Error is: Invariant Violation: view config getter callback for component 'div' must be a function (received 'undefined'). Make sure to start component names with a capital letter. I am getting this...

How do I calculate tf-idf for a query? I understand how to calculate tf-idf for a set of documents with following definitions: tf = occurances in document/ total words in document idf = log(#...

I plan to create a main tree named users which will include the name different users used as username. So, from each username will be included their data e.g. Full Name, Address, Phone No. I want ...

I was reading through this article and it said that Note that IDF is dependent on the query term (T) and the database as a whole. In particular, it does not vary from document to document. Th...

I'm trying to compile a list of information that is accessible via javascript such as: Geo-location IP address Browser software Exit location Entrance location I understand that a user ca...

I have worked with various applications and encountered this situation many times. Until now I have not figured out what is the best approach. Here's the scenario: I have an application either d...

I know, there are plenty of questions in regards to saving/retrieving data on here. I was doing find looking things up on my own and really thought I could manage to find my answers without having ...

I've got a 16GB memory card off someone that won't load properly (asks to be reformatted). I'm trying to get jpegs off it. I've run dd to dump the contents to a file, which worked splendidly. The ...

I am new to amazon web services. I want to retrieve all the entries in the dynamo DB table which have a particular word in their hash key. It is similar to using like operator in oracle DB. How can...

Is there any body who has used TREC_EVAL? I need a "Trec_EVAL for dummies". I'm trying to evaluate a few search engines to compare parameters like Recall-Precision, ranking quality, etc for my th...

I just learned the concept of hashing ("Hey! don't forget the salt!") and using salt to make the password secured. Hashing it is a one way encryption (actually not encryption but hashing) so it ca...