster session): an exploratory study Authors: Efthimis N. Efthimiadis School of Library & Information Science, University of Washington, Box 352930, Seattle, WA School of Library & Information Science, University of Washington, Box 352930, Seattle, WAView Profile , Raya Fidel School of Library & Information Science, University of Washington, Box 352930, Seattle, WA School of Library & Information Science, University of Washington, Box 352930, Seattle, WAView Profile Authors Info & Claims SIGIR '00: Proceedings of the 23rd annual international ACM SIGIR conference on Research and development in information retrievalJuly 2000Pages 328–330https://doi.org/10.1145/345508.345625Published:01 July 2000Publication History 6citation17DownloadsMetricsTotal Citations6Total Downloads17Last 12 Months3Last 6 weeks0 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my AlertsNew Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteeReaderPDF

A user-centered investigation of interactive query expansion within the context of a relevance feedback system is presented in this article. Data were collected from 25 searches using the INSPEC database. The data collection mechanisms included questionnaires, transaction logs, and relevance evaluations. The results discuss issues that relate to query expansion, retrieval effectiveness, the correspondence of the on-line-to-off-line relevance judgments, and the selection of terms for query expansion by users (interactive query expansion). The main conclusions drawn from the results of the study are that: (1) one-third of the terms presented to users in a list of candidate terms for query expansion was identified by the users as potentially useful for query expansion. (2) These terms were mainly judged as either variant expressions (synonyms) or alternative (related) terms to the initial query terms. However, a substantial portion of the selected terms were identified as representing new ideas. (3) The relationships identified between the five best terms selected by the users for query expansion and the initial query terms were that: (a) 34% of the query expansion terms have no relationship or other type of correspondence with a query term; (b) 66% of the remaining query expansion terms have a relationship to the query terms. These relationships were: narrower term (46%), broader term (3%), related term (17%). (4) The results provide evidence for the effectiveness of interactive query expansion. The initial search produced on average three highly relevant documents; the query expansion search produced on average nine further highly relevant documents. The conclusions highlight the need for more research on: interactive query expansion, the comparative evaluation of automatic vs. interactive query expansion, the study of weighted Web-based or Web-accessible retrieval systems in operational environments, and for user studies in searching ranked retrieval systems in general.

No abstract available.

No abstract available.

The evaluation of 6 ranking algorithms for the ranking of terms for query expansion is discussed within the context of an investigation of interactive query expansion and relevance feedback in a real operational environment. The yardstick for the evaluation was provided by the user relevance judgements on the lists of the candidate terms for query expansion. The evaluation focuses on the similarities in the performance of the different algorithms and how the algorithms with similar performance treat terms.

Online Public Access Catalogues (OPACs), despite their recent arrival in the library and information science world, have had a great impact because they have to be designed for the library user. In the few years of their existence the body of literature created cannot be regarded as insignificant. The analysis of the 1970–1985 OPAC literature shows that it could be a very good example of logistic growth. The literature had an initial growth rate of b = .556 (or 74.4% per year), with a corresponding doubling time of 1.25 years, which was probably due to the prolific CLR study. Then, approximate point of inflection in 1984, it started levelling off. © 1990 John Wiley & Sons, Inc.