Questions tagged [knowledge-base]

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1answer
73 views

unsupervised learning in medical systems and intelligent systems?

I have a dataset which belongs to a hospital. It contains data about patients and healthy people. The problem is separating healthy ones from patients. I add some new features to dataset to solve this ...
2
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1answer
36 views

What knoweldge framework supports this type of query?

I have knowledge that is organized as in the example below, where items or nodes can belong to multiple hierarchies and can have arbitrary numbers of children and parents: ...
4
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1answer
84 views

how to increase the coverage of wordnet using wikipedia

I want to increase the coverage of wordnet by increasing the synset count. Is there a way in which I can proceed and increase sysnets. I am trying to work on Hindi wordnet with Princeton wordnet as ...
1
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0answers
34 views

Ontologies with user interface

I am working on the development of an ontology for my dissertation project. I have read plenty of resources and tutorials on how to develop ontologies, why are they useful and how to use them. I've ...
0
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1answer
58 views

Algorithm/Analysis that utilises incremental information?

I am looking for techniques which utilise information in an incremental manner. Example: A day with inclement climate is likely to be followed by another day with inclement climate. Or when an ...
2
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0answers
160 views

Debugging Neural Network for (Natural Language) Tagging

I've been coding a Neural Network for recognizing and tagging parts of speech in English (written in Java). The code itself has no 'errors' or apparent flaws. Nevertheless, it is not learning -- the ...
1
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2answers
93 views

What is the definition of knowledge within data science? [closed]

"Knowledge" is crucial within several fields like Knowledge Discovery, Knowledge Distraction, Natural Language Processing, Data Mining, Big Data, etc etc etc. What is the definition of knowledge ...
7
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4answers
3k views

How is Data Science related to Machine learning?

I went through this comparison of analytic disciplines and this perspective of machine learning, but I am not finding any answers on the following: How is Data Science related to Machine learning? ...
9
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3answers
2k views

Are ontologies and the Semantic Web dead? [closed]

Is the Semantic Web dead? Are ontologies dead? I am developing a work plan for my thesis about "A knowledge base through a set ontology for interest groups around wetlands". I have been researching ...
4
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0answers
81 views

Data Science Association? [closed]

Have you heard of the "Data Science Association"? URL: http://www.datascienceassn.org/ Do you expect it to become a professional body like the Actuaries Institute? If yes, then why? If no, then why ...
1
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4answers
876 views

First steps on a new cleaned dataset

What is the very first thing you do when you get your hands on a new data set (assuming it is cleaned and well structured)? Please share sample code snippets as I am sure this would be extremely ...
31
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5answers
11k views

What are the use cases for Apache Spark vs Hadoop

With Hadoop 2.0 and YARN Hadoop is supposedly no longer tied only map-reduce solutions. With that advancement, what are the use cases for Apache Spark vs Hadoop considering both sit atop of HDFS? I've ...
11
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3answers
4k views

Best languages for scientific computing [closed]

It seems as though most languages have some number of scientific computing libraries available. Python has Scipy Rust has <...
10
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3answers
1k views

Data Science oriented dataset/research question for Statistics MSc thesis

I'd like to explore 'data science'. The term seems a little vague to me, but I expect it to require: machine learning (rather than traditional statistics); a large enough dataset that you have to run ...
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2answers
3k views

Example tasks of a data scientist and the necessary knowledge

Could you give some examples of typical tasks that a data scientist does in his daily job, and the must-know minimum for each of the levels (like junior, senior, etc. if there are any)? If possible, ...
6
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5answers
402 views

Data science Ph.D. program, what do you think? [closed]

As Yann LeCun mentioned, a number of PhD programs in data science will be popping up in the next few years. NYU already have one, where Prof.LeCun is at right now. A statistics or cs PhD in machine ...