Class information for:
Level 1: PREPAID SERVICES//CREDIT RESERVATION//IP MULTIMEDIA CORE NETWORK SUBSYSTEM IMS

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
12 4 COMPUTER SCIENCE, THEORY & METHODS//COMPUTER SCIENCE, INFORMATION SYSTEMS//COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE 1181119
35 3       TELECOMMUNICATIONS//IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS//ENGINEERING, ELECTRICAL & ELECTRONIC 110941
1042 2             TELECOMMUNICATIONS//MOBILITY MANAGEMENT//HANDOFF 10431
23563 1                   PREPAID SERVICES//CREDIT RESERVATION//IP MULTIMEDIA CORE NETWORK SUBSYSTEM IMS 365

Terms with highest relevance score



rank Category termType chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 PREPAID SERVICES authKW 431733 1% 100% 5
2 CREDIT RESERVATION authKW 259040 1% 100% 3
3 IP MULTIMEDIA CORE NETWORK SUBSYSTEM IMS authKW 239847 1% 56% 5
4 OPEN APIS authKW 197360 1% 57% 4
5 PUSH TO TALK OVER CELLULAR POC authKW 194279 1% 75% 3
6 TROMBONING authKW 194279 1% 75% 3
7 CHARGING DATA RECORD CDR authKW 172693 1% 100% 2
8 COMMUN INFORMAT TECHNOL CIT address 172693 1% 100% 2
9 DELAYED UPDATE authKW 172693 1% 100% 2
10 DIAMETER PROTOCOL authKW 172693 1% 100% 2

Web of Science journal categories



chi_square_rank Category chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 Telecommunications 24320 69% 0% 251
2 Computer Science, Information Systems 6418 35% 0% 127
3 Engineering, Electrical & Electronic 3452 57% 0% 207
4 Computer Science, Hardware & Architecture 1929 13% 0% 48
5 Computer Science, Software Engineering 651 10% 0% 37
6 Computer Science, Theory & Methods 526 11% 0% 40
7 Transportation Science & Technology 187 3% 0% 11
8 Computer Science, Interdisciplinary Applications 28 3% 0% 11
9 Computer Science, Artificial Intelligence 18 2% 0% 9
10 Automation & Control Systems 13 2% 0% 6

Address terms



chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 COMMUN INFORMAT TECHNOL CIT 172693 1% 100% 2
2 INFORMAT IFI 172689 1% 50% 4
3 INTELLIGENT COMMUN BROADBAND NETWORKS 97136 1% 38% 3
4 ADV WIRELESS OPT NETWORKING MODELING OPTIMIZA 86347 0% 100% 1
5 ARCHITECTURE SOFTWARE RELIABIL GRP 86347 0% 100% 1
6 BIOENGN TELEMED GRP GBT 86347 0% 100% 1
7 CHAIR ENTERPRISE PLATFORM INTEGRAT CONCEPTS 86347 0% 100% 1
8 COMMU NETWORKS 86347 0% 100% 1
9 COMP RUS 86347 0% 100% 1
10 COVERGENCE SOFTWARE COMP SCI 86347 0% 100% 1

Journals



chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass
1 IEEE COMMUNICATIONS MAGAZINE 93953 19% 2% 71
2 BELL LABS TECHNICAL JOURNAL 15716 3% 2% 12
3 JOURNAL OF NETWORK AND SYSTEMS MANAGEMENT 7358 1% 2% 5
4 TELECOMMUNICATION SYSTEMS 7130 3% 1% 12
5 IEEE WIRELESS COMMUNICATIONS 6643 2% 1% 9
6 IEEE NETWORK 5699 2% 1% 8
7 INTERNATIONAL JOURNAL OF NETWORK MANAGEMENT 5245 1% 2% 4
8 IEEE INTERNET COMPUTING 3163 2% 1% 6
9 IEEE COMMUNICATIONS SURVEYS AND TUTORIALS 2947 1% 1% 5
10 WIRELESS COMMUNICATIONS & MOBILE COMPUTING 2450 2% 0% 7

Author Key Words



chi_square_rank term chi_square shrOfCwithTerm shrOfTermInClass termInClass LCSH search Wikipedia search
1 PREPAID SERVICES 431733 1% 100% 5 Search PREPAID+SERVICES Search PREPAID+SERVICES
2 CREDIT RESERVATION 259040 1% 100% 3 Search CREDIT+RESERVATION Search CREDIT+RESERVATION
3 IP MULTIMEDIA CORE NETWORK SUBSYSTEM IMS 239847 1% 56% 5 Search IP+MULTIMEDIA+CORE+NETWORK+SUBSYSTEM+IMS Search IP+MULTIMEDIA+CORE+NETWORK+SUBSYSTEM+IMS
4 OPEN APIS 197360 1% 57% 4 Search OPEN+APIS Search OPEN+APIS
5 PUSH TO TALK OVER CELLULAR POC 194279 1% 75% 3 Search PUSH+TO+TALK+OVER+CELLULAR+POC Search PUSH+TO+TALK+OVER+CELLULAR+POC
6 TROMBONING 194279 1% 75% 3 Search TROMBONING Search TROMBONING
7 CHARGING DATA RECORD CDR 172693 1% 100% 2 Search CHARGING+DATA+RECORD+CDR Search CHARGING+DATA+RECORD+CDR
8 DELAYED UPDATE 172693 1% 100% 2 Search DELAYED+UPDATE Search DELAYED+UPDATE
9 DIAMETER PROTOCOL 172693 1% 100% 2 Search DIAMETER+PROTOCOL Search DIAMETER+PROTOCOL
10 INTERNET PROTOCOL MULTIMEDIA SUBSYSTEM 172693 1% 100% 2 Search INTERNET+PROTOCOL+MULTIMEDIA+SUBSYSTEM Search INTERNET+PROTOCOL+MULTIMEDIA+SUBSYSTEM

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 31117 FINGERPRINT POSITIONING//MULTI RECIPIENT MESSAGES//SHADOW REGISTRATION
2 35948 SUCCESSIVE ZOOMING GENETIC ALGORITHM SZGA//POLYACRYLATE ACM//IEDT
3 23435 BELL LABS TECHNICAL JOURNAL//AAL2//NETWORK TECHNOL PERFORMANCE
4 35364 MULTIHOP CELLULAR NETWORKS//SYSTEMS BEYOND THIRD GENERATION//ICM N PG SP RC
5 3096 MOBILE IP//VERTICAL HANDOVER//MOBILITY MANAGEMENT
6 37609 ADHERENCE SCORE//APPRAISAL COMPONENTS//CATEGORY MATCHING ALGORITHM
7 14353 LOCATION MANAGEMENT//LOCATION UPDATE//PAGING
8 17778 SPEECH QUALITY//E MODEL//PESQ
9 30224 SIP//VOIP//VOIP SECURITY
10 36942 CHARGEBACK SYSTEMS//CHARGEBACK//ACM CATEGORIES C4 K62

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