Hao Wang

16 Questions 10 Answers 0 Followers

Questions related from Hao Wang

How do you evaluate graph visualization results ?

05 May 2019 2,849 3 View

What are the hottest research topics in computer graphics ?

What is the list of the most heavily researched problems in computer graphics ?

05 May 2019 5,873 3 View

What are the hottest research topics in deep learning ?

05 May 2019 5,134 1 View

What should you do if a conference doesn't send you reviews?

I'm experiencing this problem twice with conferences organized by the same university - I never received the reviews when they rejected my papers. In my communications with the conference...

03 March 2019 8,690 4 View

Which school has the best computer graphics program ?

I keep being asked which university has the best computer graphics program in America ? I don't know. U has a quite good program, but I heard UNC ranks #1 from a U student back in my school...

03 March 2019 5,076 1 View

Is it possible to create an IoT-based big data solution ?

Is it possible to create a distributed framework similar to Hadoop on sensor networks ? For example, computation clients are pushed to each sensor.

03 March 2019 4,545 3 View

How to check algorithmically whether a series of paragraphs form a coherent article?

Suppose I have a series of paragraphs, how do I know when put together, these paragraphs form a coherent article?

02 February 2013 3,302 2 View

Where can I find Self-Organizing Maps implementation that supports sparse matrices?

I've noticed in R we have SOM in package class and SOM in package kohonen, but these packages do not support sparse matrices.

01 January 2013 6,610 0 View

Which dimensionality reduction approaches use only distance matrices?

I know Multidimensional Scaling uses only a distance matrix, but Self-Organizing Map requires coordinates of points in the original space. What are some other dimensionality reduction techniques,...

01 January 2013 5,036 2 View

What is a good clustering algorithm on hybrid dataset composed of both numerical and categorical data?

I need to do clustering on a dataset composed of both numerical and categorical data. What algorithms do you recommend ?

11 November 2012 6,889 16 View

How to predict click-through rates of image ads ?

I've read a couple of papers from the WWW conference on how to predict click-through rates of text ads. Does anyone know any good research on image ads?

11 November 2012 4,258 0 View

Where can I find some usable implementation of Hidden Markov Models with multivariate observation sequences ?

I'm fitting some multivariate observation sequences to a hidden markov model using R's RHmm pacakge. But I keep getting the following error "Error in BaumWelch(paramHMM, obs, paramAlgo) : Non...

10 October 2012 4,289 4 View

What text clustering algorithms are you using ?

I usually use Latent Dirichlet Allocation to cluster texts. What do you use? Can someone give a comparison between different text clustering algorithms?

10 October 2012 4,098 1 View

User Modeling / User Profiling / Persona Building in social network data.

I'm working for a social network company in China and quite often we need to build user models for our products. The goal is to find different user types and their characteristics. The approach we...

10 October 2012 3,491 0 View

Visualizing similarities between social network groups using multidimensional scaling (MDS)

Recently when I tried to visualize similarities between different groups in a social network, I discovered an interesting phenomenon which I couldn't explain. Can someone give me some insight on...

10 October 2012 1,830 20 View

Where can I get some fast multidimensional scaling code?

cmdscale in R is pretty slow. It takes about 1.5 hours to do multidimensional scaling on 10000 points.

09 September 2012 2,141 7 View