Journal articles on the topic 'Benchmark analysi'
To see the other types of publications on this topic, follow the link: Benchmark analysi.
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 50 journal articles for your research on the topic 'Benchmark analysi.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.
1
Gökçe, Özge, and Veysel Harun Şahin. "ABench2020: A WCET Benchmark Suite in Ada Programming Language." Academic Perspective Procedia 3, no. 1 (October 25, 2020): 509–18. http://dx.doi.org/10.33793/acperpro.03.01.99.
Full textAbstract:
Validation is an important part of the development process of real-time systems. During validation, it should be proved that, the system meets its timing constraints. Therefore, worst-case execution time (WCET) analysis is performed. Currently, several WCET analysis tools are being developed. Researchers who develop new WCET analysis tools, need benchmarks to evaluate and compare their tools with alternatives. These benchmarks are called WCET benchmarks. In this paper a new WCET benchmark suite named ABench2020 is introduced. Its main focus is to provide benchmark programs in Ada programming language for WCET research. Therefore, ABench2020 includes several benchmark programs which were written in Ada programming language. The benchmark programs implement different program structures and properties to help researchers test their systems from different aspects. ABench2020 was published as open source. It is freely available over the Internet.
2
LU, WEN-MIN, and SHIU-WAN HUNG. "BENCHMARKING THE OPERATING EFFICIENCY OF GLOBAL TELECOMMUNICATION FIRMS." International Journal of Information Technology & Decision Making 07, no. 04 (December 2008): 737–50. http://dx.doi.org/10.1142/s0219622008003149.
Full textAbstract:
The rapid development of modern information technology has led to fierce competition in today's telecommunication industry. Telecommunication firms' accountability demands that operating efficiency be measured, maximized, and benchmarked. This study proposes an alternative context-dependent data envelopment analysis (DEA) technique to explore the managerial performance and the benchmarks of 24 global leading telecom operators. The analysis measures the relative attractiveness and progress of global telecom operators on a specific performance level against operators exhibiting poorer and/or better performance. The set operators are grouped into different levels of efficiency frontiers. Each efficiency frontier on a specific performance level is then used as an evaluation context for the relative attractiveness and progress. The performance of the efficient telecoms changes as the inefficient telecoms change their performance. It is shown that the context-dependent DEA can be used to differentiate and benchmark the performance of efficient DMUs. These benchmarks may give a first guideline for performance improvement of global telecommunication operators.
3
Ayers, Benjamin C., John (Xuefeng) Jiang, and P. Eric Yeung. "Discretionary Accruals and Earnings Management: An Analysis of Pseudo Earnings Targets." Accounting Review 81, no. 3 (May 1, 2006): 617–52. http://dx.doi.org/10.2308/accr.2006.81.3.617.
Full textAbstract:
We investigate whether the positive associations between discretionary accrual proxies and beating earnings benchmarks hold for comparisons of groups segregated at other points in the distributions of earnings, earnings changes, and analystsbased unexpected earnings. We refer to these points as “pseudo” targets. Results suggest that the positive association between discretionary accruals and beating the profit benchmark extends to pseudo targets throughout the earnings distribution. We find similar results for the earnings change distribution. In contrast, we find few positive associations between discretionary accruals and beating pseudo targets derived from analysts-based unexpected earnings. We develop an additional analysis that accounts for the systematic association between discretionary accruals and earnings and earnings changes. Results suggest that the positive association between discretionary accruals and earnings intensifies around the actual profit benchmark (i.e., where earnings management incentives may be more pronounced). We find similar effects around the actual earnings increase benchmark. However, analogous patterns exist for cash flows around the profit and earnings increase benchmarks. In sum, we are unable to eliminate other plausible explanations for the associations between discretionary accruals and beating the profit and earnings increase benchmarks.
4
Yasir, Maryam A., and Yossra H. Ali. "Comparative Analysis of Background Subtraction Models Applied on a Local Dataset Using a New Approach for Ground-truth Generation." International Journal of Recent Contributions from Engineering, Science & IT (iJES) 10, no. 03 (November 4, 2022): 49–62. http://dx.doi.org/10.3991/ijes.v10i03.34317.
Full textAbstract:
Abstract— Background subtraction is the dominant approach in the domain of moving object detection. Lots of research have been done to design or improve background subtraction models. However, there is a few well known and state of the art models which applied as a benchmark. Generally, these models are applied on different dataset benchmarks. Most of the time Choosing appropriate dataset is challenging due to the lack of datasets availability and the tedious process of creating the ground-truth frames for the sake of quantitative evaluation.
Therefore, in this article we collected local video scenes for street and river taken by stationary camera focusing on dynamic background challenge. We presented a new technique for creating ground-truth frames using modelling, composing, tracking, and rendering each frame. Eventually we applied nine promising benchmark algorithms used in this domain on our local dataset. Results obtained by quantitative evaluations exposed the effectiveness of our new technique for generating the ground-truth scenes to be benchmarked with the original scenes using number of statistical metrics. Furthermore, results shows the outperformance of SuBSENSE model against other tested models.
5
Drexler, Richard, Roman Rotermund, Timothy Smith, John Kilgallon, Jürgen Honegger, Isabella Nasi-Kordhishti, Paul Gardner, et al. "QLTI-09. DEFINING GLOBAL BENCHMARK OUTCOMES FOR TRANSSPHENOIDAL SURGERY OF PITUITARY ADENOMAS: A MULTICENTER ANALYSIS OF 2862 CASES." Neuro-Oncology 24, Supplement_7 (November 1, 2022): vii236. http://dx.doi.org/10.1093/neuonc/noac209.911.
Full textAbstract:
Abstract Benchmarks are important to measure and aid in improve outcomes for surgical procedures. However, best achievable results that have been validated internationally for transsphenoidal surgery are not available. Therefore, we aimed to establish robust, standardized outcome benchmarks for transsphenoidal surgery of pituitary adenomas. A total of 2862 transsphenoidal tumor resections from 12 high-volume centers in 4 continents were analyzed. Patients were risk stratified and the median values of each center’s outcomes were established. The outcome benchmark was defined as the 75th percentile of all median values for a particular outcome as defined by Staiger et al. Out of 2862 patients, 1201 (41.9%) defined the benchmark cohort. The proportion of benchmark cases contributing to the final cohort ranged across centers between 22.1% to 59.7%. Within the benchmark cases, 928 (73.3%) patients underwent microscopic (MTS) and 263 (21.9%) patients endoscopic endonasal resection (EES). The overall postoperative complication rate was 18.9% with an in-hospital mortality between 0.0-0.8%. Benchmark cutoffs were ≤ 3.3% for reoperation rate, ≤ 4.6% for cerebrospinal fluid leak requiring intervention, and ≤ 15.3% for transient diabetes insipidus. At 6 months follow-up, benchmark cutoffs were calculated as follows: readmission rate: ≤ 7.1%, new hypopituitarism ≤ 15.5%, new neurological deficit ≤ 1.2%, tumor remnant ≤ 25.5%. This analysis defines benchmark values for transsphenoidal resection of pituitary adenomas targeting morbidity, mortality, surgical and tumor-related outcomes. The benchmark cutoffs can be used to assess different centers, patients’ populations, and novel surgical techniques.
6
Honcharenko, Kostiantyn, and Jakub Smołka. "Analysis of the development Android’s runtime." Journal of Computer Sciences Institute 12 (September 30, 2019): 246–51. http://dx.doi.org/10.35784/jcsi.504.
Full textAbstract:
The article presents the development of the Android runtime. Own application for Android is presented, which implements performance benchmarks used to test different versions of the Android runtime. The methods measure the benchmark execution times in different versions of the Android runtime environment.
7
PETROLITO, J., and K. A. LEGGE. "NONLINEAR ANALYSIS OF FRAMES INCLUDING SHEAR DEFORMATION." International Journal of Structural Stability and Dynamics 06, no. 02 (June 2006): 179–92. http://dx.doi.org/10.1142/s0219455406001903.
Full textAbstract:
In this paper, we consider the nonlinear analysis of frames with shear deformation, and present a series of benchmark solutions for a variety of problems and modelling assumptions. The benchmarks enable users and developers of nonlinear analysis software to test the accuracy of their procedures when including shear deformation.
8
Issa, Joseph. "Performance and power analysis for high performance computation benchmarks." Open Computer Science 3, no. 1 (January 1, 2013): 1–16. http://dx.doi.org/10.2478/s13537-013-0101-5.
Full textAbstract:
AbstractPerformance and power consumption analysis and characterization for computational benchmarks is important for processor designers and benchmark developers. In this paper, we characterize and analyze different High Performance Computing workloads. We analyze benchmarks characteristics and behavior on various processors and propose a performance estimation analytical model to predict performance for different processor microarchitecture parameters. Performance model is verified to predict performance within <5% error margin between estimated and measured data for different processors. We also propose a power estimation analytical model to estimate power consumption with low error deviation.
9
Welling, Sebastian, and Sven-Olof Ryding. "Distribution of environmental performance in life cycle assessments—implications for environmental benchmarking." International Journal of Life Cycle Assessment 26, no. 2 (January 25, 2021): 275–89. http://dx.doi.org/10.1007/s11367-020-01852-3.
Full textAbstract:
Abstract Purpose Life cycle assessment (LCA) is considered a robust method to analyse the environmental impacts of products and is used in public and private market applications such as Green Public Procurement (GPP) and Environmental Management Systems (EMS). Despite the usefulness of the methodology, difficulties exist with the interpretation of LCA results. The use of benchmarks can facilitate this process, but there is yet little research on the definition of environmental benchmarks. The aim of this paper is to analyse the distribution of environmental performance used for the definition of the benchmark and how it effects the use in selected product categories. Method LCA results from 54 Environmental Product Declarations (EPDs) for insulation materials and 49 EPDs for bakery products are tested for their distribution. The outcome from the statistical analysis is used to compare and evaluate three calculation methods for a benchmark. Results and discussion The results of the study show that distributions and mid- and end-points of environmental performances of the studied indicators differ significantly for the two product categories. While some indicators for bakery products were closer to a normal distribution, most of the indicators are not normally distributed. This is reflected in the comparison of the chosen calculation methods for a benchmark, which showed that the distribution of the data affects the classification of the benchmark as well as the position of values on the benchmark. Conclusion The results emphasise that analysis of further product groups and the associated distribution of the environmental performance is needed to understand the implications of calculation methods on a benchmark. The availability of comparatively large datasets in a common structure is crucial for these analyses and can be facilitated through the digitalisation of LCA- and EPD-information. Furthermore, more research is needed on the communication formats for different benchmarking options, which must be applied for the different intended audiences to be effective.
10
Harmon, Thomas C., Robyn L. Smyth, Sudeep Chandra, Daniel Conde, Ramesh Dhungel, Jaime Escobar, Natalia Hoyos, et al. "Socioeconomic and Environmental Proxies for Comparing Freshwater Ecosystem Service Threats across International Sites: A Diagnostic Approach." Water 10, no. 11 (November 4, 2018): 1578. http://dx.doi.org/10.3390/w10111578.
Full textAbstract:
In this work, we develop and test proxy-based diagnostic tools for comparing freshwater ecosystem services (FWES) risks across an international array of freshwater ecosystems. FWES threats are increasing rapidly under pressure from population, climate change, pollution, land use change, and other factors. We identified spatially explicit FWES threats estimates (referred to as threat benchmarks) and extracted watershed-specific values for an array of aquatic ecosystems in the Western Hemisphere (Ramsar sites). We compared these benchmark values to values extracted for sites associated with an international FWES threat investigation. The resulting benchmark threats appeared to provide a meaningful context for the diagnostic assessment of study site selection by revealing gaps in coverage of the underlying socio-environmental problem. In an effort to simplify the method, we tested regularly updated environmental and socioeconomic metrics as potential proxies for the benchmark threats using regression analysis. Three category proxies, aggregated from (i) external (global to regional, climate-related), (ii) internal (watershed management-related), and (iii) socioeconomic and governance related proxies produced strong relationships with water supply threat benchmarks, but only weak relationships with biodiversity-related and nutrient regulation benchmark threats. Our results demonstrate the utility of advancing global FWES status and threat benchmarks for organizing coordinated research efforts and prioritizing decisions with regard to international socio-environmental problems.
11
Diacogiannis, George, and David Feldman. "Linear Beta Pricing with Inefficient Benchmarks." Quarterly Journal of Finance 03, no. 01 (March 2013): 1350004. http://dx.doi.org/10.1142/s2010139213500043.
Full textAbstract:
Current asset pricing models require mean-variance efficient benchmarks, which are generally unavailable because of partial securitization and free float restrictions. We provide a pricing model that uses inefficient benchmarks, a two-beta model, one induced by the benchmark and one adjusting for its inefficiency. While efficient benchmarks induce zero-beta portfolios of the same expected return, any inefficient benchmark induces infinitely many zero-beta portfolios at all expected returns. These make market risk premiums empirically unidentifiable and explain empirically found dead betas and negative market risk premiums. We characterize other misspecifications that arise when using inefficient benchmarks with models that require efficient ones. We provide a space geometry description and analysis of the specifications and misspecifications. We enhance Roll (1980), Roll and Ross's (1994), and Kandel and Stambaugh's (1995) results by offering a "Two Fund Theorem," and by showing the existence of strict theoretical "zero relations" everywhere inside the portfolio frontier.
12
Peng Hong, Liem, Pinem Surian, Sembiring Tagor Malem, and Nam Tran Hoai. "Status on development and verification of reactivity initiated accident analysis code for PWR (NODAL3)." Nuclear Science and Technology 6, no. 1 (September 24, 2021): 1–13. http://dx.doi.org/10.53747/jnst.v6i1.139.
Full textAbstract:
A coupled neutronics thermal-hydraulics code NODAL3 has been developed based on the nodal few-group neutron diffusion theory in 3-dimensional Cartesian geometry for a typical pressurized water reactor (PWR) static and transient analyses, especially for reactivity initiated accidents (RIA).The spatial variables are treated by using a polynomial nodal method (PNM) while for the neutron dynamic solver the adiabatic and improved quasi-static methods are adopted. A simple single channel thermal-hydraulics module and its steam table is implemented into the code. Verification works on static and transient benchmarks are being conducted to assess the accuracy of the code. For the static benchmark verification, the IAEA-2D, IAEA-3D, BIBLIS and KOEBERG light water reactor (LWR) benchmark problems were selected, while for the transient benchmark verification, the OECD NEACRP 3-D LWR Core Transient Benchmark and NEA-NSC 3-D/1-D PWR Core Transient Benchmark (Uncontrolled Withdrawal of Control Rods at Zero Power). Excellent agreement of the NODAL3 results with the reference solutions and other validated nodal codes was confirmed
13
Kopa, Milos, Kristina Sutiene, Audrius Kabasinskas, Ausrine Lakstutiene, and Aidas Malakauskas. "Dominance Tracking Index for Measuring Pension Fund Performance with Respect to the Benchmark." Sustainability 14, no. 15 (August 3, 2022): 9532. http://dx.doi.org/10.3390/su14159532.
Full textAbstract:
This paper focuses on the performance of Lithuanian life-cycle second-pillar pension funds. Every such fund first specifies its benchmark and then attempts to follow the benchmark in some way. This is a form of regulation, meaning that every such fund is somehow regulated and controlled by the central bank authorities. The goal of this paper is twofold: (i) to analyse the returns of the pension funds with respect to their benchmarks and (ii) to determine whether less strict regulation leads to a better outperformance of the fund with respect to the benchmark. In order to achieve this, we introduced a new performance measure called the dominance-tracking index, which combines the ideas of almost stochastic dominance relations and tracking errors. While the tracking error and its modifications measure the strength of the regulation, almost stochastic dominance provides information about preferences between the funds and their benchmarks. Therefore, the new index was constructed in such a way as to take into account both approaches. The empirical section of the study then presents the results separately for the considered pension managers and participants’ age groups as usual in the life-cycle pension funds analysis. Finally, by taking into account various periods, we studied the effects of the COVID-19 crisis.
14
Klauck, Michaela, Marcel Steinmetz, Jörg Hoffmann, and Holger Hermanns. "Bridging the Gap Between Probabilistic Model Checking and Probabilistic Planning: Survey, Compilations, and Empirical Comparison." Journal of Artificial Intelligence Research 68 (May 19, 2020): 247–310. http://dx.doi.org/10.1613/jair.1.11595.
Full textAbstract:
Markov decision processes are of major interest in the planning community as well as in the model checking community. But in spite of the similarity in the considered formal models, the development of new techniques and methods happened largely independently in both communities. This work is intended as a beginning to unite the two research branches. We consider goal-reachability analysis as a common basis between both communities. The core of this paper is the translation from Jani, an overarching input language for quantitative model checkers, into the probabilistic planning domain definition language (PPDDL), and vice versa from PPDDL into Jani. These translations allow the creation of an overarching benchmark collection, including existing case studies from the model checking community, as well as benchmarks from the international probabilistic planning competitions (IPPC). We use this benchmark set as a basis for an extensive empirical comparison of various approaches from the model checking community, variants of value iteration, and MDP heuristic search algorithms developed by the AI planning community. On a per benchmark domain basis, techniques from one community can achieve state-ofthe-art performance in benchmarks of the other community. Across all benchmark domains of one community, the performance comparison is however in favor of the solvers and algorithms of that particular community. Reasons are the design of the benchmarks, as well as tool-related limitations. Our translation methods and benchmark collection foster crossfertilization between both communities, pointing out specific opportunities for widening the scope of solvers to different kinds of models, as well as for exchanging and adopting algorithms across communities.
15
Shabani, Amir, and Reza Farzipoor Saen. "Developing a novel data envelopment analysis model to determine prospective benchmarks of green supply chain in the presence of dual-role factor." Benchmarking: An International Journal 22, no. 4 (May 5, 2015): 711–30. http://dx.doi.org/10.1108/bij-12-2012-0087.
Full textAbstract:
Purpose – The purpose of this paper is to develop a model based on data envelopment analysis (DEA) and program evaluation and review technique/critical path method (PERT/CPM) for determining prospective benchmarks. Design/methodology/approach – The idea of determining prospective benchmark is needed for developing a model for future planning where inputs and outputs of systems are influenced by external factors such as economic conditions, demographic changes, and other socio-economic factors. In this paper, the PERT/CPM method estimates prospective inputs and outputs. On the other hand, in particular systems some measures play the role of both input and output. Such factors in DEA literature are called dual-role factors. This paper integrates PERT/CPM technique and the DEA. Findings – The results of the proposed model depict that a present benchmark may not be a benchmark in future. A numerical example validates the proposed model. Originality/value – This paper, for the first time, applies the PERT/CPM technique to incorporate the ideas for identifying prospective benchmarks. Moreover, the proposed model is an alternative solution for classifying inputs and outputs in DEA. Also, the proposed model is utilized in benchmarking green supply chain management.
16
Weaver, GracieLee M., Daniel L. Bibeau, Kelly Rulison, Jeremy Bray, William N. Dudley, and Nilay Unsal. "Tracking Changes in US Organizations’ Workplace Health Promotion Initiatives: A Longitudinal Analysis of Performance Against Quality Benchmarks." American Journal of Health Promotion 34, no. 2 (October 23, 2019): 142–49. http://dx.doi.org/10.1177/0890117119883581.
Full textAbstract:
Purpose: To examine changes in organizations’ workplace health promotion (WHP) initiatives over time associated with repeated self-assessment using the Well Workplace Checklist (WWC). Design: Well Workplace Checklist data include a convenience sample of US organizations that selected to assess their performance against quality WHP benchmarks. Setting: Workplaces. Subjects: In total, 577 US organizations completed the WWC in 2 or more years from 2008 to 2015. Measures: The WWC is a 100-item organizational assessment that measures performance against the original set of quality benchmarks that were established by the Wellness Council of America (WELCOA). Analysis: This study examined changes in overall WWC scores as well as 7 separate benchmark scores. Multilevel modeling was used to examine changes in scores associated with repeated assessments, controlling for the year of assessment and organizational characteristics. Results: There were significant increases in overall WWC scores (β = 2.93, P < .001) associated with the repeated WWC assessments, after controlling for organizational characteristics. All 7 benchmark scores had significant increases associated with reassessment. Compared to other benchmarks, operating plan (β = 6.18, P < .001) and evaluation (β = 4.91, P < .001) scores increased more with each reassessment. Conclusion: Continued reassessment may represent more commitment to and investment in WHP initiatives which could lead to improved quality. Other factors that may positively influence changes in performance against benchmarks include company size, access to outside resources for WHP, and a history with implementing WHP.
17
Zamazal, Ondřej. "A Survey of Ontology Benchmarks for Semantic Web Ontology Tools." International Journal on Semantic Web and Information Systems 16, no. 1 (January 2020): 47–68. http://dx.doi.org/10.4018/ijswis.2020010103.
Full textAbstract:
Software engineering employs different benchmarks for a software evaluation. This enables software developers to continuously improve their product. The same needs are intrinsic for software tools in the semantic web field. While there are many different benchmarks already available, there has not been their overview and categorization yet. This work provides such an overview and categorization of benchmarks specifically oriented on benchmarks where an ontology plays an important role. Benchmarks are naturally categorized in line with ontology tool categorization along with an indication which activities those benchmarks are deliberate and which are non-deliberative. Although the article itself can already navigate a reader to an adequate benchmark, we moreover automatically designed a flexible rule-based recommendation tool based on the analysis of existing benchmarks.
18
Jordanoska, Aleksandra, and Nicholas Lord. "Scripting the mechanics of the benchmark manipulation corporate scandals: The ‘guardian’ paradox." European Journal of Criminology 17, no. 1 (July 12, 2019): 9–30. http://dx.doi.org/10.1177/1477370819850124.
Full textAbstract:
This article implements a crime script analysis to understand the procedural dynamics of corporate benchmark-rigging in the financial services industry. In 2012 several global banks were implicated in the manipulation of various trading benchmarks, portraying the industry as affected by serious, pervasive and ‘organized’ corporate crimes. Yet their dynamics have been relatively little studied by criminologists. To address this gap, we analyse official enforcement documentation, supplemented with data from interviews with key informants in the UK financial markets. We analyse the range of interactions between the relevant actors, their actions and the resources essential to the manipulations, and deconstruct the benchmark manipulations into four scenes (calculated positioning and identification of co-collaborators; recruitment; (ephemeral) manipulation; recompense and solicitation). The analysis reveals that regulatory and organizational systems play a paradoxical role of both ‘capable guardians’ and ‘facilitators of misconduct’; this has implications for criminological theory.
19
Egberts, Jan-Hendrik, Jan-Niclas Kersebaum, Benno Mann, Heiko Aselmann, Markus Hirschburger, Julia Graß, Thomas Becker, Jakob Izbicki, and Daniel Perez. "Defining benchmarks for robotic-assisted low anterior rectum resection in low-morbid patients: a multicenter analysis." International Journal of Colorectal Disease 36, no. 9 (July 9, 2021): 1945–53. http://dx.doi.org/10.1007/s00384-021-03988-6.
Full textAbstract:
Abstract Purpose To define the best possible outcomes for robotic-assisted low anterior rectum resection (RLAR) using total mesorectal excision (TME) in low-morbid patients, performed by expert robotic surgeons in German robotic centers. The benchmark values were derived from these results. Methods The data was retrospectively collected from five German expert centers. After patient exclusion (prior surgery, extended surgery, no prior anastomosis, hand-sewn anastomosis), the benchmark cohort was defined (n = 226). The median with interquartile range was first calculated for the individual centers. The 75th percentile of the median results was defined as the benchmark cutoff and represents the “perfect” achievable outcome. This applied to all benchmark values apart from lymph node yield, where the cutoff was defined as the 25th percentile (more lymph nodes are better). Results The benchmark values for conversion and intraoperative complication rates were ≤ 4.0% and ≤ 1.4%, respectively. For postoperative complications, the benchmark was ≤ 28% for “any” and ≤ 18.0% for major complications. The R0 and complete TME rate benchmarks were both 100%, with a lymph node yield of > 18. The benchmark for rate of anastomotic insufficiency was < 12.5% and 90-day mortality was 0%. Readmission rates should not exceed 4%. Conclusion This outcome analysis of patients with low comorbidity undergoing RLAR may serve as a reference to evaluate surgical performance in robotic rectum resection.
20
Saavedra, Rafael H., and Alan J. Smith. "Analysis of benchmark characteristics and benchmark performance prediction." ACM Transactions on Computer Systems 14, no. 4 (November 1996): 344–84. http://dx.doi.org/10.1145/235543.235545.
Full text
21
Lapochkina, V. V., V. N. Dolgova, Yu O. Orshanskaya, and I. N. Shkilev. "Assessing the risk of benchmark and additional indicators of the Science national project." National Interests: Priorities and Security 16, no. 12 (December 15, 2020): 2338–62. http://dx.doi.org/10.24891/ni.16.12.2338.
Full textAbstract:
Subject. National projects are the main vehicle of strategic national governance, including science. However, some planned indicators of national projects are not always feasible due to the uncertainty of external and internal developments, thus requiring adjustments to the national projects per se. Objectives. We evaluate to what extent the Science National Project is exposed to the risk of benchmarks. It is important as the surrounding environment changes and influences indicators of strategic program documents, thereby urging to revise activities, volume of finance and benchmark of national projects. Methods. We applied methods of analysis, generalization, grouping. Computations are based on statistical and mathematical methods. We reviewed scientific publications analyzing the risk exposure, risk assessment methods as part of project management. Subsequently, we devised and tested our own technique for assessing the risk of national projects’ indicators with two methods. Results. We provide forecasted and planned values of benchmark and additional indicators of the Science National Project. The article presents the assessment of the risk of the above indicators for purposes of the project, and predicts to what extent the benchmark indicators may be attained or not attained. Conclusions and Relevance. Following the assessment of the risk of benchmarks of the Science National Project, we discovered that the risk level (medium, low, high) is different for all indicators. The proposed risk assessment techniques allow to comprehensively evaluate benchmarks. The findings can be used by executive authorities and respective experts to predict the attainment of national projects' benchmarks.
22
Vidovic, Aleksandra. "Benchmark-Instrument for Controlling as a Function of Higher Education-Comparative Analysis in Bosnia and Herzegovina." Journal of Business Theory and Practice 6, no. 1 (January 25, 2018): 30. http://dx.doi.org/10.22158/jbtp.v6n1p30.
Full textAbstract:
<em>Object of research is such that it is necessary to ask why even conducted “benchmark” in higher education? Analysis and comparison of the organizational units within the company itself, but also with the competition, will help in understanding the success factors, determining the problem areas of the subject and knowledge of roads to improve the current situation. Use that provides quality made “benchmark” be located in the recognition requirements of consumers, establish effective goals, development of accurate indicators of production, improve competitiveness, and the installation of the best business process. I would say that benchmark contributes to determining the best way carry out a satisfied customer, cost-efficient collection of creative ideas, knowledge of own strengths and weaknesses, and supporting process improvement of continuing action. Therefore, all the work put in relation to the Higher Education Benchmarks.</em>
23
Mohammadi, Shirin, S. Morteza Mirdehghan, and Gholamreza Jahanshahloo. "Finding the Most Preferred Decision-Making Unit in Data Envelopment Analysis." Advances in Operations Research 2016 (2016): 1–8. http://dx.doi.org/10.1155/2016/7171467.
Full textAbstract:
Data envelopment analysis (DEA) evaluates the efficiency of the transformation of a decision-making unit’s (DMU’s) inputs into its outputs. Finding the benchmarks of a DMU is one of the important purposes of DEA. The benchmarks of a DMU in DEA are obtained by solving some linear programming models. Currently, the obtained benchmarks are just found by using the information of the data of inputs and outputs without considering the decision-maker’s preferences. If the preferences of the decision-maker are available, it is very important to obtain the most preferred DMU as a benchmark of the under-assessment DMU. In this regard, we present an algorithm to find the most preferred DMU based on the utility function of decision-maker’s preferences by exploring some properties on that. The proposed method is constructed based on the projection of the gradient of the utility function on the production possibility set’s frontier.
24
Stiehm, Michael, Christoph Brandt-Wunderlich, Stefan Siewert, Klaus-Peter Schmitz, Niels Grabow, Leonid Goubergrits, Titus Kühne, Eric K. W. Poon, Andrew Ooi, and Peter Barlis. "Sensitivity analysis of FDA´s benchmark nozzle regarding in vitro imperfections - Do we need asymmetric CFD benchmarks?" Current Directions in Biomedical Engineering 6, no. 3 (September 1, 2020): 78–81. http://dx.doi.org/10.1515/cdbme-2020-3020.
Full textAbstract:
AbstractModern technologies and methods such as computer simulation, so-called in silico methods, foster the development of medical devices. For accelerating the uptake of computer simulations and to increase credibility and reliability the U.S. Food and Drug Administration organized an inter-laboratory round robin study of a generic nozzle geometry. In preparation of own bench testing experiment using Particle Image Velocimetry, a custom made silicone nozzle was manufactured. By using in silico computational fluid dynamics method the influence of in vitro imperfections, such as inflow variations and geometrical deviations, on the flow field were evaluated. Based on literature the throat Reynolds number was varied Rethroat = 500 ± 50. It could be shown that the flow field errors resulted from variations of inlet conditions can be largely eliminated by normalizing if the Reynolds number is known. Furthermore, a symmetric imperfection of the silicone model within manufacturing tolerance does not affect the flow as much as an asymmetric failure such as an unintended curvature of the nozzle. In brief, we can conclude that geometrical imperfection of the reference experiment should be considered accordingly to in silico modelling. The question arises, if an asymmetric benchmark for biofluid analysis needs to be established. An eccentric nozzle benchmark could be a suitable case and will be further investigated.
25
Xiao, Jing, Hong-Fei Ren, and Xiao-Ke Xu. "Constructing Real-Life Benchmarks for Community Detection by Rewiring Edges." Complexity 2020 (April 7, 2020): 1–16. http://dx.doi.org/10.1155/2020/7096230.
Full textAbstract:
In order to make the performance evaluation of community detection algorithms more accurate and deepen our analysis of community structures and functional characteristics of real-life networks, a new benchmark constructing method is designed from the perspective of directly rewiring edges in a real-life network instead of building a model. Based on the method, two kinds of novel benchmarks with special functions are proposed. The first kind can accurately approximate the microscale and mesoscale structural characteristics of the original network, providing ideal proxies for real-life networks and helping to realize performance analysis of community detection algorithms when a real network varies characteristics at multiple scales. The second kind is able to independently vary the community intensity in each generated benchmark and make the robustness evaluation of community detection algorithms more accurate. Experimental results prove the effectiveness and superiority of our proposed method. It enables more real-life networks to be used to construct benchmarks and helps to deepen our analysis of community structures and functional characteristics of real-life networks.
26
Kjeldsen, Erik K. M. "Sport Management Careers: A Descriptive Analysis." Journal of Sport Management 4, no. 2 (July 1990): 121–32. http://dx.doi.org/10.1123/jsm.4.2.121.
Full textAbstract:
This study utilized alumni of one sport management graduate program in an effort to investigate career paths in sport management. A representative sample of 126 alumni was selected from a population of 251 students who had graduated over a 10-year period. A total of 69 usable returns were received, for a response rate of 54.8%. Specific points during the professional, preparation period and during the working career were examined as benchmarks in the career path. The number of alumni maintaining jobs in the field at each benchmark shed light on career retention and on the factors contributing to attrition. The five benchmarks selected were entry into the graduate program, exit from the program, the internship, first job, and final job. Salary at each job level and satisfaction were measured in an effort to better understand the nature of a sport management career. The analysis was differentiated by sex and by the various subfields in the sport management profession.
27
Piegorsch, Walter W. "Translational benchmark risk analysis." Journal of Risk Research 13, no. 5 (March 26, 2010): 653–67. http://dx.doi.org/10.1080/13669870903551662.
Full text
28
Sunil Sunny, C., D. K. Mohapatra, P. Mohanakrishnan, and K. V. Subbaiah. "KAMINI reactor benchmark analysis." Annals of Nuclear Energy 35, no. 4 (April 2008): 570–75. http://dx.doi.org/10.1016/j.anucene.2007.08.016.
Full text
29
Fang, Q., W. W. Piegorsch, and K. Y. Barnes. "Bayesian benchmark dose analysis." Environmetrics 26, no. 5 (March 31, 2015): 373–82. http://dx.doi.org/10.1002/env.2339.
Full text
30
de Goede, Marieke, Bert Enserink, Ignaz Worm, and Jan Peter van der Hoek. "Drivers for performance improvement originating from the Dutch drinking water benchmark." Water Policy 18, no. 5 (March 30, 2016): 1247–66. http://dx.doi.org/10.2166/wp.2016.125.
Full textAbstract:
The Dutch drinking water sector has been benchmarked every 3 years since 1997, and the sector has significantly improved performance since then. Based on interviews with CEOs and financial managers of drinking water companies five drivers for improvement as a result of this benchmark are identified: ‘learning effect’, ‘enhanced transparency’, ‘managed competition’, ‘avoidance of negative consequences' and ‘personal honour of director’. Different developments have caused stagnation of further improvement: the variation on the benchmarked performance indicators has decreased, participation in the benchmark became mandatory for all Dutch drinking water supply organizations, it lacks a focus on the future, and participating organizations experience high financial pressure. These developments decrease the influence of the drivers. Four possible new impulses for the benchmark are identified and their influence on the effect of the drivers is analysed. The two most promising new impulses are to make the benchmark adaptive and to involve consumers in the process of benchmarking, both have a positive influence on the effect of almost all drivers. This study contributes to the understanding of how benchmarking leads to improvement and to the analysis of the impact of design choices, leading to well-founded decisions for re-design of the Dutch drinking water benchmark.
31
Li, Weidong, and Olli-Pekka Hilmola. "Belt and Road Initiative and Railway Sector Efficiency—Application of Networked Benchmarking Analysis." Sustainability 11, no. 7 (April 8, 2019): 2070. http://dx.doi.org/10.3390/su11072070.
Full textAbstract:
In recent years, there has been a lot of attention paid to China’s Belt and Road Initiative (BRI), which aims to invest in better connecting China, South-East Asia, Central Asia, the Middle East and Europe. As countries that share the same continent, and are in many cases without proper sea connection (landlocked), the key mode of long-distance transportation is railways. However, numerous countries have different levels of past investments, labor productivity, transportation profile, and culture surrounding railways, and all of this leads to differences in overall efficiency. In this research, we apply well established and widely used data envelopment analysis (DEA) to evaluate the longitudinal efficiency of railway operations. This is the first time such an analysis is completed on the Belt and Road member countries. Efficiency itself hardly improved at all during the examination period, whether in passenger and freight or just freight transports. China itself represents an important benchmark for many countries, as its efficiency is all the time highest possible. In the network benchmarking analysis, it was shown that China, Estonia, Latvia, and Israel are often proposed benchmarks for the others to increase their efficiency in the future. From efficiency development perspective, Chinese railway sector is beneficial and more balanced to be benchmarked as compared to other significantly sized railway countries, like India or Russia.
32
Hiscox, Briana, Benjamin Betzler, Vladimir Sobes, and William J. Marshall. "NEUTRONIC BENCHMARKING OF SMALL GAS-COOLED SYSTEMS." EPJ Web of Conferences 247 (2021): 10033. http://dx.doi.org/10.1051/epjconf/202124710033.
Full textAbstract:
To demonstrate that nuclear reactors can be built faster and more economically than they have been in the past, the US Department of Energy Office of Nuclear Energy is sponsoring the development of a small nuclear reactor called the Transformational Challenge Reactor (TCR) [1–2]. An important part of the design and licencing process of a new reactor is validation of the software used to analyze the reactor using established reactor physics benchmarks. This paper discusses validation of the neutronics software used to model four preliminary designs of the TCR core [2]. Because the TCR core design uses innovative technology and methods, comparable established benchmarks are limited or do not exist. For this effort, established benchmarks from the International Handbook of Evaluated Criticality Safety Benchmark Experiments (ICSBEP) [3] were considered to be suitable for this design based on analysis using the SCALE/TSUNAMI-computed similarity indices to determine the amount of shared uncertainty between the design and each selected benchmark experiment. This paper addresses the challenges faced in benchmarking a unique reactor for licensing and construction, a task that will become more common as a new generation of innovative nuclear reactors are designed and built.
33
Ellero, Andrea, and Paola Pellegrini. "Computer Language Effciency via Data Envelopment Analysis." Advances in Operations Research 2011 (2011): 1–14. http://dx.doi.org/10.1155/2011/154516.
Full textAbstract:
The selection of the computer language to adopt is usually driven by intuition and expertise, since it is very diffcult to compare languages taking into account all their characteristics. In this paper, we analyze the effciency of programming languages through Data Envelopment Analysis. We collected the input data fromThe Computer Language Benchmarks Game: we consider a large set of languages in terms of computational time, memory usage, and source code size. Various benchmark problems are tackled. We analyze the results first of all considering programming languages individually. Then, we evaluate families of them sharing some characteristics, for example, being compiled or interpreted.
34
Rubin, Allen, Micki Washburn, and Christine Schieszler. "Within-Group Effect-Size Benchmarks for Trauma-Focused Cognitive Behavioral Therapy With Children and Adolescents." Research on Social Work Practice 27, no. 7 (January 7, 2016): 789–801. http://dx.doi.org/10.1177/1049731515620016.
Full textAbstract:
Purpose: This article provides benchmark data on within-group effect sizes from published randomized clinical trials (RCTs) supporting the efficacy of trauma-focused cognitive behavioral therapy (TF-CBT) for traumatized children. Methods: Within-group effect-size benchmarks for symptoms of trauma, anxiety, and depression were calculated via the Glass approach and adjusted for sample size using Hedges’ g. Results: Overall TF-CBT and control group benchmarks are presented, as well as specific benchmarks for sexual abuse and mixed trauma, and whether included studies utilized intent-to-treat analysis. Discussion: Community practitioners can use these benchmarks as a comparison tool to evaluate whether the way they are adopting or adapting the TF-CBT intervention is satisfactory, needs to be modified, or should be replaced by a different intervention approach. These benchmarks also have potential utility for future implementation research on TF-CBT assessing which service provision conditions are associated with effect sizes approximating benchmarks provided in this article.
35
Shuaiwen Song, Rong Ge, Xizhou Feng, and Kirk W. Cameron. "Energy Profiling and Analysis of the HPC Challenge Benchmarks." International Journal of High Performance Computing Applications 23, no. 3 (June 5, 2009): 265–76. http://dx.doi.org/10.1177/1094342009106193.
Full textAbstract:
Future high performance systems must use energy efficiently to achieve petaFLOPS computational speeds and beyond. To address this challenge, we must first understand the power and energy characteristics of high performance computing applications. In this paper, we use a power-performance profiling framework called Power-Pack to study the power and energy profiles of the HPC Challenge benchmarks. We present detailed experimental results along with in-depth analysis of how each benchmark's workload characteristics affect power consumption and energy efficiency. This paper summarizes various findings using the HPC Challenge benchmarks, including but not limited to: 1) identifying application power profiles by function and component in a high performance cluster; 2) correlating applications' memory access patterns to power consumption for these benchmarks; and 3) exploring how energy consumption scales with system size and workload.
36
Sarwar, Abid. "Analysis of Machine Learning and Statistics Tool Box Matlab R2016 over Novel Benchmark Cervical Cancer Database." International Journal of Trend in Scientific Research and Development Volume-2, Issue-1 (December 31, 2017): 619–22. http://dx.doi.org/10.31142/ijtsrd7048.
Full text
37
Orogat, Abdelghny, Isabelle Liu, and Ahmed El-Roby. "CBench." Proceedings of the VLDB Endowment 14, no. 8 (April 2021): 1325–37. http://dx.doi.org/10.14778/3457390.3457398.
Full textAbstract:
Recently, there has been an increase in the number of knowledge graphs that can be only queried by experts. However, describing questions using structured queries is not straightforward for non-expert users who need to have sufficient knowledge about both the vocabulary and the structure of the queried knowledge graph, as well as the syntax of the structured query language used to describe the user's information needs. The most popular approach introduced to overcome the aforementioned challenges is to use natural language to query these knowledge graphs. Although several question answering benchmarks can be used to evaluate question-answering systems over a number of popular knowledge graphs, choosing a benchmark to accurately assess the quality of a question answering system is a challenging task. In this paper, we introduce CBench, an extensible, and more informative benchmarking suite for analyzing benchmarks and evaluating question answering systems. CBench can be used to analyze existing benchmarks with respect to several fine-grained linguistic, syntactic, and structural properties of the questions and queries in the benchmark. We show that existing benchmarks vary significantly with respect to these properties deeming choosing a small subset of them unreliable in evaluating QA systems. Until further research improves the quality and comprehensiveness of benchmarks, CBench can be used to facilitate this evaluation using a set of popular benchmarks that can be augmented with other user-provided benchmarks. CBench not only evaluates a question answering system based on popular single-number metrics but also gives a detailed analysis of the linguistic, syntactic, and structural properties of answered and unanswered questions to better help the developers of question answering systems to better understand where their system excels and where it struggles.
38
Rubin, Allen, and Miao Yu. "Within-Group Effect-Size Benchmarks for Problem-Solving Therapy for Depression in Adults." Research on Social Work Practice 27, no. 5 (July 6, 2015): 552–60. http://dx.doi.org/10.1177/1049731515592477.
Full textAbstract:
This article provides benchmark data on within-group effect sizes from published randomized clinical trials that supported the efficacy of problem-solving therapy (PST) for depression among adults. Benchmarks are broken down by type of depression (major or minor), type of outcome measure (interview or self-report scale), whether PST was provided to elderly participants in poor health, and whether an intent-to-treat analysis was conducted. Practitioners can compare these benchmarks to their effect size in providing PST with depressed clients as a basis for deciding whether the way they are adopting or adapting this intervention is satisfactory or needs to be modified or replaced by a different intervention approach. These benchmarks also have potential utility for future implementation research on PST for depression.
39
Orogat, Abdelghny, and Ahmed El-Roby. "CBench." Proceedings of the VLDB Endowment 14, no. 12 (July 2021): 2711–14. http://dx.doi.org/10.14778/3476311.3476326.
Full textAbstract:
A plethora of question answering (QA) systems that retrieve answers to natural language questions from knowledge graphs have been developed in recent years. However, choosing a benchmark to accurately assess the quality of a question answering system is a challenging task due to the high degree of variations among the available benchmarks with respect to their fine-grained properties. In this demonstration, we introduce CBench, an extensible, and more informative benchmarking suite for analyzing benchmarks and evaluating QA systems. CBench can be used to analyze existing benchmarks with respect to several fine-grained linguistic, syntactic, and structural properties of the questions and queries in the benchmarks. Moreover, CBench can be used to facilitate the evaluation of QA systems using a set of popular benchmarks that can be augmented with other user-provided benchmarks. CBench not only evaluates a QA system based on popular single-number metrics but also gives a detailed analysis of the linguistic, syntactic, and structural properties of answered and unanswered questions to help the developers of QA systems to better understand where their system excels and where it struggles.
40
Kim, Kang-Seog, and William A. Wieselquist. "Neutronic Characteristics of ENDF/B-VIII.0 Compared to ENDF/B-VII.1 for Light-Water Reactor Analysis." Journal of Nuclear Engineering 2, no. 4 (September 23, 2021): 318–35. http://dx.doi.org/10.3390/jne2040026.
Full textAbstract:
The Evaluated Nuclear Data File (ENDF)/B-VIII.0 data library was released in 2018. To assess the new data during development and shortly after release, many validation calculations were performed with static, room-temperature benchmarks. Recently, when performing validation of ENDF/B-VIII.0 for pressurized water reactor depletion calculations, a regression in performance compared to ENDF/B-VII.1 was observed. This paper documents extensive benchmark calculations for light-water reactors performed using continuous energy Monte Carlo code with ENDF/B-VII.1 and -VIII.0 and neutronic characteristics of ENDF/B-VIII.0 are discussed and compared to those of ENDF/B-VII.1. It is our recommendation that ENDF/B data library assessment should include reactor-specific benchmark assessments, including depletion cases, such that these types of regressions may be caught earlier in the data development cycle.
41
Hasselback, James R., Alan Reinstein, and Mohammad Abdolmohammadi. "Benchmarking the Research Productivity of Accounting Doctorates." Issues in Accounting Education 27, no. 4 (November 1, 2012): 943–78. http://dx.doi.org/10.2308/iace-50253.
Full textAbstract:
ABSTRACT Increasing attention to faculty research productivity suggests a need for reliable benchmarks, which the literature has provided. We add to this literature by providing alternative benchmarks based on records of 5,607 accounting doctoral graduates from 1971–2005. We measure research productivity in four ways: (1) unadjusted number of published articles in the Best 3, Best 13, Best 24, and Best 40 journals, (2) published articles adjusted for journal quality scores, (3) published articles adjusted for coauthorship, and (4) published articles adjusted for both journal quality and coauthorship. We find evidence that average publication productivity of accounting faculty per year has steadily increased over the 35 years under study. We present benchmark measures based on faculty productivity in four sets of journals both from 1971–2005 and for each year of 2001–2005. The former shows that a significant proportion of doctoral graduates have never published in any of the 40 journals studied. The latter shows nine years of productivity in the most recent years. These data can be useful as a benchmark for promotion and tenure decisions. We also present productivity percentiles as another benchmark, followed by research productivity of the top 10 most productive faculty (based on the most conservative measure of published articles adjusted for both journal quality and coauthorship) from 1971–2005 as yet another benchmark. Additional analysis indicates very high correlations between productivity measures. This evidence indicates that productive researchers rank high regardless of the productivity measure used to evaluate them. Finally, multivariate tests reveal effects for gender (male faculty generally scoring higher than female faculty), school of affiliation (faculty at doctoral granting institutions as significantly more productive than their counterparts at nondoctoral schools), professorial rank (professors scoring higher than those in administrative and other roles), and teaching years since doctorate (those with 10 years or less of service since doctoral year being more productive than those with 11 years or more). The benchmarks identified in the study can help with tenure, promotion, merit pay, appointment and renewal of chaired professorships, and other resource allocation decisions.
42
Kim, Hye Gi, and Sun Sook Kim. "Development of Energy Benchmarks for Office Buildings Using the National Energy Consumption Database." Energies 13, no. 4 (February 20, 2020): 950. http://dx.doi.org/10.3390/en13040950.
Full textAbstract:
In an effort to improve the energy efficiency of existing buildings, it is necessary to first evaluate the energy performance of those buildings. Since it is difficult to obtain detailed information on existing buildings, the challenge is how to conduct reliable energy performance assessments with this limited information. As a result, many countries have adopted evaluation systems based on measured energy consumption data for existing buildings. This study aims to analyze the building energy consumption and characteristics using Korea’s national building database and provide an energy performance benchmark for continuous management of the energy performance of existing buildings. We analyzed the relationship between the basic statistical characteristics of the information collected from the national integrated energy database and energy consumption. The total floor area was found to be closely related to energy consumption, and various regression analysis methods were applied and compared to develop a benchmark to explain the trends of energy consumption according to the increase in total floor area. Finally, the developed benchmarks were used to evaluate energy consumption and examine the feasibility of the benchmarks.
43
Tanusondjaja, Arry, Magda Nenycz-Thiel, and Rachel Kennedy. "Understanding Shopper Transaction Data." International Journal of Market Research 58, no. 3 (May 2016): 401–19. http://dx.doi.org/10.2501/ijmr-2016-026.
Full textAbstract:
This paper applies the D Duplication Coefficient from the Duplication of Purchase Law as a benchmark to help investigate patterns in simultaneous product category purchases. Shopper transaction data enable a deep analysis of what goes into shoppers' baskets; however, robust benchmarks are critical to see patterns in such rich data. We demonstrate the application of D Duplication Coefficient data to 30,000-plus UK and US supermarket transactions. The cross-category benchmarks allow meaningful deviations to be identified, isolating categories that are more or less intensely co-purchased than expected, which can then be used to guide decisions regarding store layout, prioritise in-store activations and plan product category promotions.
44
Wang, Gu. "Performance Fees with Stochastic Benchmark." SIAM Journal on Financial Mathematics 13, no. 2 (May 19, 2022): 619–52. http://dx.doi.org/10.1137/21m1401826.
Full text
45
Zavorotniy, Roman. "PROBLEMS OF THE ANALYSIS OF STRATEGIC FINANCIAL VALUE-BASED BENCHMARKS OF THE UKRAINIAN ENTERPRISES." Economics & Sociology 7, no. 1 (May 20, 2014): 39–47. http://dx.doi.org/10.14254/2071-789x.2014/7-1/4.
Full text
46
Fernandes, Christopher M. B., Andrew Worster, Stephen Hill, Catherine McCallum, and Kevin Eva. "Root cause analysis of laboratory turnaround times for patients in the emergency department." CJEM 6, no. 02 (March 2004): 116–22. http://dx.doi.org/10.1017/s1481803500009088.
Full textAbstract:
ABSTRACT Introduction: Laboratory investigations are essential to patient care and are conducted routinely in emergency departments (EDs). This study reports the turnaround times at an academic, tertiary care ED, using root cause analysis to identify potential areas of improvement. Our objectives were to compare the laboratory turnaround times with established benchmarks and identify root causes for delays. Methods: Turnaround and process event times for a consecutive sample of hemoglobin and potassium measurements were recorded during an 8-day study period using synchronized time stamps. A log transformation (ln [minutes + 1]) was performed to normalize the time data, which were then compared with established benchmarks using one-sample t tests. Results: The turnaround time for hemoglobin was significantly less than the established benchmark (n = 140, t = –5.69, p < 0.001) and that of potassium was significantly greater (n = 121, t = 12.65, p < 0.001). The hemolysis rate was 5.8%, with 0.017% of samples needing recollection. Causes of delays included order-processing time, a high proportion (43%) of tests performed on patients who had been admitted but were still in the ED waiting for a bed, and excessive laboratory process times for potassium. Conclusions: The turnaround time for hemoglobin (18 min) met the established benchmark, but that for potassium (49 min) did not. Root causes for delay were order-processing time, excessive queue and instrument times for potassium and volume of tests for admitted patients. Further study of these identified causes of delays is required to see whether laboratory TATs can be reduced.
47
MORISHIMA, Nobuhiro. "Reactor Noise Analysis Benchmark Tests." Journal of the Atomic Energy Society of Japan / Atomic Energy Society of Japan 34, no. 8 (1992): 739–45. http://dx.doi.org/10.3327/jaesj.34.739.
Full text
48
Škvorc, Urban, Tome Eftimov, and Peter Korošec. "Transfer Learning Analysis of Multi-Class Classification for Landscape-Aware Algorithm Selection." Mathematics 10, no. 3 (January 29, 2022): 432. http://dx.doi.org/10.3390/math10030432.
Full textAbstract:
In optimization, algorithm selection, which is the selection of the most suitable algorithm for a specific problem, is of great importance, as algorithm performance is heavily dependent on the problem being solved. However, when using machine learning for algorithm selection, the performance of the algorithm selection model depends on the data used to train and test the model, and existing optimization benchmarks only provide a limited amount of data. To help with this problem, artificial problem generation has been shown to be a useful tool for augmenting existing benchmark problems. In this paper, we are interested in the problem of knowledge transfer between the artificially generated and existing handmade benchmark problems in the domain of continuous numerical optimization. That is, can an algorithm selection model trained purely on artificially generated problems correctly provide algorithm recommendations for existing handmade problems. We show that such a model produces low-quality results, and we also provide explanations about how the algorithm selection model works and show the differences between the problem data sets in order to explain the model’s performance.
49
Fang, Ruixian, and Dan Gabriel Cacuci. "Fourth-Order Adjoint Sensitivity and Uncertainty Analysis of an OECD/NEA Reactor Physics Benchmark: I. Computed Sensitivities." Journal of Nuclear Engineering 2, no. 3 (August 24, 2021): 281–308. http://dx.doi.org/10.3390/jne2030024.
Full textAbstract:
This work extends the investigation of higher-order sensitivity and uncertainty analysis from 3rd-order to 4th-order for a polyethylene-reflected plutonium (PERP) OECD/NEA reactor physics benchmark. Specifically, by applying the 4th-order comprehensive adjoint sensitivity analysis methodology (4th-CASAM) to the PERP benchmark, this work presents the numerical results of the most important 4th-order sensitivities of the benchmark’s total leakage response with respect to the benchmark’s 180 microscopic total cross sections, which includes 180 4th-order unmixed sensitivities and 360 4th-order mixed sensitivities corresponding to the largest 3rd-order ones. The numerical results obtained in this work reveal that the number of 4th-order relative sensitivities that have large values (e.g., greater than 1.0) is far greater than the number of important 1st-, 2nd- and 3rd-order sensitivities. The majority of those large sensitivities involve isotopes 1H and 239Pu contained in the PERP benchmark. Furthermore, it is found that for most groups of isotopes 1H and 239Pu of the PERP benchmark, the values of the 4th-order relative sensitivities are significantly larger than the corresponding 1st-, 2nd- and 3rd-order sensitivities. The overall largest 4th-order relative sensitivity S(4)σt,6g=30,σt,6g=30,σt,6g=30,σt,6g=30=2.720×106 is around 291,000 times, 6350 times and 90 times larger than the corresponding largest 1st-order, 2nd-order and 3rd-order sensitivities, respectively, and the overall largest mixed 4th-order relative sensitivity S(4)σt,630,σt,630,σt,630,σt,530=2.279×105 is also much larger than the largest 2nd-order and 3rd-order mixed sensitivities. The results of the 4th-order sensitivities presented in this work have been independently verified with the results obtained using the well-known finite difference method, as well as with the values of the corresponding symmetric 4th-order sensitivities. The 4th-order sensitivity results obtained in this work will be subsequently used on the 4th-order uncertainty analysis to evaluate their impact on the uncertainties they induce in the PERP leakage response.
50
Rasmussen, F. N., D. Trigaux, E. Alsema, M. Balouktsi, H. Birgisdóttir, R. Bohne, M. Dixit, et al. "Existing benchmark systems for assessing global warming potential of buildings – Analysis of IEA EBC Annex 72 cases." IOP Conference Series: Earth and Environmental Science 1078, no. 1 (September 1, 2022): 012054. http://dx.doi.org/10.1088/1755-1315/1078/1/012054.
Full textAbstract:
Abstract Life cycle assessment (LCA) is increasingly being used as a tool by the building industry and actors to assess the global warming potential (GWP) of building activities. In several countries, life cycle based requirements on GWP are currently being incorporated into building regulations. After the establishment of general calculation rules for building LCA, a crucial next step is to evaluate the performance of the specific building design. For this, reference values or benchmarks are needed, but there are several approaches to defining these. This study presents an overview of existing benchmark systems documented in seventeen cases from the IEA EBC Annex 72 project on LCA of buildings. The study characterizes their different types of methodological background and displays the reported values. Full life cycle target values for residential and non-residential buildings are found around 10-20 kg CO2e/m2/y, whereas reference values are found between 20-80 kg CO2e/m2/y. Possible embodied target- and reference values are found between 1-12 kg CO2e/m2/y for both residential and non-residential buildings. Benchmark stakeholders can use the insights from this study to understand the justifications of the background methodological choices and to gain an overview of the level of GWP performance across benchmark systems.