Showing 21 results for Evaluation
Faeze Delghandi, Ghasem Azadi Ahmadabadi,
Volume 1, Issue 2 (7-2014)
Abstract
Background and Aim: Interaction in a digital library help users locating and accessing information and also assist them in creating knowledge, better perception, problem solving and recognition of dimension of resources. This paper tries to identify and introduce the components and elements that are used in interaction between user and system in search and retrieval of information in digital library.
Method: This paper investigate the different studies in the field of interactive search of digital library by the library approach and also identifies capabilities that can be used in digital library by the use of heuristic methods.
Results: The components of identified, interactive search including: 1. Interaction before search including using directories, applying ontology, and filtering. 2. Interaction in the time of search including annotation, suggesting the interactive terms by the use of subjective thesaurus. Syndicate list, colon searching, filtering. Interaction after search: motion, fragment, copying, collecting, cutting, segmentation, probing, rearrangement, re illustration, searching, visualization based on graph, personalization and recommendation systems.
Conclusion: With perception of interaction and interactive search, the efficient design and evaluation of digital library can be done. The designers of digital libraries can use different interaction according their resources. Librarian also can familiar with different interaction and would be able to give their users necessary education until they can search and retrieval efficiently.
Zeinab Sedighi, Alireza Isfandyari-Moghaddam, Atefeh Zarei,
Volume 3, Issue 2 (9-2016)
Abstract
Purpose: Digital library user interfaces has a determining role in desirable performance of this kind of libraries. Digital Library service providers to the blind and deaf users will have their best performance when the users (deaf and blind users) could have a proper interaction with them. This study aims to evaluate and analyze the criteria related to user interface in digital libraries service provider to the blind and deaf users in the world.
Methodology: This is an applied and evaluative study. This study has been used library research method for extracting criteria and descriptive survey method for everything from evaluating library. A checklist consist of 13 criteria (Screen capabilities, Ability of organizing the screen, Search facilities, Links, Visual symbols and images, Options for customizing the texts, Help services and Tips, Error message alert, Interaction and feedback facilities, user interface Language, User controls, Library resources in various format, Study facilities of retrieved resources from the library) and 109 component is prepared. Then have been finalized by using the Delphi method and completed for each Library. 12 digital library service providers to blind and deaf user in the world perform the population.
Finding: Results of the study showed that the criteria of '' user interface language '' (with 97.92 %) and the criteria of '' user control'' (with 9.67 %) reached the highest and lowest scores respectively. Among the 12 digital libraries investigated worldwide, "Digital library for the blind" with respect 63.53 reached the maximum and "U.S. National Library Service for Blind" with respect 37.62 grasped the minimum levels.
Hamid Keshavarz, Fatemeh Fahimnia, Alireza Nouruzi, Mohammadreza Esmaeili Givi,
Volume 3, Issue 3 (12-2016)
Abstract
Background and Aim: The current research aims to develop a literature-dependent and expert-modified model related to credibility evaluation of web information.
Methods: Regarding the approach, mixed method would be utilized. The research method then is mixed-heuristic using both qualitative and quantitative methodologies. In the first stage of the research, meta- synthesis was used as a qualitative research method. Secondly, exploring experts’ points of view was conducted by a Delphi method to develop the conceptual model identified in the first stage.
Results: Using the seven stage mode of meta-synthesis, a model was designed in four layers including concepts, categories, codes and indicators. A set of 68 indicators were incorporated into the different layers of the model. For reliability testing of the conceptual mopdel, a Delphi study was conducted in two rounds after which the comments of the experst were included into the model. Regarding the high degree of Kendall’s coeficinet of concordance about %.65 and the agreement perecentage of the most dimensions of the model higher than %90 the conceptual model was confirmed by the sample experts.
Conclusion: The conceptual model derived from the meta-synthesis and Delphi studies is a model accepted by experts and a base for future research to design some tools for related studies. The findings showed that the credibility evaluation is a concept whith different and multiple dimensions and components suitable for users, designers and policymakers to take them into consideration in design and evaluation of web resources.
Mohsen Nowkarizi, Mr Mahdi Zeinali,
Volume 4, Issue 3 (12-2017)
Abstract
Background and Aim: The aim of this study was to measure the overlap of 4 local Persian search engines of Parsijoo, Yooz, Parseek, and Rismoun and to compare the capabilities of these engines in covering indexable web.
Methods: This was an applied and evaluative research. To collect data, a keyword-based method was used. First, the selected keywords were entered into the search engines and then a sample was extracted of the retrieved records. Finally, based on the existence or absence of these records in the search engines, the necessary data were gathered. Accordingly to analyze the data, inferential statistical methods were used.
Results: The relative overlap of the Parseek compared to that of Parsijoo and Parsijoo's one compared to Yooz was 26 percent on average and Parseek had the most recall. Rismoun had not any common records with the other investigated search engines. Three search engines (Parseekc, Parsijoo and Yooz retrieved 27 common records out of 225 recalled records; there was a significant difference between the relative overlap of the 4 search engines. Also, on average, Parseel, Parsigoo, Yooz and Rismoun covered respectively 38, 31, 26, and 6 percent of the indexable web. There was a significant difference between the coverage of the 4 search engines.
Conclusion: It seems that each search engine has a different indexing policy, and users need to search for more than one search engine to get comprehensive information about an issue. It can be predicted that by foraging in two search engines, Parseek and Parsijoo, one may access 70 percent of the indexable web.
Hashem Atapour, Fatima Fahimnia,
Volume 5, Issue 1 (6-2018)
Abstract
Background and Aim: this research investigates the impact of authors’ rank in Bibliographic networks on document-centered model of Expertise Retrieval. Its purpose is to find out what kind of authors’ ranking in bibliographic networks can improve the performance of document-centered model.
Methodology: Current research is an experimental one. To operationalize research goals, a new test collection was developed which includes 55 queries and 96375 documents. The queries were made by Iran Knowledge and Information Science PhD students, and the documents were papers indexed in the Web of Science database under Library Science and Information Science category. The queries were submitted to the database consisting of test collection documents, and then DLH13, a known IR model, were used to retrieve documents from database. The first 100 documents retrieved by DLH13 model for each query were chosen for second stage. All people names occurred in the retrieved documents were extracted, processed, and ranked in 5 different ways based on micro metrics of Social Network Analysis. The top 10 results of every method accumulated in a pool of authors. After relevance judgment on authors’ expertise, the expert finding performance of every ranking method was measured.
Findings: Results showed that performance of authors’ ranking in citation networks hadn’t significant difference with document-centered model, whereas authors’ ranking in co-authorship networks was weaker than document-centered model, and impact it negatively.
Conclusion: compared with author-based networks, citation-based networks are better evidence for individual’s expertise in different subject areas.
Fatemeh Zandian, Leyla Fathi, Mohammad Hasanzadeh,
Volume 5, Issue 2 (9-2018)
Abstract
Background and Objectives: Today, websites with diverse and varied uses have revolutionized all social, scientific, educational, artistic, commercial, and other fields of thought. In the mea 
