Association Rules Mining Algorithm Based on Information Gain Ratio
The FP-Growth mining algorithm based on information gain ratio attribute reduction is mainly divided into two steps: Step 1: Use information gain ratio attribute reduction algorithm to clean data to remove redundant or unimportant data.
Roll Crushers
Single Roll Crushers. Single Roll Crushers are typically used as primary crushers that provide a crushing ratio of up to 6:1. They crush materials such as ROM coal, mine refuse, shale, slate, gypsum, bauxite, salt, soft shale, etc., while producing minimal fines.Designed with intermeshing roll teeth and a curved crushing plate, they are extremely effective in reducing slabby feeds.
Orange Data Mining
It is easy to build powerful predictive models in Orange. But how does the model "look like"? Which attributes and which values of those attributes are important?
Data Mining
i KATA PENGANTAR Pertumbuhan yang sangat pesat dalam bidang data mining, sebanding dengan kecepatan pertumbuhan data di era big data saat ini.Data mining memiliki 4 teknik, diantaranya klasifikasi, klasterisasi, regresi, dan
Algoritma C4.5
data mining › materi teknik informatika. Algoritma C4.5. Diposting oleh ilmuskripsi 13:48:00 6 comments Algoritma C4.5 ... Maaf, sepertinya ini adalah ID3 bukan C4.5, untuk C4.5 terdapat perhitungan split info dan …
Jenis Rasio Aktivitas + Rumus, Contoh Soal, …
Memahami 4 jenis rasio aktivitas menurut para ahli, termasuk rumus, contoh soal, cara interpretasi & analisis, dan nilai yang baik.
Association Rules Mining Algorithm Based on …
Association Rules Mining Algorithm Based on Information Gain Ratio Attribute Reduction Tongtong Han1, Wenjing Wang1,MinGuo1, and Shiyong Ning2(B) 1 Harbin University of Commerce, Harbin 150028, China 2 Heilongjiang Provincial Key Laboratory of Electronic Commerce and Information Processing, Harbin 150028, China [email protected] Abstract.
Crushing in Mineral Processing
How much reduction each crushing stage is capable of infliction of rocks (reduction ratio) is driven by the angles between the 2 surfaces on each side and holding the rocks-to-be-crushed as the move towards and away from …
Reducer Types for Industrial Gearboxes: A Comprehensive …
Typically encountered in heavy machinery in construction, mining, and large-scale manufacturing, they are designed to extend equipment life and enhance operational efficiency. When scouting for a heavy-duty gearbox, note the importance of resources like the Boston Gear Catalog PDF for the Boston Gear 700 Series, a treasure trove of ...
Decarbonisation to drive dramatic increase in mining …
The latest efforts in quantifying the global mining footprint have identified a minimum area of disturbance of 101,583 km 2 (Maus et al., 2022).Of this footprint, about 50% can be attributed to waste storage facilities and other permanent waste disposal sites (DFAT, 2016).Haas et al. (2015) estimate that several billion tonnes of mine waste are currently …
AMIT 135: Lesson 5 Crushing – Mining Mill Operator Training
Calculation of reduction ratio in crushing [image: (135-5-3)] Crushing Equipment The selection of the right crushing equipment is influenced by many factors some of which are upstream of the crushing plant (e.g. blasting pattern and mining method) and others which are downstream of the crushing plant (e.g. mill and grinding circuit selection).
AMIT 135: Lesson 8 Rod Mills – Mining Mill Operator Training
Reduction Ratio. Reduction ratio ranges from 2 to 200. Typical reduction ratio = 8. The optimum reduction ratio can be determined from the following expression:Râ†"0R = 8 + 5L/D
Stripping Ratio in Open-Pit Mining | SpringerLink
Elements that influence production stripping ratio include natural terrain and topography and geological conditions in the mining area, stripping sequence in the pit limit, mining parameter, market, price, ore supplying and blending requirement, and development transportation. Production stripping ratio varies with the extending of mining projects.
Hammer Mill Operating Principle
Hammer Mill Reduction Ratio. Hammermills are capable of accomplishing: reductions very much greater than any other type of crushing equipment. It is possible, though not always economical, to make reductions as high as 20:1 in open circuit, and to double this performance in closed circuit. As in any other type of crusher, low reduction ratios ...
Data Reduction in Data Mining: Techniques
Application: Used for feature extraction and data compression. It is effective when dealing with correlated features. 3. Attribute Subset Selection. Definition: Attribute subset selection involves choosing a relevant subset of …
Laporan Modul 1_Kominusi (Crushing dan Grinding)
Limitting reduction ratio adalah perbandingan antara ukuran bukaan screen dimana semua feed bisa lolos terhadap ukuran bukaan screen yang sama dimana semua produkta bisa lolos. Reduction Ratio 80% (RR80): perbandingan antara ukuran screen yang meloloskan 80% dari feed dengan ukuran bukaan screen yang meloloskan 80% dari produkta.
Roll Crushers | Williams Crusher
Mining, metallurgy, construction, power generation, and chemical industries commonly use these machines. They are also used in recycling to destroy waste materials, such as scrap metal, wood, and some plastics. ... Single Roll Crushers generally handle larger feed sizes at higher reduction ratios in higher capacities. These machines are also ...
How to Optimize Reduction Ratio in Jaw Crusher?
Jaw crushers are essential machines used in the mining and aggregate industries to break down large rocks into smaller, more manageable sizes. The primary function of a jaw crusher is to reduce the size of the material to a specific size range, commonly referred to as the reduction ratio. ... The reduction ratio is defined as the ratio of the ...
5 Jenis Rasio Keuangan + Rumus & Contoh Analisis
Current Ratio: Rp1.000.000.000 ÷ Rp500.000.000 = 2, artinya perusahaan memiliki likuiditas yang cukup. Net Profit Margin : Rp200.000.000 ÷ Rp2.000.000.000 = 0,1 atau 10%, menunjukkan bahwa dari setiap Rp1 penjualan, perusahaan mendapatkan laba bersih sebesar 10%.
Reduction Ratios in Crushing
Find out what a reduction ratio is and how it can make your crushing operation more efficient - saving you time and money! End of Year Sale - Up to $65K off - Ends Dec. 31st. Buy. Sell. Finance. Learn. About +1 800 329 3375. Home …
(PDF) Materi Pengolahan Bahan Galian
Secara Teoritis tF Working Reduction Ratio (WR) = Se 0,85 G Apparetn Reduction Ratio (AR) = So Gyratory Crusher Mempunyai kapasitas yag besar dibanding Jaw Crusher. Mekanisme …
Surface damage reduction effect of ultra-high working face …
The 12,401 mining operation features a working face with a mining height of 8.6 m, an advancing length of 5286 m, an inclination length of 299.2 m, a dip angle ranging from 1 to 5 degrees, and a ...
SIZE REDUCTION BY CRUSHING METHODS
All crushers have a limited reduction ratio m eaning that size reduction will take place in stages. 3.2 Operation stages: The operating stages in minerals process ing have remained the same for ...
Rock-to-Metal Ratio: A Foundational Metric for …
The quantity of ore mined and waste rock (i.e., overburden or barren rock) removed to produce a refined unit of a mineral commodity, its rock-to-metal ratio (RMR), is an …
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Google's service, offered free of charge, instantly translates words, phrases, and web pages between English and over 100 other languages.
Roll Crusher
The rolls on feeder-breakers resemble the cutting head of continuous coal mining machines. Feeder-breakers have very high capacities of up to 2000 tons/h, and are mainly intended for oversize control rather than achieving a high degree of size reduction. ... Since the reduction ratio for one pass of the material through a roll crusher is about ...
Determination of mining and retaining ratio for strip mining …
Making full use of the rock-arch effect and reasonably selecting a suitable mining and retaining ratio for strip mining in sedimentary bauxite can effectively improve the resource recovery rate and reduce in the support cost of stope. In the current study, we investigated the overlying strata of the goaf at a sedimentary bauxite mine, in Shanxi, China. According to the …
(PDF) Reduction of Fragment Size from Mining to Mineral
The worldwide mining industry consumes a vast amount of energy in reduction of fragment size from mining to mineral processing with an extremely low-energy efciency, particularly in ore crushing ...
Equipment Sizing: Crusher or Grinding Mill
The 80% passing size in microns is a convenient term for expressing the fineness of a crushed or ground product. It is also a convenient base for calculating the reduction ratio and the work required for reduction. It is readily found by plotting the percent passing on log-log paper, as in Fig. 5, to determine the size distribution curve.
AMIT 135: Lesson 8 Rod Mills – Mining Mill Operator …
AMIT 129: Surface Mine Safety; AMIT 130: Surface Mine Operations; AMIT 135: Introduction to Mining Systems and Equipment; ... Reduction ratio = 2 – 20 depending on material. Typically R = 8. Rod Mill Charge: Typically 45% of internal volume; 35% – …