Showing posts with label HCI. Show all posts
Showing posts with label HCI. Show all posts

6/22/2009

HCI 6/23 Talk 筆記

人處理information的process!!!

social networking

傳統研究:
cluster怎麼組成
information flow
transition property
Zipf'law and email-world networks
→ 把人看成node
comment: It's not enough

multi-level approach
人跟機器的處理應該是不同的
可以對人的behavior做比較好的預測

"social-level": 把人當成一個flow
"cognitive-process": 解釋跟限制node的interaction
"perceptron-level"

一個人是如何處理大量的information?
→Information need
→Goal?

如何從Search去學習 Information? model mental Integration!!!
Information foraging:

SNIF-ACT
reenforce leraning:人跟動物怎麼看到東西
Information Scent
Action Selection
對簡單的page有list of link
再計算每個link跟goal的match有多高?
總體的evaluation放到action selection
對不同的query會有不同的profile

看到跟決定有沒有用不見得是同時的事,可能會參考別的result的結果!
(大概看到第4個link時去click第1個link的機率最高)


law of surfing
Aggregation
從congitive的角度出發,跟直接觀察發現畫出來的pattern是一模一樣的!

Chin,. Fu,Kannampallil, 2009
ill-defined task : elder做比較好
well-defined task: younger做比較好
不同的cognitive abilite(Aggreate)→Search Strategy→Search Performance
Different Information task structures/


information goal 是ambiguous
但是在search 過程中會不斷改變

exploratory searching ←→ Social
human search怎麼影響到search performance

folksonomies
open vocabulary problem→不同的人有不同的indexing的話,會不會不好做

experiment on exploratory search:
1. tag的確是有效的
2. 除了可以找到需要的資料的話,可以把裡面的資料很好的categorize→對topic的了解比較深入

semantic limitation Model

Conclusion
multi-level 可以有不同的explanation
可以多跟心理系合作xD




2/02/2009

Difference between InfoVis and HCI

HCI focus on "New interaction skill"

Infovis uses tranditional interaction, but what may be more important is "New Layout"


User study is really important for HCI, and it also helps a lot on InfoVis.
(But I think they're not as important as that in HCI)