I have an application running on a JBoss server. We need update the application time to time. However, the JBoss is not allowed stop(restart) during update for business reason. How do I handle this tricky situation? Thanks! 2 cases: If the application is deployed in multi servers in cluster mode. If the application is deployed in a si...
Hi Guys, I want to incrementally cluster text documents reading them as data streams but there seems to be a problem. Most of the term weighting options are based on vector space model using TF-IDF as the weight of a feature. However, in our case IDF of an existing attribute changes with every new data point and hence previous clusterin...
Hello I want to build my own Matlab cluster from lots of junk computers. Anybody knows how to send data from one Matlab to another over TCP ? I need to send image chunks / .mat files and variables. Thanks, SW ...
I've been having issues getting an AppFabric Cluster running with 2 hosts. I've verified that it works with only 1 host (ie. cache item count increases as I navigate the web app), but when I try joining the 2nd host to the cluster I'm getting the following exception: Failed to read remote registry key from host 289851-cache2: Microsof...
I'm doing a little research on how to cluster articles into 'news stories' ala Google News. Looking at previous questions here on the subject, I often see it recommended to simply pull out a vector of words from an article, weight some of the words more if they're in certain parts of the article (e.g. the headline), and then to use some...
i have a distance matrix that is 1000x1000 in dimension and symmetric with 0s along the diagonal. i want to form groupings of distances (clusters) by simultaneously reordering the rows and columns of the matrix. this is like reordering a matrix before you visualize its clusters with a heatmap. i feel like this should be an easy proble...
I want to do hierarchical agglomerative clustering on texts in MATLAB. Say, I have four sentences, I have a pen. I have a paper. I have a pencil. I have a cat. I want to cluster the above four sentences to see which are more similar. I know Statistic toolbox has command like pdist to measure pair-wise distances, linkage to calculat...
Hi, I am totally new to JBoss. Basically i am needed to setup a JBoss clustering environment on windows. Meaning, JBossA sits on machine A and JBossB sits on machine B. So when JBossA fails, it will redirect the clients to JBossB. I have downloaded the enterprise-installer-5.0.1.jar. After which, I have totally no idea on how to go ab...
I wrote a k-Means clustering algorithm in MATLAB, and I thought I'd try it against MATLABs built in kmeans(X,k). However, for the very easy four cluster setup (see picture), MATLAB kMeans does not always converge to the optimum solution (left) but to (right). The one I wrote does not always do that either, but should not the built-in f...
I have a small cluster of Linux machines and an account on all of them. I have ssh access to all of them with no-password login. How can I use actors or other Scala's concurrency abstraction to achieve distribution ? What is the simplest path? Does some library can distribute the processes for me? The computers are unreliable, they can...
I understand this is not an error, not even a warning... (repeat thrice) Still: How to get rid of this standard message on each and every JBOSS 4.0.5 (Win7, x86) startup? 14:47:01,696 INFO [ClusterRuleSetFactory] Unable to find a cluster rule set in the classpath. Will load the default rule set. 14:47:01,697 INFO [ClusterRuleSetF...
Is there a online version of the k-Means clustering algorithm? By online I mean that every data point is processed in serial, one at a time as they enter the system, hence saving computing time when used in real time. I have wrote one my self with good results, but I would really prefer to have something "standardized" to refer to, sin...
I'm working with biological data - namely groups of genes. For example: group 1: geneA geneB geneC group 2: geneD geneE group 3: geneF geneG geneH For each pair of genes, geneX and geneY I have a score telling how similiar the two genes are (actually, I have two scores, since I used BLAST which is 'directional': I first searched geneX...
Hi, Is there a partition of english words into a high level categories like say sports, basketball etc... Its required for my project. Is this data available somewhere? I am okay with overlapping of words across categories. Thank you Bala ...
Hello, I have a set P of 2D points that I could like to cluster in a 2D uniformly spaced grid, where each cell is length X. I want to do this because I am trying to create a heat map, and I have way to much information so I am hoping by clustering the points into a uniformly spaced grid I can just report the final count of each grid. ...
Hi, I have a (symmetric) matrix M that represents the distance between each pair of nodes. For example, A B C D E F G H I J K L A 0 20 20 20 40 60 60 60 100 120 120 120 B 20 0 20 20 60 80 80 80 120 140 140 140 C 20 20 0 20 60 80 80 80 120 140 140 140 D 20 20 20 0 60 80 80 8...
Hi, www.fastfoodmaps.com http://maps.forum.nu/server_side_clusterer/ im looking for multi color marker with clustering like sample the website above. i found google api sample for single color marker with clustering concept. Anyone have any sample or any website plz post here. Thanks, Nithish ...
Let's say I'm running a cluster with two Weblogic server nodes on two servers (Solaris, 4 CPUs, 64 GB RAM each). The heap size is maxed out on these nodes and so each server runs with 40+ GB of free memory most of the time and each server usually has on average 30% CPU utilization. Assuming that the application scales horizontally prope...
I have a web app running on Tomcat (Spring WebFlow, Hibernate are used). On of the app's features is misc. reports generating based on stored data (quite heavy task). We're experiencing perfomance problems with other functionality while performing this task (note, only for some of our customers). So we've tried to create a cluster of tw...
Say you have a 4-node J2EE application server cluster, all running instances of a Hibernate application. How does caching work in this situation? Does it do any good at all? Should it simply be turned off? It seems to me that data on one particular node would become stale quickly as other users hitting other nodes make changes to databa...