Sökning: "Functional data model"

Visar resultat 1 - 5 av 739 avhandlingar innehållade orden Functional data model.

  1. 1. Modeling financial volatility : A functional approach with applications to Swedish limit order book data

    Författare :Suad Elezovic; Xavier de Luna; Gunnar Rosenqvist; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Financial data; functional time series; multivariate generalized least squares; seemingly unrelated autoregression; Statistics; computer and systems science; Statistik; data- och systemvetenskap; ekonometri; Econometrics;

    Sammanfattning : This thesis is designed to offer an approach to modeling volatility in the Swedish limit order market. Realized quadratic variation is used as an estimator of the integrated variance, which is a measure of the variability of a stochastic process in continuous time. LÄS MER

  3. 2. Functional Programming for Securing Cloud and Embedded Environments

    Författare :Abhiroop Sarkar; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; trusted execution environment; real time; functional programming; runtime; information flow control; microcontrollers; functional reactive programming;

    Sammanfattning : The ubiquity of digital systems across all aspects of modern society, while beneficial, has simultaneously exposed a lucrative attack surface for potential adversaries and attackers. Consequently, securing digital systems becomes of critical importance. LÄS MER

  4. 3. A Uniform Query Processing Approach for Integrating Data from Heterogeneous Resources

    Författare :Merja Karjalainen; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Query processing; Functional data model; Rewrite rules; Data integration;

    Sammanfattning : Scientists who need to explore several different databases in theirresearch can find it difficult and tedious to extract and combineinformation from various heterogeneous data sources manually.This is a particular problem for researchers in the life sciences,since technical advances in the last decade have resulted in a dramaticincrease in the quantity and variety of data. LÄS MER

  5. 4. Embedded Languages for Data-Parallel Programming

    Författare :Joel Bo Svensson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Graphics Processing Units; Data-parallelism; Functional Programming; Embedded languages;

    Sammanfattning : Computers today are becoming more and more parallel. General purpose processors (CPUs) have multiple processing cores and Single Instruction Multiple Data (SIMD) units for data-parallelism. Graphics processors (GPUs) bring massive parallelism at the cost of being harder to program than CPUs. LÄS MER

  7. 5. Satisfying Non-Functional Requirements in Model-Driven Development of Real-Time Embedded Systems

    Författare :Mehrdad Saadatmand; Mikael Sjödin; Antonio Cicchetti; Radu Dobrin; Paul Pop; Mälardalens högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; non-functional requirements; model-driven development; real-time; embedded systems; Computer Science; datavetenskap;

    Sammanfattning : Design of real-time embedded systems is a complex and challenging task. Part of this complexity originates from their limited resources which incurs handling a big range of Non-Functional Requirements (NFRs). Therefore, satisfaction of NFRs plays an important role in the correctness of the design of these systems. LÄS MER