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1. WO2020107441 - ARTIFICIAL INTELLIGENT SYSTEMS AND METHODS FOR MAP MATCHING


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INTERNATIONAL SEARCH REPORT (ISR)
Part 1:  1  2  3  4  5  6          Part 2:  A  B  C  D  E 
International application No. Applicant's or agent's file reference
PCT/CN2018/118673 206150553W00
International filing date (day/month/year) (Earliest) Priority Date (day/month/year)
30 November 2018 28 November 2018
Applicant
BEIJING DIDI INFINITY TECHNOLOGY AND DEVELOPMENT CO., LTD.
FOR FURTHER ACTION: See Form PCT/ISA/220 as well as, where applicable, item 5 below.
This international search report has been prepared by this International Searching Authority and is transmitted to the applicant according to Article 18. A copy is being transmitted to the International Bureau.
It is also accompanied by a copy of each prior art document cited in this report.
1. Basis of the report
a. With regard to the language, the international search was carried out on the basis of:
the international application in the language in which it was filed.
a translation of the international application into                                          which is the language of a translation furnished for the purposes of international search (Rules 12.3(a) and 23.1(b)).
b.
This international search report has been established taking into account the rectification of an obvious mistake authorized by or notified to this Authority under Rule 91 (Rule 43.6bis(a)).
c.
With regard to any nucleotide and/or amino acid sequence disclosed in the international application, the international search was carried out on the basis of a sequence listing:
2. Certain claims were found unsearchable
3. Unity of invention is lacking
4. Title of the invention
The text is approved as submitted by the applicant.
The text has been established by this Authority to read as follows:
5. Abstract
The text is approved as submitted by the applicant.
The text has been established, according to Rule 38.2, by this Authority as it appears in Box No. IV. The applicant may, within one month from the date of mailing of this international search report, submit comments to this Authority.

A system and a method for map matching are disclosed. The system may perform the method to: obtain a GPS track including a plurality of positions(510); for each position of the plurality of positions, obtain at least one candidate match, each of the at least one candidate match including the position and a road segment within a first predetermined distance from the position(520); for each of the at least one candidate match, determine a measurement probability based on at least one of a trained supervised learning model or a road completion model(530); determine a route that matches with the GPS track based on the measurement probabilities(540); and direct a user terminal to display a matching between a current location associated with the user terminal and the determined route(550).


6. Drawings
a.
The figure of the drawings to be published with the abstract is Figure No.     5    
as suggested by the applicant.
as selected by this Authority, because the applicant failed to suggest a figure.
as selected by this Authority, because this figure better characterizes the invention.
b.
none of the figures is to be published with the abstract.

A. CLASSIFICATION OF SUBJECT MATTER

     G01C; 21/34(2006.01)i
According to International Patent Classification (IPC) or to both national classification and IPC

B. FIELDS SEARCHED

Minimum documentation searched (classification system followed by classification symbols):
     G01C
Documentation searched other than minimum documentation to the extent that such documents are included in the fields searched:
Electronic data base consulted during the international search (name of data base and, where practicable, search terms used):
WPI, EPODOC, CNPAT, CNKI, IEEE: BEIJING DIDI INFINITY TECHNOLOGY AND DEVELOPMENT, artificial intelligent, map, match+, guid+, candidate, GPS, trail, track, time, updat+, display+

C. DOCUMENTS CONSIDERED TO BE RELEVANT

Category* Citation of document, with indication, where appropriate, of the relevant passages Relevant to claim No.
(1)
X
CN 106767873 A (UNIV. ZHEJIANG) 31 May 2017 (2017-05-31)
1-24
description, paragraphs [0063]-[0104]
(2)
A
CN 108108808 A (UNIV. BEIJING POSTS & TELECOM) 01 June 2018 (2018-06-01)
1-24
the whole document
(3)
A
CN 106406306 A (BEIJING BAIDU NETCOM SCI. & TECHNOLOGY CO.) 15 February 2017 (2017-02-15)
1-24
the whole document
(4)
A
US 2009216435 A1 (MICROSOFT CORP.) 27 August 2009 (2009-08-27)
1-24
the whole document
(5)
A
US 2011208426 A1 (MICROSOFT CORP.) 25 August 2011 (2011-08-25)
1-24
the whole document
*
Special categories of cited documents:
"A"
document defining the general state of the art which is not considered to be of particular relevance
"D"
document cited by the applicant in the international application
"E"
earlier application or patent but published on or after the international filing date
"L"
document which may throw doubts on priority claim(s) or which is cited to establish the publication date of another citation or other special reason (as specified)
"O"
document referring to an oral disclosure, use, exhibition or other means
"P"
document published prior to the international filing date but later than the priority date claimed
"T"
later document published after the international filing date or priority date and not in conflict with the application but cited to understand the principle or theory underlying the invention
"X"
document of particular relevance; the claimed invention cannot be considered novel or cannot be considered to involve an inventive step when the document is taken alone
"Y"
document of particular relevance; the claimed invention cannot be considered to involve an inventive step when the document is combined with one or more other such documents, such combination being obvious to a person skilled in the art
"&"
document member of the same patent family

D. INFORMATION ON PATENT FAMILY MEMBERS

Patent document cited in search report Publication date
(day/month/year)
Patent family member(s) Publication date
(day/month/year)
CN 106767873 A
31 May 2017
None
CN 108108808 A
01 June 2018
None
CN 106406306 A
15 February 2017
None
US 2009216435 A1
27 August 2009
EP 2260457 A4
US 8972177 B2
WO 2009108457 A3
EP 2260457 A2
WO 2009108457 A2
19 December 2012
03 March 2015
05 November 2009
15 December 2010
03 September 2009
US 2011208426 A1
25 August 2011
US 10288433 B2
14 May 2019
Name and mailing address of the ISA/:
National Intellectual Property Administration, PRC
6, Xitucheng Rd., Jimen Bridge, Haidian District, Beijing 100088
China
Facsimile No. (86-10)62019451
Date of the actual completion of the international search:
12 August 2019
Date of mailing of the international search report:
02 September 2019
Authorized officer:
LI,Yanhong
Telephone No. 86-(10)-53961221
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