Data preprocessing using a priori knowledge
نویسنده
چکیده
In this paper we propose one possible way to preprocess data according to Activity theory. Such an approach is particularly interesting in Educational Data Mining.
منابع مشابه
Knowledge Translation in Healthcare – Towards Understanding its True Complexities; Comment on “Using Complexity and Network Concepts to Inform Healthcare Knowledge Translation”
This commentary argues that to fully appreciate the complexities of knowledge transfer one firstly has to distinguish between the notions of “data, information, knowledge and wisdom,” and that the latter two are highly context sensitive. In particular one has to understand knowledge as being personal rather than objective, and hence there is no form of knowledge that a-priori is more authoritat...
متن کاملEnhancing Learning from Imbalanced Classes via Data Preprocessing: A Data-Driven Application in Metabolomics Data Mining
This paper presents a data mining application in metabolomics. It aims at building an enhanced machine learning classifier that can be used for diagnosing cachexia syndrome and identifying its involved biomarkers. To achieve this goal, a data-driven analysis is carried out using a public dataset consisting of 1H-NMR metabolite profile. This dataset suffers from the problem of imbalanced classes...
متن کاملPolynomial-Phase Signal Direction-Finding & Source-Tracking with an Acoustic Vector Sensor
A new ESPRIT-based algorithm is proposed to estimate the direction-of-arrival of an arbitrary degree polynomialphase signal with a single acoustic vector sensor. The proposed approach requires neither a priori knowledge of the polynomial-phase signal’s coefficients nor a priori knowledge of the polynomial-phase signal’s frequency-spectrum. A preprocessing technique is also proposed to incorpora...
متن کاملVideo preprocessing for audiovisual indexing - Image Analysis and Interpretation, 2002. Proceedings. Fifth IEEE Southwest Symposium on
In this paper we address the problem of detecting shots of subjects that are interviewed in news sequences. This is useful since usually these kinds of scenes contain important and reusable information that can be used for other news programs. In a previous paper, we presented a technique based on a priori knowledge of the editing techniques used in news sequences which allowed a fast search of...
متن کاملOn Finding an Inference-Proof Complete Database for Controlled Query Evaluation
Controlled Query Evaluation (CQE) offers a logical framework to prevent a user of a database from inadvertently gaining knowledge he is not allowed to know. By modeling the user’s a priori knowledge in an appropriate way, a CQE system can control not only plain access to database entries but also inferences made by the user. A dynamic CQE system that enforces inference control at runtime has al...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2013