A dependency-based method for evaluating broad-coverage parsers

1998 ◽  
Vol 4 (2) ◽  
pp. 97-114 ◽  
Author(s):  
DEKANG LIN
Keyword(s):  
Pattern Matching ◽  
Performance Measures ◽  
Evaluation Method ◽  
Structural Pattern ◽  
Lexical Categories ◽  
Different Types ◽  
Parse Trees ◽  
Matching Mechanism ◽  
Dependency Trees ◽  
Overall Performance

With the emergence of broad-coverage parsers, quantitative evaluation of parsers becomes increasingly more important. We propose a dependency-based method for evaluating broad-coverage parsers that offers more meaningful performance measures than previous approaches. We also present a structural pattern-matching mechanism that can be used to eliminate inconsequential differences among different parse trees. Previous evaluation methods have only evaluated the overall performance of parsers. The dependency-based method can also evaluate parsers with respect to different kinds of grammatical relationships or different types of lexical categories. An algorithm for transforming constituency trees into dependency trees is presented, which makes the evaluation method applicable to both constituency grammars and dependency grammars.

Performance measurement for supply chain management and quality management integration

2019 ◽  
Vol 27 (7) ◽  
pp. 2130-2147 ◽  
Author(s):  
Marcio C. Machado ◽  
Renato Telles ◽  
Paulo Sampaio ◽  
Maciel M. Queiroz ◽  
Ana Cristina Fernandes
Keyword(s):  
Supply Chain ◽  
Supply Chain Management ◽  
Quality Management ◽  
Performance Measurement ◽  
Performance Measures ◽  
Chain Management ◽  
Content Type ◽  
Theoretical Perspectives ◽  
Overall Performance ◽  
Key Aspects

Purpose The purpose of this paper is to present a conceptual framework for performance measurement (PM) for the integration of supply chain management (SCM) and quality management (QM). Design/methodology/approach A systematic literature review on SCM and QM was conducted to develop key performance measures related to six areas of integration between QM and SCM: leadership; continuous improvement and innovation; sustainability performance; stakeholders; information system; and management and strategic planning. Findings Supported by the literature concerning to supply chain quality management (SCQM) integration, a set of nine propositions about performance measures, that contribute to the integration of SCQM, were developed. Originality/value This study contributes to QM practices within a supply chain environment from an integrated perspective. Additionally, the propositions have significant implications from both managerial and theoretical perspectives. This study also extends the concept of supply chain quality integration by focusing on key aspects of PM that may help to improve the overall performance of the supply chain.

Bejan’s Constructal Theory Analysis of Gas-Liquid Cooled Finned Modules

2011 ◽  
Vol 133 (7) ◽  
Author(s):  
Giulio Lorenzini ◽  
Simone Moretti
Keyword(s):  
Thermal Behavior ◽  
Heat Exchangers ◽  
High Performance ◽  
Numerical Study ◽  
Constructal Theory ◽  
Electronic Components ◽  
Theory Analysis ◽  
Pressure Losses ◽  
Different Types ◽  
Overall Performance

High performance heat exchangers represent nowadays the key of success to go on with the trend of miniaturizing electronic components as requested by the industry. This numerical study, based on Bejan’s Constructal theory, analyzes the thermal behavior of heat removing fin modules, comparing their performances when operating with different types of fluids. In particular, the simulations involve air and water (as representative of gases and liquids), to understand the actual benefits of employing a less heat conductive fluid involving smaller pressure losses or vice versa. The analysis parameters typical of a Constructal description (such as conductance or Overall Performance Coefficient) show that significantly improved performances may be achieved when using water, even if an unavoidable increase in pressure losses affects the liquid-refrigerated case. Considering the overall performance: if the parameter called Relevance tends to 0, air prevails; if it tends to 1, water prevails; if its value is about 0.5, water prevails in most of the case studies.

scholarly journals Motion-Induced Imbalance of Contact Impedance in ECG Capture: Comparison of Electrode Materials in Capacitive Coupling

2020 ◽  
Author(s):  
Sebastian Pfeiffer ◽  
Sebastian Meyer ◽  
Oliver Amft ◽  
Daisuke Anzai ◽  
Jianqin Wang ◽  
...  
Keyword(s):  
Electrode Materials ◽  
Body Movement ◽  
Soft Materials ◽  
Capacitive Coupling ◽  
Contact Impedance ◽  
Dynamic Variation ◽  
Incompressible Materials ◽  
Different Types ◽  
Negative Effect ◽  
Overall Performance

Differences in contact impedance of the ECG measurement electrodes lead to asymmetries of the signal paths and thus result in reduced common-mode rejection and artifacts. Here, the imbalance of contact impedance is investigated for<br>different types of electrodes with capacitive coupling in terms of static imbalance as well as dynamic variation during body movement. Flexible and incompressible materials like conductive foam and fabric showed the best overall performance. The negative effect of rigidity can partly be compensated by adding conducting foam, while soft materials can profit from an increase of electrode area. <br>

scholarly journals The Balanced Scorecard: the illusion of maximization without constraints

2012 ◽  
Vol 2 (1) ◽  
pp. 10-15
Author(s):  
Morten Jakobsen ◽  
Rainer Lueg
Keyword(s):  
Literature Review ◽  
Organizational Performance ◽  
Performance Measures ◽  
Balanced Scorecard ◽  
Analytical Study ◽  
Leading Indicators ◽  
Financial Indicators ◽  
Financial Success ◽  
The Balanced Scorecard ◽  
Overall Performance

The Balanced Scorecard (BSC) claims to maximize organizational performance through the management of different perspectives (e.g., financial, customers, internal processes, learning & growth). Most of the chosen measures are usually non-financial, as they are supposedly leading indicators of financial success. The developers of the BSC Kaplan and Norton see these perspectives as related, but not as linked to each other by accounting logic. Moreover, Kaplan and Norton recommend cascading the BSC across the organization by breaking up the BSC into sub-targets for each organizational unit.Inevitably, this can lead to situations where actors in an organization focus on a subset of non-financial indicators. In their attempt to maximize these indicators, unit-egoism may lead to sub-optimal overall performance of the organization. This is because the link from non-financial indicators at lower levels of the organization to the overall financial goals have been disjoined. This problem, however, has been largely ignored in the BSC-literature. Therefore, this paper addresses the rationality and limits inherent in the usage of multiple performance measures. For this, we conduct an analytical study based on a literature review.

scholarly journals An Introduction to Economic Evaluation: What's in a Name?

2005 ◽  
Vol 50 (3) ◽  
pp. 159-166 ◽  
Author(s):  
Jeffrey S Hoch ◽  
Carolyn S Dewa
Keyword(s):  
Economic Evaluation ◽  
Evaluation Method ◽  
Cost Effective ◽  
Economic Evaluations ◽  
Economic Study ◽  
Value Judgment ◽  
A Value ◽  
Different Types ◽  
New Treatment ◽  
Evaluation Techniques

Objective: This paper describes the main types of economic evaluation techniques. Method: To examine the strengths and limitations of different types of economic evaluations, we used a hypothetical example to review the reasoning underlying each method and to illustrate when it is appropriate to use each method. Results: The choice of economic evaluation method reflects a decision about what should represent “success” and how success should be valued. Measures of benefit and cost must be considered systematically and simultaneously. Claiming that a new treatment is cost-effective requires making a value judgment based on the personal beliefs of the claimant. Even when cost and effect data are objective, a verdict of cost-effective is subjective. The conclusions of an economic study can change significantly, depending on which patient outcome is used to measure success. Conclusions: Clinicians must be sure that important patient outcomes are not excluded from economic evaluations. Economic evaluation is a process designed to produce an estimate rather than a decision. New treatment can be more costly and still be cost-effective (if the extra benefit is valued more than the extra cost to produce it). However, since economic evaluation does not explicitly consider a decision maker's available budget, a new treatment can be deemed cost-effective but too expensive to approve.

Evaluation of Remote Interface Component Alternatives for Teaching Tele-Robotic Operation

2012 ◽  
pp. 163-184
Author(s):  
Goldstain Ofir ◽  
Ben-Gal Irad ◽  
Bukchin Yossi
Keyword(s):  
Performance Measures ◽  
End Users ◽  
Computer Integrated Manufacturing ◽  
Learning Ability ◽  
Improvement Rate ◽  
Tel Aviv ◽  
Hands On ◽  
Overall Performance ◽  
The Given ◽  
Remote Learning

This chapter discusses a remote learning study conducted at the Computer-Integrated-Manufacturing (CIM) Laboratory in Tel-Aviv University. The goal is to provide remote end-users with an interface that enables them to teleoperate a robotic arm in conditions as close as possible to hands-on operation in the laboratory. This study evaluates the contribution of different interface components to the overall performance and the learning ability of potential end-users. Based on predefined experimental tasks, the study compares alternative interface designs for teleoperation. The three performance measures of the robot operation task are (1) the number of steps that are required to complete the given task, (2) the number of errors during the execution stage, and (3) the improvement rate of users. Guidelines for a better design of remote learning interfaces in robotics are provided based on the experimental results.

A Novel Approach for Analyzing Single Buffer Queueing Systems with State-Dependent Vacation and Correlated Input Process under Four Different Service Disciplines

2015 ◽  
Vol 6 (3) ◽  
pp. 19-59 ◽  
Author(s):  
Thomas Yew Sing Lee
Keyword(s):  
Performance Measures ◽  
Probability Generating Function ◽  
Performance Measure ◽  
Idle Time ◽  
Separate Analysis ◽  
Input Process ◽  
State Dependent ◽  
Special Cases ◽  
Service Disciplines ◽  
Different Types

The author presents performance analysis of a single buffer multiple-queue system. Four different types of service disciplines (i.e., non-preemptive, pre-emptive repeat different, state dependent random polling and globally gated) are analyzed. His model includes correlated input process and three different types of non-productive time (i.e., switchover, vacation and idle time). Special cases of the model includes server with mixed multiple and single vacations, stopping server with delayed vacation and stopping server with alternating vacation and idle time. For each of the four service disciplines the key performance measures such as average customer waiting time, loss probability, and throughput are computed. The results permit a detailed discussion of how these performance measures depends on the customer arrival rate, the customer service time, the switchover time, the vacation time, and the idle time. Moreover, extensive numerical results are presented and the four service disciplines are compared with respect to the performance measure. Previous studies of the single buffer multiple-queue systems tend to provide separate analysis for the two cases of zero and nonzero switchover time. The author is able to provide a unified analysis for the two cases. His results generalize and improve a number of known results on single buffer multiple-queue systems. Furthermore, this method does not require differentiation while it is needed if one uses the probability generating function approach. Lastly, the author's approach works for all single buffer multiple-queue systems in which the next queue to be served is determines solely on the basis of the occupancy states at the end of the cycle time.

Marketing's Role in the Implementation of Business Strategies: A Critical Review and Conceptual Framework

1987 ◽  
Vol 51 (3) ◽  
pp. 15-33 ◽  
Author(s):  
Orville C. Walker ◽  
Robert W. Ruekert
Keyword(s):  
Critical Review ◽  
Organizational Structures ◽  
Business Strategies ◽  
Theoretical Perspectives ◽  
Different Types ◽  
Marketing Activities ◽  
Overall Performance ◽  
Research Propositions ◽  
Relationship Of ◽  
The Relationship

The authors review and integrate various theoretical perspectives, normative statements, and pieces of empirical evidence about the organizational structures and processes best suited for implementing different types of business strategies. Particular emphasis is given to the relationship of different types of structure, processes, and policies involved in the performance of marketing activities to the overall performance of different business strategies. Several specific research propositions are developed.

The effects of timbre on absolute pitch judgment

2020 ◽  
pp. 030573561989343 ◽  
Author(s):  
Xiaonuo Li
Keyword(s):  
Undergraduate Students ◽  
Large Scale ◽  
Musical Training ◽  
Absolute Pitch ◽  
Tonal Music ◽  
Test Study ◽  
High Prevalence ◽  
Different Types ◽  
Overall Performance ◽  
Very High

This article reports the high prevalence of Absolute Pitch (AP) among students at Shanghai Conservatory of Music and explores the effects of timbre on AP judgment through a large-scale direct-test study. This study used two types of timbres (piano timbre and string timbre) to explore the correlation between the different types of timbre and note-naming accuracy. The participants included 71 undergraduate students majoring in piano and string at Shanghai Conservatory of Music, who had begun musical training at an age ⩽ 9 and focused on Western tonal music. The main results showed that the overall performance levels were very high and that the students scored 73% correct without semitone errors and 80% with semitone errors. All groups exhibited higher performance in judging pitches in piano timbre than string timbre. In addition, after listening to piano timbre, the accuracy in judging pitches in string timbre was significantly increased, and after listening to string timbre, the accuracy in judging pitches in piano timbre decreased but not significantly.

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