178,673 research outputs found
Matheuristic Fixed Set Search Applied to the K-Dominating Set Problem
In a wide range of real-world covering problems, like finding the optimal locations of electric vehicle charging stations, it is of high importance to have resistance to component failures. One effective way of modeling this type of robustness is the k-dominating set problem. Solving this problem is computationally challenging due to its NP-hardness. This challenge is tackled by employing the fixed search set (FSS) metaheuristic. The Matheuristic Fixed Set Search (MFSS) is applied, which combines mathematical programming and the FSS learning mechanism. We perform extensive computational experiments on commonly used benchmark instances, comparing the algorithm's performance against the well-known GRASP metaheuristic and the commercial solver CPLEX. The experimental findings show that the proposed MFSS algorithm produces highly competitive results at a lower computational cost
Assessing the outcomes of IWMI’s research and interventions on irrigation management transfer
Irrigation management / Participatory management / Privatization / Water users associations / Farmers associations / Gender
Sultan Abdul Samad buildings Kuala Lumpur 1997
Sultan Abdul Samad Building complex, on Jalan Raja Road, Kuala Lumpur. Built in 1894-1897 to house the British colonial adminidstration, the buiodings later housed the Malaysian Federal and High courts, and in 1997 the Ministry of Information Communications and Culture
Sultan Abdul Samad Building, Kuala Lumpur 1997
Sultan Abdul Samad Building, opposite Independence Square on Jalan Raja Road, Kuala Lumpur. Built in 1894-1897 to house the British colonial administration, the buildings later housed the Malaysian Federal and High courts, and in 1997 the Ministry of Information Communications and Culture
Appropriate Similarity Measures for Author Cocitation Analysis
We provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
Both spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
Twenty one new species of Megaselia Rondani (Diptera: Phoridae) from Iran
Khameneh, Roya Namaki, Khaghaninia, Samad, Disney, R. Henry L., Maleki-Ravasan, Naseh (2019): Twenty one new species of Megaselia Rondani (Diptera: Phoridae) from Iran. Zootaxa 4711 (1): 1-50, DOI: https://doi.org/10.11646/zootaxa.4711.1.
Going Beyond Counting First Authors in Author Co-citation Analysis
The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Dicraeus beschovskii NARTSHUK 2010
Dicraeus beschovskii NARTSHUK, 2010(Figs 9, 10) M a t e r i a l e x a m i n e d: Urmia (Marmisho), 37°35.045'N, 44°38.130'E, 1353m (13), 25 May. 2014; leg. S. KHAGHANINIA. D i a g n o s t i c c h a r a c t e r s: Color black; ocellar triangle shiny black; face yellow; antenna bicolor yellow and black; postpedicel rounded; arista brown; legs black and yellow; wing dark; abdomen brown dorsally. D i s t r i b u t i o n: Greece (NARTSHUK 2010). New record species for Iran.Published as part of Khaghaninia, Samad & Namaki, Roya, 2015, Some of the grass flies (Diptera, Chloropidae) fauna of West Azarbaijan province - Iran, pp. 1573-1579 in Linzer biologische Beiträge 47 (2) on page 1576, DOI: 10.5281/zenodo.528446
Letter from R. R. Zellick, Assistant Trust Officer, Anglo California National Bank of San Francisco, to Joseph R. Goodman, October 2, 1942
Letter from R. R. Zellick, Assistant Trust Officer at The Anglo California National Bank of San Francisco, to Joseph R. Goodman, regarding property owned by Dave Tatsuno. Zellick mentions a dispute between current tenants and Tatsuno, and that Tatsuno has asked Goodman to help locate trustworthy tenants.Personal correspondence, organizational records, government documents, publications, and other papers created or collected by Joseph R. Goodman documenting the forced removal and incarceration of Japanese Americans during World War II, as well as organized resistance to incarceration. Included in the collection are records of the Japanese Young Men's Christian Association and the Japanese American Citizens' League in San Francisco, including papers of the Japanese YMCA's executive secretary Lincoln Kanai; Sakai family papers; Goodman's correspondence to and from Japanese American incarcerees, organizations opposing forced removal and incarceration of Japanese Americans, the War Relocation Authority, and others; publications, photographs, and ephemera from the Topaz Relocation Center, where Goodman taught high school; War Relocation Authority records and publications; and newspaper clippings, pamphlets, and reports about forced removal and incarceration created by various government, religious, and civic organizations, in California and nationwide
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