Search for dissertations about: "Ensembles"

Showing result 1 - 5 of 94 swedish dissertations containing the word Ensembles.

2. 1. On Effectively Creating Ensembles of Classifiers : Studies on Creation Strategies, Diversity and Predicting with Confidence

   Author : Tuwe Löfström; Henrik Boström; Ulf Johansson; Harris Papadopoulos; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Machine Learning; Predictive Modeling; Ensembles; Conformal Prediction; Computer and Systems Sciences; data- och systemvetenskap;

   Abstract : An ensemble is a composite model, combining the predictions from several other models. Ensembles are known to be more accurate than single models. Diversity has been identified as an important factor in explaining the success of ensembles. READ MORE

4. 2. Ensembles of Semantic Spaces : On Combining Models of Distributional Semantics with Applications in Healthcare

   Author : Aron Henriksson; Hercules Dalianis; Martin Duneld; Nigel Collier; Stockholms universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; natural language processing; machine learning; distributional semantics; ensemble learning; semantic space ensembles; medical informatics; electronic health records; Computer and Systems Sciences; data- och systemvetenskap;

   Abstract : Distributional semantics allows models of linguistic meaning to be derived from observations of language use in large amounts of text. By modeling the meaning of words in semantic (vector) space on the basis of co-occurrence information, distributional semantics permits a quantitative interpretation of (relative) word meaning in an unsupervised setting, i. READ MORE

5. 3. Computer Assisted Video Microscopy : in Characterization of Capillary Ensembles

   Author : Claes Asker; Linköpings universitet; []
   Keywords : computer assisted video microscopy; capillary loops; capillary ensembles; skin microcirculation; triangulation; nearest neighbour; MEDICINE;

   Abstract : This thesis focuses on evaluation and analysis of capillary microcirculatory changes in the skin, that can be improved and extended by computer assisted video microscopy. Capillary microscopy has been used extensively, both in clinical practice and research, to study different phenomena in the microvasculature of the skin, mainly in the nailfold of fingers and toes where a large portion of the capillary loop can be observed. READ MORE

6. 4. Ensembles for sequence learning

   Author : Christos Dimitrakakis; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

   Abstract : .... READ MORE

7. 5. Formal Verification of Tree Ensembles in Safety-Critical Applications

   Author : John Törnblom; Simin Nadjm-Tehrani; Ingemar Söderquist; Joao Marques-Silva; Linköpings universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Formal verification; Machine learning; Tree ensembles;

   Abstract : In the presence of data and computational resources, machine learning can be used to synthesize software automatically. For example, machines are now capable of learning complicated pattern recognition tasks and sophisticated decision policies, two key capabilities in autonomous cyber-physical systems. READ MORE