Subjective Knowledge Acquisition and Enrichment Powered By Crowdsourcing

05/16/2017
by   Rui Meng, et al.
0

Knowledge bases (KBs) have attracted increasing attention due to its great success in various areas, such as Web and mobile search.Existing KBs are restricted to objective factual knowledge, such as city population or fruit shape, whereas,subjective knowledge, such as big city, which is commonly mentioned in Web and mobile queries, has been neglected. Subjective knowledge differs from objective knowledge in that it has no documented or observed ground truth. Instead, the truth relies on people's dominant opinion. Thus, we can use the crowdsourcing technique to get opinion from the crowd. In our work, we propose a system, called crowdsourced subjective knowledge acquisition (CoSKA),for subjective knowledge acquisition powered by crowdsourcing and existing KBs. The acquired knowledge can be used to enrich existing KBs in the subjective dimension which bridges the gap between existing objective knowledge and subjective queries.The main challenge of CoSKA is the conflict between large scale knowledge facts and limited crowdsourcing resource. To address this challenge, in this work, we define knowledge inference rules and then select the seed knowledge judiciously for crowdsourcing to maximize the inference power under the resource constraint. Our experimental results on real knowledge base and crowdsourcing platform verify the effectiveness of CoSKA system.

READ FULL TEXT

page 1

page 2

page 3

page 4

research
10/25/2020

Crowdsourcing approach for subjective evaluation of echo impairment

The quality of acoustic echo cancellers (AECs) in real-time communicatio...
research
06/17/2019

Crowdsourcing in the Absence of Ground Truth -- A Case Study

Crowdsourcing information constitutes an important aspect of human-in-th...
research
07/05/2023

Power-up! What Can Generative Models Do for Human Computation Workflows?

We are amidst an explosion of artificial intelligence research, particul...
research
06/30/2022

Optimizing Character Animations using Online Crowdsourcing

This paper presents a novel approach for exploring diverse and expressiv...
research
06/13/2018

Crowd-Powered Data Mining

Many data mining tasks cannot be completely addressed by automated proce...
research
04/25/2022

Relevance Models Based on the Knowledge Gap

Search systems are increasingly used for gaining knowledge through acces...
research
03/30/2017

Evaluating Complex Task through Crowdsourcing: Multiple Views Approach

With the popularity of massive open online courses, grading through crow...

Please sign up or login with your details

Forgot password? Click here to reset