Evaluation of effective XML information retrieval

XML is being adopted as a common storage format in scientific data repositories, digital libraries, and on the World Wide Web. Accordingly, there is a need for content-oriented XML retrieval systems that can efficiently and effectively store, search and retrieve information from XML document collections. Unlike traditional information retrieval systems where whole documents are usually indexed and retrieved as information units, XML retrieval systems typically index and retrieve document components of varying granularity. To evaluate the effectiveness of such systems, test collections where relevance assessments are provided according to an XML-specific definition of relevance are necessary. Such test collections have been built during four rounds of the INitiative for the Evaluation of XML Retrieval (INEX). There are many different approaches to XML retrieval; most approaches either extend full-text information retrieval systems to handle XML retrieval, or use database technologies that incorporate existing XML standards to handle both XML presentation and retrieval. We present a hybrid approach to XML retrieval that combines text information retrieval features with XML-specific features found in a native XML database. Results from our experiments on the INEX 2003 and 2004 test collections demonstrate the usefulness of applying our hybrid approach to different XML retrieval tasks. A realistic definition of relevance is necessary for meaningful comparison of alternative XML retrieval approaches. The three relevance definitions used by INEX since 2002 comprise two relevance dimensions, each based on topical relevance. We perform an extensive analysis of the two INEX 2004 and 2005 relevance definitions, and show that assessors and users find them difficult to understand. We propose a new definition of relevance for XML retrieval, and demonstrate that a relevance scale based on this definition is useful for XML retrieval experiments. Finding the appropriate approach to evaluate XML retrieval effectiveness is the subject of ongoing debate within the XML information retrieval research community. We present an overview of the evaluation methodologies implemented in the current INEX metrics, which reveals that the metrics follow different assumptions and measure different XML retrieval behaviours. We propose a new evaluation metric for XML retrieval and conduct an extensive analysis of the retrieval performance of simulated runs to show what is measured. We compare the evaluation behaviour obtained with the new metric to the behaviours obtained with two of the official INEX 2005 metrics, and demonstrate that the new metric can be used to reliably evaluate XML retrieval effectiveness. To analyse the effectiveness of XML retrieval in different application scenarios, we use evaluation measures in our new metric to investigate the behaviour of XML retrieval approaches under the following two scenarios: the ad-hoc retrieval scenario, exploring the activities carried out as part of the INEX 2005 Ad-hoc track; and the multimedia retrieval scenario, exploring the activities carried out as part of the INEX 2005 Multimedia track. For both application scenarios we show that, although different values for retrieval parameters are needed to achieve the optimal performance, the desired textual or multimedia information can be effectively located using a combination of XML retrieval approaches

EXAMINING THE RELATIONSHIP BETWEEN SUPERVISORY STYLES AND COUNSELOR SKILL AND PERSONAL DEVELOPMENT PERCEIVED BY THE SUPERVISEE

This study replicates the Fernando and Hulse-Killacky (2005) study of supervisory styles and self-efficacy perceived by the supervisee. The Fernando and Hulse-Killacky study assessed general counseling students from Council for Accreditation of Counseling and Related Educa¬tional Programs (CACREP) using the Supervisory Styles Inventory (SSI; Friedlander & Ward, 1984) with a measure of self-efficacy, the Counseling Self-Estimate Inventory (COSE; Larson, Suzuki, Gillespie, Potenza, Bechtel, & Toulouse, 1992). The present study used the SSI with a population of rehabilitation practicum counseling students from Council on Rehabilitation Education (CORE) accredited master level rehabilitation counseling training (RCT) programs to assess the relationship between supervisory styles, counseling skill, and personal developmental level perceived by supervisees during supervision using the Counselor Skill and Personal Development Rating Form (CSPD-RF; Wilbur, 1991). To obtain deeper understanding of the supervisory relationship demographic information including prior counseling experience and the sex of the supervisees were collected. The results from research question (RQ) one of the current study found that the task-oriented style subscale (β = .477, p \u3e .000) was the only subscale determined to be statistically significant at an alpha level of .025. The interpersonally sensitive style (β = .173, p \u3c .323) and the attractive style (β = -.170, p \u3c .221) were not statistically significant. RQ2 results indicated that the task-oriented style (β = .390, p \u3c .000) was the only subscale statistically significant at the .025 alpha level. The interpersonally sensitive style (β = .376, p \u3e .035) and the attractive style (β = -.191, p \u3c .173) were insignificant

Review of Allied Health Education: 3

A valuable appraisal of current developments in the rapidly expanding field of allied health education is provided in these nine original articles by leaders in the field. Most of the articles examine specific areas of training—programs for emergency medical technicians, nurse practitioners, rehabilitation counselors, respiratory therapists, dietitians, and social workers. Others are focused more generally on the burgeoning field of allied health education as a whole. This series seeks, through enlightened and descriptive commentary, to help bind the health professions into a true alliance, and to guide those entering training for careers of human service. Joseph Hamburg, M.D., is dean of the College of Allied Health Professions at the University of Kentucky. Clarifies educational problems that are common to all health professions and lends immediacy to what we know but find hard to program—that the alliance of health professions increases the effectiveness of individual professions as well as the effectiveness of the entire health services field. —American Journal of Occupational Therapy Required reading for all health professionals who seek to stay current with the mainstreams of education and service in the allied health professions —Edmund D. Pellegrinohttps://uknowledge.uky.edu/upk_medicine_and_health_sciences/1003/thumbnail.jp

Special Libraries, May-June 1971

Volume 62, Issue 5-6https://scholarworks.sjsu.edu/sla_sl_1971/1004/thumbnail.jp