Class information for:
Level 1: SIGNATURE FILE//SUPERIMPOSED CODING//INVERTED FILE

Basic class information
Class id #P Avg. number of
references		 Database coverage
of references
19976 482 23.4 27%


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
9 4 COMPUTER SCIENCE, THEORY & METHODS//COMPUTER SCIENCE, ARTIFICIAL INTELLIGENCE//COMPUTER SCIENCE, INFORMATION SYSTEMS 1247339
20 3       COMPUTER SCIENCE, INFORMATION SYSTEMS//COMPUTER SCIENCE, THEORY & METHODS//COMPUTER SCIENCE, SOFTWARE ENGINEERING 118625
1774 2             PACKET CLASSIFICATION//SPATIAL DATABASES//SIMILARITY SEARCH 6381
19976 1                   SIGNATURE FILE//SUPERIMPOSED CODING//INVERTED FILE 482

Terms with highest relevance score


rank Term termType Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 SIGNATURE FILE authKW 1199805 5% 76% 25
2 SUPERIMPOSED CODING authKW 776038 3% 88% 14
3 INVERTED FILE authKW 506787 3% 50% 16
4 INVERTED INDEX authKW 254892 3% 31% 13
5 DOCUMENT IDENTIFIER REASSIGNMENT authKW 190051 1% 100% 3
6 FALSE DROP authKW 190051 1% 100% 3
7 SIGNATURE TREES authKW 190051 1% 100% 3
8 BIT COUNTING authKW 126701 0% 100% 2
9 EXTRACT A FEATURE authKW 126701 0% 100% 2
10 FORWARD INDEX authKW 126701 0% 100% 2

Web of Science journal categories


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 Computer Science, Information Systems 22858 56% 0% 271
2 Information Science & Library Science 9097 22% 0% 105
3 Computer Science, Software Engineering 3953 21% 0% 102
4 Computer Science, Theory & Methods 3468 24% 0% 114
5 Computer Science, Hardware & Architecture 3415 15% 0% 73
6 Computer Science, Artificial Intelligence 690 10% 0% 50
7 COMPUTER APPLICATIONS & CYBERNETICS 212 1% 0% 3
8 Engineering, Electrical & Electronic 41 8% 0% 39
9 Computer Science, Interdisciplinary Applications 40 3% 0% 15
10 Computer Science, Cybernetics 16 1% 0% 3

Address terms


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 IST ISTI A FAEDO 126701 0% 100% 2
2 ADV INFORMAT MANAGEMENT SOLUT 63350 0% 100% 1
3 DEV DATABASES T SID41 63350 0% 100% 1
4 DOCTORAL DEGREE PROGRAM ENGN 63350 0% 100% 1
5 FB WIRT AFT 63350 0% 100% 1
6 INTELLIGENT INTEGRATED PORT MANAGEMENT SYST 63350 0% 100% 1
7 ITI SANDERS 63350 0% 100% 1
8 LEHRSTUHL PRACT INFORMAT 3 63350 0% 100% 1
9 MATH MA INEN DATENVERARBEITUNG 6 63350 0% 100% 1
10 MSN SEARCH 63350 0% 100% 1

Journals


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class
1 INFORMATION PROCESSING & MANAGEMENT 83094 11% 3% 52
2 ACM TRANSACTIONS ON INFORMATION SYSTEMS 59495 5% 4% 22
3 INFORMATION TECHNOLOGY-RESEARCH DEVELOPMENT APPLICATIONS 21924 1% 12% 3
4 ACM TRANSACTIONS ON OFFICE INFORMATION SYSTEMS 20912 1% 6% 6
5 AUSTRALIAN COMPUTER JOURNAL 16533 2% 3% 8
6 ACM TRANSACTIONS ON THE WEB 16239 1% 4% 7
7 INFORMATION RETRIEVAL 12233 2% 2% 8
8 I-S ANALYZER 9048 0% 14% 1
9 JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE 6719 2% 1% 12
10 INFORMATION SYSTEMS 6203 2% 1% 12

Author Key Words


Rank Term Chi square Shr. of publ. in
class containing
term		 Class's shr. of
term's tot. occurrences		 #P with
term in
class		 LCSH search Wikipedia search
1 SIGNATURE FILE 1199805 5% 76% 25 Search SIGNATURE+FILE Search SIGNATURE+FILE
2 SUPERIMPOSED CODING 776038 3% 88% 14 Search SUPERIMPOSED+CODING Search SUPERIMPOSED+CODING
3 INVERTED FILE 506787 3% 50% 16 Search INVERTED+FILE Search INVERTED+FILE
4 INVERTED INDEX 254892 3% 31% 13 Search INVERTED+INDEX Search INVERTED+INDEX
5 DOCUMENT IDENTIFIER REASSIGNMENT 190051 1% 100% 3 Search DOCUMENT+IDENTIFIER+REASSIGNMENT Search DOCUMENT+IDENTIFIER+REASSIGNMENT
6 FALSE DROP 190051 1% 100% 3 Search FALSE+DROP Search FALSE+DROP
7 SIGNATURE TREES 190051 1% 100% 3 Search SIGNATURE+TREES Search SIGNATURE+TREES
8 BIT COUNTING 126701 0% 100% 2 Search BIT+COUNTING Search BIT+COUNTING
9 EXTRACT A FEATURE 126701 0% 100% 2 Search EXTRACT+A+FEATURE Search EXTRACT+A+FEATURE
10 FORWARD INDEX 126701 0% 100% 2 Search FORWARD+INDEX Search FORWARD+INDEX

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.


Rank Reference # ref.
in cl.		 Shr. of ref. in
cl.		 Citations
1 ZOBEL, J , MOFFAT, A , (2006) INVERTED FILES FOR TEXT SEARCH ENGINES.ACM COMPUTING SURVEYS. VOL. 38. ISSUE 2. P. - 40 63% 138
2 MACFARLANE, A , ROBERTSON, SE , MCCANN, JA , (1997) PARALLEL COMPUTING IN INFORMATION RETRIEVAL - AN UPDATED REVIEW.JOURNAL OF DOCUMENTATION. VOL. 53. ISSUE 3. P. 274 -315 21 75% 3
3 DANG, EKF , LUK, RWP , ALLAN, J , (2015) FAST-FORWARD INDEX METHODS FOR PSEUDO-RELEVANCE FEEDBACK RETRIEVAL.ACM TRANSACTIONS ON INFORMATION SYSTEMS. VOL. 33. ISSUE 4. P. - 16 57% 1
4 COUVREUR, TR , BENZEL, RN , MILLER, SF , ZEITLER, DN , LEE, DL , SINGHAL, M , SHIVARATRI, N , WONG, WYP , (1994) AN ANALYSIS OF PERFORMANCE AND COST FACTORS IN SEARCHING LARGE TEXT DATABASES USING PARALLEL SEARCH-SYSTEMS.JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE. VOL. 45. ISSUE 7. P. 443-464 16 94% 11
5 RASMUSSEN, EM , (1992) PARALLEL INFORMATION-PROCESSING.ANNUAL REVIEW OF INFORMATION SCIENCE AND TECHNOLOGY. VOL. 27. ISSUE . P. 99-130 26 59% 2
6 LAM, W , WONG, KF , WONG, CY , (2001) CHINESE DOCUMENT INDEXING BASED ON A NEW PARTITIONED SIGNATURE FILE: MODEL AND EVALUATION.JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE AND TECHNOLOGY. VOL. 52. ISSUE 7. P. 584-597 11 92% 0
7 LEE, DL , (1995) MASSIVE PARALLELISM ON THE HYBRID TEXT-RETRIEVAL MACHINE.INFORMATION PROCESSING & MANAGEMENT. VOL. 31. ISSUE 6. P. 815-830 14 88% 2
8 CHEN, YJ , SHEN, WX , (2016) AN EFFICIENT METHOD TO EVALUATE INTERSECTIONS ON BIG DATA SETS.THEORETICAL COMPUTER SCIENCE. VOL. 647. ISSUE . P. 1 -21 10 67% 0
9 WANG, JG , LO, E , YIU, ML , TONG, JC , WANG, G , LIU, XG , (2014) CACHE DESIGN OF SSD-BASED SEARCH ENGINE ARCHITECTURES: AN EXPERIMENTAL STUDY.ACM TRANSACTIONS ON INFORMATION SYSTEMS. VOL. 32. ISSUE 4. P. - 9 75% 0
10 LUK, RWP , (2011) SCALABLE, STATISTICAL STORAGE ALLOCATION FOR EXTENSIBLE INVERTED FILE CONSTRUCTION.JOURNAL OF SYSTEMS AND SOFTWARE. VOL. 84. ISSUE 7. P. 1082-1088 8 89% 1

Classes with closest relation at Level 1


Rank Class id link
1 37282 BITMAP INDEX//TRAFFIC ARCHIVAL//BITMAP COMPRESSION
2 8373 INFORMATION PROCESSING & MANAGEMENT//JOURNAL OF THE AMERICAN SOCIETY FOR INFORMATION SCIENCE//INFORMATION RETRIEVAL
3 15494 B TREE//DECLUSTERING//EXTENDIBLE HASHING
4 11765 TEXT COMPRESSION//HUFFMAN CODES//DATA COMPRESSION
5 27914 INFORMAT SCI INTELLIGENT SYST//TRIE STRUCTURES//NATURAL LANGUAGE DICTIONARIES
6 10377 INFORMATION RETRIEVAL//DISTRIBUTED INFORMATION RETRIEVAL//LEARNING TO RANK
7 24176 NAUCHNO-TEKHNICHESKAYA INFORMATSIYA SERIYA 2-INFORMATSIONNYE PROTSESSY I SISTEMY//SPELLING ERROR CORRECTION//DIACRITIZATION
8 7649 QUERY OPTIMIZATION//DISTRIBUTED DATABASE DESIGN//PARALLEL QUERY PROCESSING
9 4944 SUFFIX TREE//SUFFIX ARRAY//STRING MATCHING
10 34716 CLIP7//CUSTOM LSI//PRIMAL DUAL METHOD FOR OPTIMIZATION

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