Class information for:
Level 1: HARD DISK DRIVE//DUAL STAGE ACTUATOR//HARD DISK DRIVES HDDS

Basic class information
Bar chart of Publication_year

Last years might be incomplete

Hierarchy of classes
The table includes all classes above and classes immediately below the current class.


Cluster id Level Cluster label #P
22 4 AUTOMATION & CONTROL SYSTEMS//ENGINEERING, CIVIL//ACOUSTICS 457813
58 3       ROBOTICS//AUTOMATION & CONTROL SYSTEMS//JOURNAL OF GUIDANCE CONTROL AND DYNAMICS 94289
359 2             AUTOMATION & CONTROL SYSTEMS//NONLINEAR SYSTEMS//ADAPTIVE CONTROL 17903
12636 1                   HARD DISK DRIVE//DUAL STAGE ACTUATOR//HARD DISK DRIVES HDDS 922

Terms with highest relevance score


rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 HARD DISK DRIVE authKW 1295526 14% 29% 129
2 DUAL STAGE ACTUATOR authKW 855804 3% 96% 26
3 HARD DISK DRIVES HDDS authKW 474722 3% 56% 25
4 SERVO SYSTEMS authKW 463326 4% 33% 41
5 HARD DISK DRIVE HDD authKW 460094 4% 38% 35
6 SERVO CONTROL authKW 449900 4% 36% 37
7 SERVO TRACK WRITING authKW 375998 1% 100% 11
8 DISK DRIVES authKW 340345 4% 26% 38
9 DUAL STAGE SERVO SYSTEM authKW 239271 1% 100% 7
10 INITIAL VALUE COMPENSATION authKW 239271 1% 100% 7

Web of Science journal categories


chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Automation & Control Systems 19234 30% 0% 279
2 Engineering, Electrical & Electronic 14904 73% 0% 675
3 Physics, Applied 4328 44% 0% 410
4 Engineering, Mechanical 2786 18% 0% 169
5 Engineering, Manufacturing 1739 8% 0% 72
6 Instruments & Instrumentation 1045 11% 0% 104
7 Nanoscience & Nanotechnology 647 10% 0% 92
8 Materials Science, Multidisciplinary 181 13% 0% 122
9 Computer Science, Hardware & Architecture 170 3% 0% 25
10 Computer Science, Artificial Intelligence 135 4% 0% 35

Address terms


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 ASTAR 118991 2% 20% 17
2 DATA STORAGE 101554 7% 5% 61
3 RECORDING MEDIA PROD 83736 1% 35% 7
4 HDD DEV 78126 0% 57% 4
5 HDD 2 68363 0% 100% 2
6 INPUT STORAGE 68363 0% 100% 2
7 MECH SERVO DEV 68363 0% 100% 2
8 PHILIPS IND TECHNOL 68363 0% 100% 2
9 HD DEV 68359 0% 50% 4
10 MECHATRON RECORDING CHANNEL 51269 0% 50% 3

Journals


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 JOURNAL OF INFORMATION STORAGE AND PROCESSING SYSTEMS 123025 2% 20% 18
2 IEEE TRANSACTIONS ON MAGNETICS 72339 29% 1% 268
3 MICROSYSTEM TECHNOLOGIES-MICRO-AND NANOSYSTEMS-INFORMATION STORAGE AND PROCESSING SYSTEMS 57099 9% 2% 79
4 IEEE TRANSACTIONS ON CONTROL SYSTEMS TECHNOLOGY 33716 6% 2% 53
5 IEEE-ASME TRANSACTIONS ON MECHATRONICS 31439 5% 2% 46
6 MECHATRONICS 16845 3% 2% 31
7 JOURNAL OF ADVANCED MECHANICAL DESIGN SYSTEMS AND MANUFACTURING 15622 2% 2% 19
8 IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS 6321 4% 0% 40
9 IEEE TRANSACTIONS ON CONSUMER ELECTRONICS 5091 3% 1% 27
10 CONTROL ENGINEERING PRACTICE 3774 2% 1% 19

Author Key Words


chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 HARD DISK DRIVE 1295526 14% 29% 129 Search HARD+DISK+DRIVE Search HARD+DISK+DRIVE
2 DUAL STAGE ACTUATOR 855804 3% 96% 26 Search DUAL+STAGE+ACTUATOR Search DUAL+STAGE+ACTUATOR
3 HARD DISK DRIVES HDDS 474722 3% 56% 25 Search HARD+DISK+DRIVES+HDDS Search HARD+DISK+DRIVES+HDDS
4 SERVO SYSTEMS 463326 4% 33% 41 Search SERVO+SYSTEMS Search SERVO+SYSTEMS
5 HARD DISK DRIVE HDD 460094 4% 38% 35 Search HARD+DISK+DRIVE+HDD Search HARD+DISK+DRIVE+HDD
6 SERVO CONTROL 449900 4% 36% 37 Search SERVO+CONTROL Search SERVO+CONTROL
7 SERVO TRACK WRITING 375998 1% 100% 11 Search SERVO+TRACK+WRITING Search SERVO+TRACK+WRITING
8 DISK DRIVES 340345 4% 26% 38 Search DISK+DRIVES Search DISK+DRIVES
9 DUAL STAGE SERVO SYSTEM 239271 1% 100% 7 Search DUAL+STAGE+SERVO+SYSTEM Search DUAL+STAGE+SERVO+SYSTEM
10 INITIAL VALUE COMPENSATION 239271 1% 100% 7 Search INITIAL+VALUE+COMPENSATION Search INITIAL+VALUE+COMPENSATION

Core articles
The table includes core articles in the class. The following variables is taken into account for the relevance score of an article in a cluster c:
(1) Number of references referring to publications in the class.
(2) Share of total number of active references referring to publications in the class.
(3) Age of the article. New articles get higher score than old articles.
(4) Citation rate, normalized to year.

Classes with closest relation at Level 1


rank cluster_id2 link
1 38050 RESET CONTROL//RESET CONTROL SYSTEMS//RESET LAW
2 18336 SPINNING DISK//DISK FLUTTER//ROTATING FLEXIBLE DISC
3 19797 DISTURBANCE OBSERVER BASED CONTROL//ACTIVE DISTURBANCE REJECTION CONTROL ADRC//DISTURBANCE OBSERVER
4 16975 OUTPUT REGULATION//MULTIPLE NARROW BAND DISTURBANCES//STABLE INVERSION
5 21864 OPTICAL PICKUP//OPTICAL HEAD//DIGITAL VERSATILE DISC
6 38323 BIBO STABILIZATION//NASTY DISTURBANCES//STRESSFUL DISTURBANCES
7 5679 HEAD DISK INTERFACE//FLYING HEIGHT//COMP MECH
8 7167 FRICTION COMPENSATION//CONTOUR ERROR//CONTOURING CONTROL
9 2904 FLEXURE HINGE//PIEZOELECTRIC ACTUATOR//COMPLIANT MECHANISM
10 7344 ITERATIVE LEARNING CONTROL//ITERATIVE LEARNING CONTROL ILC//REPETITIVE CONTROL

Go to start page