Sökning: "tree structure"
Visar resultat 1 - 5 av 197 avhandlingar innehållade orden tree structure.
1. Tree Structures in Broadcast Encryption
Sammanfattning : The need for broadcast encryption arises when a sender wishes to securely distribute messages to varying subsets of receivers, using a broadcast channel, for instance in a pay-TV scenario. This is done by selecting subsets of users and giving all users in the same subset a common decryption key. LÄS MER
2. Tree Transformations in Inductive Dependency Parsing
Sammanfattning : This licentiate thesis deals with automatic syntactic analysis, or parsing, of natural languages. A parser constructs the syntactic analysis, which it learns by looking at correctly analyzed sentences, known as training data. The general topic concerns manipulations of the training data in order to improve the parsing accuracy. LÄS MER
3. Tree Transformations in Inductive Dependency Parsing
Sammanfattning : This licentiate thesis deals with automatic syntactic analysis, or parsing, of natural languages. A parser constructs the syntactic analysis, which it learns by looking at correctly analyzed sentences, known as training data. The general topic concerns manipulations of the training data in order to improve the parsing accuracy. LÄS MER
4. Genetic structure and dispersal in plant populations
Sammanfattning : This thesis focuses on the spatial structure and methods to identify spatial structure in plants. Methods that investigate genetic structure can mainly be divided into equilibrium methods that reveal summed dispersal over many generations, and cluster methods, that reveal more recent dispersal events. LÄS MER
5. Lock-free Concurrent Search
Sammanfattning : The contemporary computers typically consist of multiple computing cores with high compute power. Such computers make excellent concurrent asynchronous shared memory system. LÄS MER