Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “Information Retrieval Systems”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 19 recordsLinked to original sources
PubMed2001

Empirical formulation of a generic query set for clinical information retrieval systems.

Information needs in clinical practice take the form of specific questions about a given clinical situation, and are best satisfied by concise and specific information retrieval. We sought to develop a comprehensive set of generic queries for information retrieval from electronic medical information resources. We collected one hundred and ten real-world questions asked at the point of care in a variety of settings, and from these developed a set of generic queries of which each of the real-world queries could be shown to be a special case. To provide allowed values for each of the concept terms in the queries, we defined generic nouns as unions of UMLS semantic types, and specified which of these were appropriate to each query. We have begun to use the set to index reference texts from general and subspecialty medicine, and found it capable of full text indexing in the clinical domain. We hypothesize that the query set can serve as a basis for more specialized query sets, and that it will remain generalizable to other electronic medical resources, indexing tasks, and non-UMLS controlled vocabularies.

Abstracting and Indexing↗
PubMed2005

Personalized Health Information Retrieval System.

Consumers face barriers when seeking health information on the Internet. A Personalized Health Information Retrieval System (PHIRS) is proposed to recommend health information for consumers. The system consists of four modules: (1) User modeling module captures user inverted exclamation mark s preference and health interests; (2) Automatic quality filtering module identifies high quality health information; (3) Automatic text difficulty rating module classifies health information into professional or patient educational materials; and (4) User profile matching module tailors health information for individuals. The initial results show that PHIRS could assist consumers with simple search strategies.

Health Education↗
PubMed1989

Medicaid program; Medicaid management information system: revised definition of "mechanized claims processing and information retrieval system"--HCFA. Final rule with comment period.

We are making a number of revisions to regulations concerning mechanized claims processing and information retrieval systems ("system" or "systems"). We are revising definitions to show that we will not make available Federal funding at 75 and 90 percent of State Medicaid agency expenditures for eligibility determination systems because they do not meet the definition of a "mechanized claims processing and information retrieval system" or of an enhancement to that system. We are also conforming our regulations to changes made by section 9503(b)(2) and 9518 of the Consolidated Omnibus Budget Reconciliation Act (COBRA) of 1985 (Pub. L. 99-272), which involve technical changes. One change affects the frequency and scope of our system reviews, and the other involves the date by which States that are not exempt by law must have an operating system.

Centers for Medicare and Medicaid Services, U.S.↗
PubMed1987

Evaluation of three manual drug information retrieval systems for investigational antineoplastic drugs.

The manual drug information retrieval systems, de Haen's Drugs in Use, Iowa Drug Information Service (IDIS), and International Pharmaceutical Abstracts (IPA), were evaluated to determine their usefulness as sources of drug information for investigational antineoplastic drugs during the years 1980-81. During both years, de Haen's provided the greatest number of antineoplastic drug citations, IPA the least. Concerning qualitative analysis, (the ability of the information systems to provide citations in seven subject areas for the five drugs), IDIS was found to have the greatest overall utility and was statistically different from IPA in many subject areas. IPA provided few citations in the seven subject areas for the five drugs. On pairwise analysis, no differences emerged between IDIS and de Haen's. Commonly available manual drug information retrieval systems such as IDIS and de Haen's appear to be useful sources of information for investigational antineoplastic drugs.

Antineoplastic Agents↗
PubMed2005

Do online information retrieval systems help experienced clinicians answer clinical questions?

OBJECTIVE: To assess the impact of clinicians' use of an online information retrieval system on their performance in answering clinical questions. DESIGN: Pre-/post-intervention experimental design. MEASUREMENTS: In a computer laboratory, 75 clinicians (26 hospital-based doctors, 18 family practitioners, and 31 clinical nurse consultants) provided 600 answers to eight clinical scenarios before and after the use of an online information retrieval system. We examined the proportion of correct answers pre- and post-intervention, direction of change in answers, and differences between professional groups. RESULTS: System use resulted in a 21% improvement in clinicians' answers, from 29% (95% confidence interval [CI] 25.4-32.6) correct pre- to 50% (95% CI 46.0-54.0) post-system use. In 33% (95% CI 29.1-36.9) answers were changed from incorrect to correct. In 21% (95% CI 17.1-23.9) correct pre-test answers were supported by evidence found using the system, and in 7% (95% CI 4.9-9.1) correct pre-test answers were changed incorrectly. For 40% (35.4-43.6) of scenarios, incorrect pre-test answers were not rectified following system use. Despite significant differences in professional groups' pre-test scores [family practitioners: 41% (95% CI 33.0-49.0), hospital doctors: 35% (95% CI 28.5-41.2), and clinical nurse consultants: 17% (95% CI 12.3-21.7; chi(2) = 29.0, df = 2, p < 0.01)], there was no difference in post-test scores. (chi(2) = 2.6, df = 2, p = 0.73). CONCLUSIONS: The use of an online information retrieval system was associated with a significant improvement in the quality of answers provided by clinicians to typical clinical problems. In a small proportion of cases, use of the system produced errors. While there was variation in the performance of clinical groups when answering questions unaided, performance did not differ significantly following system use. Online information retrieval systems can be an effective tool in improving the accuracy of clinicians' answers to clinical questions.

Clinical Competence↗
PubMed1976

[Information-retrieval system for pathomorphological studies of neoplastic diseases].

The information retrieval system of studying the operative oncological material, realized on manual punch cards, is suggested. Coding and decoding of signs is accomplished by means of a descriptive dictionary. The latter comprises 18 coded signs. The method of making a list of descriptors is given. A brief technic of handling a code card is presented.

Information Systems↗
PubMed2005

Relevance similarity: an alternative means to monitor information retrieval systems.

BACKGROUND: Relevance assessment is a major problem in the evaluation of information retrieval systems. The work presented here introduces a new parameter, "Relevance Similarity", for the measurement of the variation of relevance assessment. In a situation where individual assessment can be compared with a gold standard, this parameter is used to study the effect of such variation on the performance of a medical information retrieval system. In such a setting, Relevance Similarity is the ratio of assessors who rank a given document same as the gold standard over the total number of assessors in the group. METHODS: The study was carried out on a collection of Critically Appraised Topics (CATs). Twelve volunteers were divided into two groups of people according to their domain knowledge. They assessed the relevance of retrieved topics obtained by querying a meta-search engine with ten keywords related to medical science. Their assessments were compared to the gold standard assessment, and Relevance Similarities were calculated as the ratio of positive concordance with the gold standard for each topic. RESULTS: The similarity comparison among groups showed that a higher degree of agreements exists among evaluators with more subject knowledge. The performance of the retrieval system was not significantly different as a result of the variations in relevance assessment in this particular query set. CONCLUSION: In assessment situations where evaluators can be compared to a gold standard, Relevance Similarity provides an alternative evaluation technique to the commonly used kappa scores, which may give paradoxically low scores in highly biased situations such as document repositories containing large quantities of relevant data.

Journal Article↗
PubMed1986

GENEUS, a computer system for DNA and protein sequence analysis containing an information retrieval system for the EMBL data library.

We describe a comprehensive computer system, GENEUS, for extensive DNA, RNA and protein sequence analysis. The analysis system is developed for the DEC VAX/VMS computer and uses the EMBL Nucleic Acid Sequence Data Library. Help information is available on-line on terminal screen. To speed up system handling, a qualifier oriented user communication is employed. All results are stored on files making them accessible to the computer editor. An information retrieval system for the EMBL Nucleotide Sequence Data Library is also described. A defined data-base interface allows connection to other analysis programs.+

Amino Acid Sequence↗
PubMedDate not supplied

[Automated information retrieval system of the trauma physician].

The traumatologist's automatic information retrieval system (TAIRS) is a package of programmes and a database, which are implemented on the basis of informational models of mechanical and thermal injuries of the locomotor apparatus and hyperreactive adaptation syndromes in posttraumatic emergencies. TAIRS envisages operation in the following areas: 1) topometameric classification of locomotor mechanical injuries and recommendations on their treatment; 2) tabular models of hyperreactive adaptation syndromes and ways of their correction in posttraumatic emergencies; 3) terminological and eponymic glossaries.

Adaptation, Physiological↗
PubMed1990

[Experience using the automated information retrieval system "Biopsy" in the pathology department of a general hospital].

Automatic information retrieval system (AIRS) "Biopsy" has been created on the basis of original programs and personal computer and tested for 3 years in the activity of the pathology department of a big multidisciplinary hospital. AIRS considerably increases the level of the labour organization and facilitates the overall and routine analysis of both biopsy material and the work of a department.

Biopsy↗
PubMed2003

Information retrieval system for Japanese Standard Disease-code Master Using XML Web Service.

Information retrieval system of Japanese Standard Disease-Code Master Using XML Web Service is developed. XML Web Service is a new distributed processing system by standard internet technologies. With seamless remote method invocation of XML Web Service, users are able to get the latest disease code master information from their rich desktop applications or internet web sites, which refer to this service.

Disease↗
PubMed2000

Factors associated with successful answering of clinical questions using an information retrieval system.

OBJECTIVES: Despite the growing use of online databases by clinicians, there has been very little research documenting how effectively they are used. This study assessed the ability of medical and nurse-practitioner students to answer clinical questions using an information retrieval system. It also attempted to identify the demographic, experience, cognitive, personality, search mechanics, and user-satisfaction factors associated with successful use of a retrieval system. METHODS: Twenty-nine students completed questionnaires of clinical and computer experience as well as tests of cognitive abilities and personality type. They were then administered three clinical questions to answer in a medical library setting using the MEDLINE database and electronic and print full-text resources. RESULTS: Medical students were able to answer more questions correctly than nurse-practitioner students before and after searching, but both had comparable improvements in the number of correct questions before and after searching. Successful ability to answer questions was also associated with having experience in literature searching and higher standardized test-score percentiles. CONCLUSIONS: Medical and nurse-practitioner students obtained comparable benefits in the ability to answer clinical questions from use of the information retrieval system. Future research must examine strategies that improve successful search and retrieval of clinical questions posed by clinicians in practice.

Adult↗
PubMed2004

Web-based information retrieval system for the prediction of metabolic pathways.

Analysis of metabolic pathways is a central topic in understanding the relationship between genotype and phenotype. The rapid accumulation of biological data provides the possibility of studying metabolic pathways both at the genomic and metabolic levels. Our motivation is to develop a conceptual framework and computational system that will allow retrieval of metabolic information and prediction of metabolic pathways. In this paper, we introduce a metabolic pathway prediction framework that extracts metabolic information from biological databases via the Internet, and builds metabolic pathways with data sources of genes, sequences, enzymes, metabolites, etc. It provides an easy-to-use interface to retrieve, display, and manipulate metabolic information. The system has been implemented into PathAligner, available at http://bibiserv.techfak.uni-bielefeld. de/pathaligner/.

Computer Simulation↗
PubMed1992

[A data bank for the "Disaster Medicine" automated information retrieval system].

The article substantiate the necessity to improve the automatization of the information process in the system of medical support in extreme situations and thus to liquidate the disproportion between the medico-diagnostical and information accumulation storage facilities. These facts clearly define the importance of work which is being carried out by Medical Service towards an elaboration of the "Disaster Medicine" automated information retrieval system (AIRS). The data obtained as a result of AIRS processing could be directly used for reference or prediction purposes.

Databases, Factual↗