knowledge graphs for question answering - …bj.bcebos.com/cips-upload/kg2/kg2_slb.pdf · mæ Î...

26
mæ Î8ÈvĄ Knowledge Graphs for Question Answering êóġ joint work with colleagues at Mobvoi 2014-10-17

Upload: hoangtu

Post on 18-Apr-2018

221 views

Category:

Documents


1 download

TRANSCRIPT

mæ Î��8ÈvĄ !

Knowledge Graphs for Question Answering

êóġ joint work with colleagues at Mobvoi

2014-10-17

�

mæ Î¼ā

Watson Î��8ÈvĄ¾�*

"nmm�8ÈvĄ¾�*

mæ ÎIBM Watson in Jeopardy!

pÌ�¢Þmæ

8ÈB�Óĕwikipedia

¦~č�FI�ĔĦ~č�|Ċ8È

Ù70 äÍ

IR+NLP+ML

mæ ÎGoogle Now

58%�ąþ~=�*�~č��÷"

~č�÷"¶çò° Ù88%

ÓĕGoogle8ÈvĄ

5Ĝobjectsħ35Ĝfacts&relationsĤ2012/05ĥ

mæ Î

"nmm

¹�ö5­�ąþ

0<ģAndroid wearģGlassģRlģ+>

POIģÔûģďHģ²ċD60��6|Ċ

ASRĦNLPĦIR+ML

mæ Î

mz�Ĕmz��

mz���æ�)

X��)ÐÕĆþ

ÐÕĆþX�L�

Watson

~č�8È�*ÿ

�)X��æ

�ùÐÕ±�

~č�8È�7Û

�îäTje ęħđ:DBPedia

�îäĤ�5ĥ|Ċ8Èęħđ:.q�Ge 

�îäĤ0wĥ|Ċ8Èęħđ:J�8È

Watson

ÖÕ'Jeopardy!��Ĕħ0wÀ¿�[|Ċ�frames

đ:J�ģ��ģ!#ģ½ģsÎD

�Õd`e�~č���~č��Õ��h

đ:Wikipediac�ģDBPedia

Watson - Prismatic

Linguistic Frame Extraction

10Ĝ�Frames

d2TBV·�Ęğ

SVO/is-aDe 

Watson - KAFE

Knowledge From Extracted Content

TjªĢ

TjÛÍ

ÛͪĢ

Watson�KG��*ĆÄ�Ge �ė�u

QueryĩA 1992 movie starring Anthony Hopkins was based on a book by this author

temporal_relation(Event A, Event B)

Accuracy�;1%

Watson�KG��*

ĆÄ�Ge �ė�u

QueryĩThis state which lies to the NE of Nebraska

spatial_relation(Entity A, Entity B)

Accuracy�;1.5%

Watson�KG��*bÑX�æð�ÛÍ&mz�LAT

EDMĩ_TjĖÜ WordNet

PDMĩ_LATĖÜ WordNet

�£WordNetÛÍG�õ¡

Equivalent/subclassħDisjointħSiblingħSuperclassħStatisticalħLCA

Accuracy�;3%

Watson�KG��*Semantic frame*KX��)

LANGUAGE: The lead singer of the band Dengue Fever is from this country & often sings in Khmer. (Answer: Cambodia)

�Jeopardy!�ħ�!#W�7­»Ï1ħÚ�­»��!#�y*­»

�7%�query�ù§r�X�

"nmm

8ÈvĄÛZ

Cݺè

POIħ:<čģÅĂģĉøģ]¤D

®áģ��ģ��ģ0<App

"nmm

"nmm8ÈvĄ��Õ�ë

�NV¥API

V¥íh

8ÈvĄ��Õ³�

Tjú�ĩ�M�ë�`MTjú�

�aú�ĩ�M�ë�`M�a�ú�

�Õîü�ĩĖÜ ���schema

"nmm8ÈvĄ��ÕÆć

¡©�Õ�^ĩGraph database

�©�ÁĩS��¨KĆþ��Õ~č

8ÈvĄ�ô%f,

-�à�Òh

/Đĝ/�Đĝ��ÕYh

"nmm

8ÈvĄ��*

�4­»�^

Query�Ĕ

ě�ąþ

"nmm*K�4­»�^

QueryĩtĞĒo×@ÉËă¯i

Ēo Ī

ÉË Ī

tĞĒo

×@ÉËă¯i

"nmm*K�4­»�^

Queryĩ¯½MßØČ����ïC

MßĨNN ØĨVV

MßØĨNN

"nmm*KQuery�Ĕ

QueryĩO���ē�Āì

³QueryN�®Q

"nmm*KQuery�Ĕ

Queryĩ���}��

“}��”����J��Q«

"nmm*Kě�ąþ

Queryĩ¤y�3k�E

“¤y�3”A�ý)“¬?¤y�3”ħ9��g�2�\�

Tj$^{ã�Uâ

"nmm*Kě�ąþ

QueryĩÇññ

®á

J�

J�

ÃĈ´

Âå]µ

mæ Î�8ÈvĄ(%&�*�PĚ

mæ ÎÓĕK�îä�8ÈvĄħ���0wÀ¸�|Ċ8ÈvĄ

8ÈvĄ��*Ġé�� äÊ�

�4­»�^ģQuery�Ĕģě�ąþģX�L�ģx�|Ċmz��æ