Complex queries in the PATENTSCOPE search system

CyberspaceSeptember2013

Sandrine AmmannMarketing & Communications Officer

Agenda

What’s new?

Complex queriesAdvanced search interface“tools” available to build complex queries1 exampleCLIR

Q & A

What’s new?

Addition of the Chinese national patent collection

Chinese data in PATENTSCOPE

From 1985 to 1995 included: Bibliographic data in English

From 1996Bibliographic data in English and ChineseClaims in ChineseDescription in Chinese

= about 2.8 million full-text

Also new

Addition of national patent collections of

BahrainUAEEgypt

COMPLEX QUERIES

Search efficiency optimization

3 elements have therefore to be defined:

a .The database/s + technical tools to be usedb. The precise scope of the search andc. The search strategy

Complex queries

1. Advanced search interface2. Stemming3. Operators 4. Field codes5. Grouping-nesting6. Caret -wildcard –fuzzy search 7. Date search8. CLIR

1. Advanced search interface

2. Stemming

Stemming

Process that removes common ending from words by English Snowball algorithm electric¦al = electric

electric¦ity = electric electron¦ics = electron

A complex queryEN_TI:((((windturbine OR ((eolic OR eolian OR aeolian OR wind OR windmill) NEAR2 (turbine OR power OR generator))) NEAR500 (HAWT OR (horizontal NEAR2 (axle OR shaft OR axes OR axis)))) AND ((armature^5 OR rotator^5 OR rotor^20 OR helix^5 OR "helical member"^5) OR (aerofoil^5 OR vane^5 OR fins^5 OR paddles^5 OR airfoils^5 OR blade^5))) ) OR EN_AB:((((windturbine OR ((eolic OR eolian OR aeolian OR wind OR windmill) NEAR2 (turbine OR power OR generator))) NEAR500 (HAWT OR (horizontal NEAR2 (axle OR shaft OR axes OR axis)))) AND ((armature^5 OR rotator^5 OR rotor^20 OR helix^5 OR "helical member"^5) OR (aerofoil^5 OR vane^5 OR fins^5 OR paddles^5 OR airfoils^5 OR blade^5))) ) OR EN_CL:((((windturbine OR ((eolic OR eolian OR aeolian OR wind OR windmill) NEAR2 (turbine OR power OR generator))) NEAR500 (HAWT OR (horizontal NEAR2 (axle OR shaft OR axes OR axis)))) AND ((armature^5 OR rotator^5 OR rotor^20 OR helix^5 OR "helical member"^5) OR (aerofoil^5 OR vane^5 OR fins^5 OR paddles^5 OR airfoils^5 OR blade^5))) ) OR IC:("F03D 1/06")

3. Boolean operators

ORANDNOTXOR

By default….

The complex query

3. Proximity operators: NEAR + "…"" …."

«horizontal axle» = horizontal NEAR1 axle

NEAR

By default: 5 words between entered keywordsA NEAR B = B NEAR A

horizontal NEAR2 axle = "horizontal axle" ~2

3. Proximity operators: BEFORE

BEFORE define positions of search term

horizontal BEFORE axle

The complex query

4. Field codes

Basic fields: elements of a patent documentDerived fields

2 letter code = individual fieldEN_TI FR_AB ES_DE_SConvention: language specified by 2 letters

if not specified all languages S = stemmed

: to separate term without any space

4. Field codes

FP = front pageALL = all fieldsALL_TEXT/ALL_NAMES = all text/namesIC = IPCDP = publication dateCTR = country either WO or country from nat collectionNPCC= national phase entryAN = origin of PCT

http://patentscope.wipo.int/search/en/help/fieldsHelp.jsf

The complex query

5. Grouping/nesting

Solar OR (wind AND turbine)(solar OR wind) AND turbine

EN_TI: electric carelectric will be searched in English title but car in all fields

EN_TI: (electric car)Both electric and car will be searched in the English title

5. Grouping/nesting

Not all combinations work:

(electric AND car) NEAR power X

power NEAR (electric AND car) X

power NEAR (vehicle OR car)

EN_AB: hearing NEAR aid XEN_AB: (hearing NEAR aid)

The complex query

6. Caret ^

Boosting to control relevance of a term

Boost factor (number): the higher the more relevant the keyword

6. Wildcards

te?t = text or testelec*tyelect*

6. Fuzzy searches

Use of the tilde: ~

Examples: roam~ foam / roams

Roam~0.8

7. Date searches

Simple: based on year, month or day

DP: 01.02.2000DP: 2003

Range: value are between the lower and upper bound

DP:[01.01.2000 TO 31.12.2000]DP: [2000 TO 2010]

CLIR CLIR stands for Cross Lingual Information Retrieval and will

allow you to search a term or a phrase and its variants in:

ChineseDutchEnglishFrenchGermanItalianJapaneseKoreanPortugueseRussianSpanish and Swedish

CLIR: the interface

CLIR: precision vs recall

Example: precision

Example: recall

CLIR: supervised mode

2 modes: automatic and supervised

Automatic: 1 stepSupervised: 4 steps

Automatic mode

Automatic mode: results

Supervised mode

Domain selection

Variant selection

Translations

New query

Editing in the Advanced search

Slides and recording

www.wipo.int/patentscope/en/webinar/index.html

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