| ReturnTo Theme-Group-Choice | Onelevelup |
| 5B175 | INFORMATION RETRIEVAL, DB STRUCTURES AND FS STRUCTURES THEREFOR | |
| G06F16/00 -16/958 | ||
| G06F16/00;16/20-16/958 | AA | AA00 CONFIGURATIONS OF RETRIEVAL SYSTEM |
AA01 | AA02 | AA03 | AA04 | AA05 | |||||
| . Distributed systems (e.g., distributed database) | . Client-server systems | . Portable devices (mobile phone, smartphone, etc.) | . Electronic books | . Others | ||||||||
| BA | BA00 PROTECTION AND LIMITATION OF RETRIEVAL SYSTEM |
BA01 | BA02 | BA03 | ||||||||
| . Protection, limitation and security of data | . Limitation of accesses to retrieval system | . Others | ||||||||||
| CA | CA00 ASPECTS OF RETRIEVAL SYSTEM |
CA01 | CA02 | CA03 | CA04 | CA05 | CA06 | CA07 | CA08 | CA09 | CA10 | |
| . Operation of retrieval system (e.g., Statistics, maintenance) | . Logical file configurations (e.g., semi-structured data) | . Physical file configurations (e.g., hierarchical, distributed) | . Recording media (e.g., magnetic tape, optical disk) | . . Memories (e.g., in-memory database) | . Information retrieval other than electronic data | . Creation of database file | . . Data compression | . Update processing of database file | . . Version management | |||
| CA11 | CA12 | |||||||||||
| . Conversion processing of database file | . Other processing on update and conversion | |||||||||||
| DA | DA00 OBJECTS TO BE RETRIEVED |
DA01 | DA02 | DA03 | DA04 | DA05 | DA06 | DA07 | DA08 | DA09 | DA10 | |
| . Text data (e.g., unstructured text) | . Still image data, document images | . Map data, geographic information database | . Video data | . Sound data | . Chemical structure data | . Multi-media systems | . Compressed data | . Dictionary data | . Others | |||
| EA | EA00 METHODS OF RETRIEVAL |
EA01 | EA02 | EA03 | EA04 | EA05 | ||||||
| . Knowledge database (e.g., question-answering system) | . . Expert system | . Relational database | . Object-oriented database | . Others (e.g., crawler, agent) | ||||||||
| FA | FA00 RETRIEVAL KEY GENERATION |
FA01 | FA02 | FA03 | FA04 | |||||||
| . Automatic extraction, selection and weighting of retrieval key | . Manual addition of retrieval key | . Classification, clustering | . Others | |||||||||
| FB | FB00 SUMMARY |
FB01 | FB02 | FB03 | FB04 | |||||||
| . Automatic generation of summary data | . Registration of metadata or annotation | . Retrieval using metadata or annotation | . Others (e.g., data analysis, statistic, tabulation processing) | |||||||||
| GA | GA00 INPUT OF RETRIEVAL SYSTEM |
GA01 | GA02 | GA03 | GA04 | |||||||
| . Input guidance, input support, input suggestion | . . Guidance using menu-driven GUI | . Optical input (e.g., OCR, barcode input) | . Others (e.g., voice, position detection, RFID) | |||||||||
| GB | GB00 INPUT OF RETRIEVAL KEY |
GB01 | GB02 | GB03 | GB04 | GB05 | ||||||
| . Selection from display in a search space (e.g., icon) | . Retrieval key list input | . Conversion of retrieval key | . . Thesaurus | . Others (e.g., image retrieval key input) | ||||||||
| GC | GC00 INPUT OF RETRIEVAL STYLE |
GC01 | GC02 | GC03 | GC04 | |||||||
| . Processing of retrieval style (e.g., development of query expression) | . . Conversion of retrieval style, retrieval query, or retrieval language | . Natural language retrieval processing | . Others (e.g., storage of retrieval style) | |||||||||
| HA | HA00 RETRIEVAL PROCESSING |
HA01 | HA02 | HA03 | HA04 | HA05 | ||||||
| . Priority, weighted retrieval (e.g., information recommendation) | . Retrieval processing using history (e.g., storage of retrieval results) | . Retrieval condition operation (e.g., Boolean operation) | . . Query language processing (e.g., SQL, XQuery) | . Others (e.g., secondary retrieval, re-retrieval, SDI) | ||||||||
| HB | HB00 MATCHING OR THE LIKE OF RETRIEVAL SYSTEM |
HB01 | HB02 | HB03 | HB04 | HB05 | ||||||
| . Matching | . Scale detection | . Fuzzy detection (e.g., similarity calculation between data) | . using associative memory | . Others | ||||||||
| JA | JA00 OUTPUT OF RETRIEVAL SYSTEM |
JA01 | JA02 | |||||||||
| . Card-type | . Others (e.g., metaphor, graph) | |||||||||||
| JB | JB00 OUTPUT OF RETRIEVAL RESULTS |
JB01 | JB02 | |||||||||
| . displaying the number of retrievals | . Others | |||||||||||
| JC | JC00 DISPLAY OF OBJECTS TO BE RETRIEVED |
JC01 | JC02 | JC03 | JC04 | JC05 | JC06 | JC07 | ||||
| . Page turning (including scrolling) | . . Automatic page turning (including scrolling) | . . Bookmark during browsing (e.g., bookmark) | . Display of data related to an object to be retrieved | . List display (including reordering processing) | . . Thumbnailing | . Others | ||||||
| KA | KA00 PROCESSING OF DATA IN RETRIEVAL SYSTEM |
KA01 | KA02 | KA03 | KA04 | KA05 | KA06 | KA07 | KA08 | KA09 | KA10 | |
| . Processing of unaligned data | . . Random access | . . . by address calculation or conversion | . . . . Retrieval using hash value | . . . Directory or table look-up | . . . . Index of hierarchy structure (e.g., tree structure index, such as B-tree) | . . . . Inverted file (e.g., N-gram index) | . . . . Other index structures | . . including sequential access and data stream processing | . Sequential processing of aligned data | |||
| KA11 | KA12 | KA13 | ||||||||||
| . Processing of tree structured data | . Processing of graph-structured data (e.g., link structure) | . Other processing of linked data | ||||||||||
| LA | LA00 FILE MANAGEMENT ON RETRIEVAL SYSTEM |
LA01 | LA02 | |||||||||
| . File management in computers | . Others |