## Search

Now showing items 1-10 of 45

#### An evolutionary discretized Lambert approach for optimal long-range rendezvous considering impulse limit

(2019-09-18)

In this paper, an approach is presented for finding the optimal long-range space rendezvous in terms of fuel and time, considering limited impulse. In this approach , the Lambert problem is expanded towards a discretized ...

#### Analyzing rare event, anomaly, novelty and outlier detection terms under the supervised classification framework

(2019-09-01)

In recent years, a variety of research areas have contributed to a set of related problems with rare event, anomaly, novelty and outlier detection terms as the main actors. These multiple research areas have created a ...

#### Optimal multi-impulse space rendezvous considering limited impulse using a discretized Lambert problem combined with evolutionary algorithms

(2019-07-01)

In this paper, a direct approach is presented to tackle the multi-impulse rendezvous problem considering the impulse limit. Particularly, the standard Lambert problem is extended toward several consequential orbit transfers ...

#### A mathematical analysis of edas with distance-based exponential models

(2019-07-01)

Estimation of Distribution Algorithms have been successfully used for solving many combinatorial optimization problems. One type of problems in which Estimation of Distribution Algorithms have presented strong competitive ...

#### Early classification of time series using multi-objective optimization techniques

(2019-04-23)

In early classification of time series the objective is to build models which are able to make class-predictions for time series as accurately and as early as possible, when only a part of the series is available. It is ...

#### On-line Elastic Similarity Measures for time series

(2019-04)

The way similarity is measured among time series is of paramount importance in many data mining and machine learning tasks. For instance, Elastic Similarity Measures are widely used to determine whether two time series are ...

#### Mallows and generalized Mallows model for matchings

(2019-02-25)

The Mallows and Generalized Mallows Models are two of the most popular probability models for distribu- tions on permutations. In this paper, we consider both models under the Hamming distance. This models can be seen as ...

#### Sentiment analysis with genetically evolved Gaussian kernels

(2019)

Sentiment analysis consists of evaluating opinions or statements based on text analysis. Among the methods used to estimate the degree to which a text expresses a certain sentiment are those based on Gaussian Processes. ...

#### Hybrid Heuristics for the Linear Ordering Problem

(2019)

The linear ordering problem (LOP) is one of the classical NP-Hard combinatorial optimization problems. Motivated by the difficulty of solving it up to optimality, in recent decades a great number of heuristic and meta-heuristic ...

#### Characterising the rankings produced by combinatorial optimisation problems and finding their intersections

(2019)

The aim of this paper is to introduce the concept of intersection between combinatorial optimisation problems. We take into account that most algorithms, in their machinery, do not consider the exact objective function ...