The p value and t statistic measure how stron ... ataCadamia Subscribe. Search Term. Expand Sidebar Collapse Sidebar Data Mining; 1 Percent ... Accuracy is not really a reliable metric for the real performance of a classifier when the number of samples in different classes vary greatly (unbalanced target) because it will yield misleading ...
The performance of truck haulage operations in an underground mine was evaluated using the time usage model and key performance indicators (KPIs) proposed by Global Mining Guidelines Group (GMG).
With this procedure, the energy saving is improved as a consequence, healthy atmosphere with higher performance in the mines. Secondly, based on the time of use (TOU) tariff, the mining schedule starting time is found and analyzed in the load management using AO technique. ... An industrial-scale measurement with various …
The use of theory in performance measurement and management. Early literature on PMMS focused on the four phases of PMMS, design, implementation, use and refresh ( Neely et al., 2000; …
A Key Performance Indicator (KPI) is a critical measure used to track and assess your organization's progress toward achieving its strategic goals. Let's break it down: Indicator: Any raw measurement within your business. Think total hours worked, website visitors, etc.
The performance assessment model covers the four components (management competence, professional experience, financial add/projects and library services) in the context of the knowledge management model.,Based on quantitative data, the study defines a set of assumptions for testing the four components of performance …
This is a qualitative study with the objective to search for the patterns and directions in an integrated performance measurement of local hotels through secondary data from existing research collections and primary data from personal in-depth interviews with 12 local hotel administrators in the global tourism destination of Samui Island, Thailand.
A rotating vane anemometer measures airflow through mechanical velocity. Airflow passes over the propeller of the vane anemometer, causing rotational motion. The speed of rotation is then converted into a value for airflow speed. Vane anemometers can typically measure airflows in a range of 1 m/s to 15 m/s. Speeds below this range are too low ...
Examples of objective performance measures in finance include: Gross profit margin: Gross profit margin refers to an organization's total revenue minus its cost of goods sold (COGS), with the result divided by total revenue. This metric measures the efficiency of sales and production processes, and a positive gross profit margin enables the ...
Examples of current rock stress monitoring cases include the following: Su et al. have developed a sensor for quantitative measurement of rock mass stress and strain, which can measure the ...
PeMS is a freeway performance measurement system for all of California. It processes 2 GB/day of 30-second loop detector data in real time to produce useful information. Managers at any time can have a uniform, and comprehensive assessment of freeway performance. Traffic engineers can base their operational decisions on knowledge of …
Asset performance measurement is a concept which has not enjoyed as much attention in the mining industry as in, for example, the automobile industry and this gap leaves room for improvement in the mining industry. This article discusses the measurement of the performance of equipment and processes that constitute a …
MineLens Productivity Index. MineLens Productivity Index (MPI) works to measure mine productivity over time by benchmarking capital spend, operational costs, production costs, and labor data against a global set of peers. The MPI is comprised of historical data from more than 165 mines, covering all major geographies and commodities.
Performance Measurement System (PeMS) is a freeway performance measurement system for all of California. It processes 2 GB/day of 30-s loop detector data in real time to produce useful information. At any time managers can have a uniform, comprehensive assessment of freeway performance.
Data is obtained from the Caltrans Performance Measurement System (PeMS). Data is collected in real-time from nearly 40,000 individual detectors spanning the freeway system across all major metropolitan areas of California. PeMS is also an Archived Data User Service (ADUS) that provides over ten years of data for historical analysis.
As interest in mineral provenance grows, so too does the need to accurately measure and report on the environmental and social performance of mining operations. In this year's edition of EY' s annual report, Top 10 Risks and Opportunities for Mining and Metals – a reliable bellwether for industry concerns – mining companies ranked ...
F1 = frac {2times Precision times Recall} {Precision + Recall} F 1 = P recision+Recall2×P recision×Recall (4) Note that for all of the metrics above, the best possible outcome is 1.0. The worst possible result is a 0.0. Next let's cover the two plotting techniques I …
The utilization rate of water resources of mines in China is still relatively low. The evaluation of mine water recycling has practical guiding significance for the planning, positioning ...
Development of a force estimation model for rock fragmentation with disc cutters through theoretical modeling and physical measurement of crushed zone pressure. J Rostami. Colorado School of Mines 38, 56-64., 1997. 554. 1997. Disc cutting tests in Colorado Red Granite: Implications for TBM performance prediction.
The goal of the current research effort was to empirically explore common methods to HSMS performance measurement in mining organizations. The purpose was to determine if value and insight could be added into the ongoing approaches of the best ways to engage in health and safety performance measurement. Nine site-level health and …
Freeway performance Measurement System. Mining loop detector data. Author. CHAO CHEN 1 ; PETTY, Karl 1 ; SKABARDONIS, Alexander 2 ; VARAIYA, Pravin 1 ; ZHANFENG JIA 1. [1] Department of Electrical Engineering and Computer Science, University of California, Berkeley, CA 94720, United States. [2] Institute of Transportation Studies, …
– The aim of this work is to explore performance measurement practices in the context of an independent hotel in Northern Cyprus., – The study was conducted in a 392‐room five‐star resort hotel over a nine‐week period using multiple data collection methods comprising semi‐structured interviews, documentation collection and observation.
What to measure in employee performance reviews. Measuring employee performance is crucial as it provides tangible data to evaluate the effectiveness, efficiency, and improvement of employees. It helps in setting clear expectations, providing regular feedback, and aligning individual performance with organizational goals. Nikoletta Bika.
1. Introduction. Displacement of rock mass in underground mines is considered one of the most hazardous phenomena that can cause the collapse of the structures [1], as the excessive displacements lead to ground failure.It is challenging to evaluate the effect of rock mass displacement caused by the excavation of a tunnel or …
showed that there is a 95% confidence that the individual PDM measurements were within ±25% of the reference measurements. Mine test results indicate th at data taken with adjacent PDM and reference samplers are indistinguishable. The technology proved durable enough to successfully measure 108 shifts of data out of 115 attempts in the …
The process of constructing the unascertained measurement model of thermal humidity risk under high temperature underground conditions is shown in Fig. 1.Using the unascertained measure theory, a comprehensive evaluation was carried out on the basis of various factors that caused underground workers to respond to the thermal …
A Review on Blast Performance Monitoring Techniques in an Opencast Coal Mine. December 2021. Conference: 4th International Conference on Opencast Mining Technology & Sustainability (ICOMS-2021) At ...
Here's a quick explanation: KPIs are the key targets you should track to make the most impact on your strategic business outcomes. KPIs support your strategy and help your teams focus on what's important. An example of a key performance indicator is, "targeted new customers per month". Metrics measure the success of everyday business ...
The measurement of in situ stresses is important in the design of coal mines, and monitoring of how stress changes with time is also vital when assessing the long-term performance of coal mines. Therefore, it is of significance to develop a sensor for both the determination of in situ stress and the long-term monitoring of stress changes in ...
Be careful not to have too many metrics, or otherwise it can easily get convoluted. 3. Look at Historical Data. The whole point of developing marketing KPIs is to ultimately help your brand succeed, so look at your previous data and based on that, decide where / how you want to make improvements. 4.
Performance measurement is a method of evaluating employees and providing feedback on their job performance that managers and supervisors use. The gathered data from measuring performance enables evaluation and feedback to take place. This approach aids in communicating expectations and requirements to …
5 methods for measuring performance management. Companies might use a variety of systems to measure the effectiveness of a performance management strategy. Here are five methods to consider when attempting to collect data or create a structure for measuring performance management: 1. Numeric rating scales.
Purpose - The aim of this work is to explore performance measurement practices in the context of an independent hotel in Northern Cyprus. Design/methodology/approach - The study was conducted in a 392-room five-star resort hotel over a nine-week period using multiple data collection methods comprising semi-structured interviews, documentation ...
The starting point for selecting performance measures, whether for an individual or an enterprise, is the customer; hence the need for stakeholder analysis. For each of the answers to (1), the concept of 'quality' has to be identified. (1) and (2) then form the basis for measuring a good outcome for the customer.
Performance evaluation methods and instrumentation for mine ventilation fans. November 2009. Mining Science and Technology (China) 19 (6):819-823. DOI: 10.1016/S1674-5264 (09)60149-6. Authors: Man ...
A borehole deformation sensor for long-term stress monitoring in coal mine rock based on optical fiber Bragg gratings (FBGs) is presented. The sensor converts borehole deformation into optical fiber strain by using four rings. For each ring, two FBGs are bonded with the ring to measure the borehole deformation, and a reference FBG …
The results show that the sensor is capable of measuring stress in rock with good accuracy, and it performs well over a long period of time in coal mines. A borehole deformation sensor for long-term stress monitoring in coal mine rock based on optical fiber Bragg gratings (FBGs) is presented. The sensor converts borehole deformation into …
The PeMS architecture and use are described and traffic engineers can base their operational decisions on knowledge of the current status of the freeway network. Performance Measurement System (PeMS) is a freeway performance measurement system for all of California. It processes 2 GB/day of 30-s loop detector data in real time …
Performance measurement via sap flow monitoring of three eucalyptus species for mine site and dryland salinity phytoremediation Int J Phytoremediation. 2015;17 (1-6):101-8 ... Sap flow instrumentation on three Eucalyptus species at a mine site in western Victoria, Australia, was used to determine which species is best suited to meet the goals ...
