All Outputs (115)

Generating summary documents for a variable-quality PDF document collection (2014)
Conference Proceeding

The Cochrane Schizophrenia Group’s Register of studies details all aspects of the effects of treating people with schizophrenia. It has been gathered over the last 20 years and consists of around 20,000 documents, overwhelmingly in PDF. Document coll... Read More about Generating summary documents for a variable-quality PDF document collection.

A new weighting scheme and discriminative approach for information retrieval in static and dynamic document collections (2014)
Conference Proceeding

This paper introduces a new weighting scheme in information retrieval. It also proposes using the document centroid as a threshold for normalizing documents in a document collection. Document centroid normalization helps to achieve more effective inf... Read More about A new weighting scheme and discriminative approach for information retrieval in static and dynamic document collections.

Finding information about mental health in microblogging platforms: a case study of depression (2014)
Conference Proceeding

Searching for online health information has been well studied in web search, but social media, such as public microblogging services, are well known for different types of tacit information: personal experience and shared information. Finding useful... Read More about Finding information about mental health in microblogging platforms: a case study of depression.

A user defined taxonomy of factors that divide online information retrieval sessions (2014)
Conference Proceeding

Although research is increasingly interested in session-based retrieval, comparably little work has focused on how best to divide web histories into sessions. Most automated attempts to divide web histories into sessions have focused on dividing web... Read More about A user defined taxonomy of factors that divide online information retrieval sessions.

The Effects of the Planning Horizon on Heathrow TSAT Allocation (2014)
Conference Proceeding

A two-stage stochastic mixed-integer program modelling and hybrid solution approach to portfolio selection problems (2014)
Journal Article

In this paper, we investigate a multi-period portfolio selection problem with a comprehensive set of real-world trading constraints as well as market random uncertainty in terms of asset prices. We formulate the problem into a two-stage stochastic mi... Read More about A two-stage stochastic mixed-integer program modelling and hybrid solution approach to portfolio selection problems.

Decidable model-checking for a resource logic with production of resources (2014)
Conference Proceeding

Several logics for expressing coalitional ability under resource bounds have been proposed and studied in the literature. Previous work has shown that if only consumption of resources is considered or the total amount of resources produced or consume... Read More about Decidable model-checking for a resource logic with production of resources.

Uncertainty representation of grey numbers and grey sets (2014)
Journal Article

In the literature there is a presumption that a grey set and an interval-valued fuzzy set are equivalent. This presumption ignores the existence of discrete components in a grey number. In this paper new measurements of uncertainties of grey numbers... Read More about Uncertainty representation of grey numbers and grey sets.

Workforce scheduling and routing problems: literature survey and computational study (2014)
Journal Article

In the context of workforce scheduling, there are many scenarios in which personnel must carry out tasks at different locations hence requiring some form of transportation. Examples of these type of scenarios include nurses visiting patients at home,... Read More about Workforce scheduling and routing problems: literature survey and computational study.

The A2 gene of alcelaphine herpesvirus-1 is a transcriptional regulator affecting cytotoxicity in virus-infected T cells but is not required for malignant catarrhal fever induction in rabbits (2014)
Journal Article

Alcelaphine herpesvirus-1 (AlHV-1) causes malignant catarrhal fever (MCF). The A2 gene of AlHV-1 is a member of the bZIP transcription factor family. We wished to determine whether A2 is a virulence gene or not and whether it is involved in pathogene... Read More about The A2 gene of alcelaphine herpesvirus-1 is a transcriptional regulator affecting cytotoxicity in virus-infected T cells but is not required for malignant catarrhal fever induction in rabbits.

Towards the development of a simulator for investigating the impact of people management practices on retail performance (2014)
Book Chapter

Often models for understanding the impact of management practices on retail performance are developed under the assumption of stability, equilibrium and linearity, whereas retail operations are considered in reality to be dynamic, non-linear and comp... Read More about Towards the development of a simulator for investigating the impact of people management practices on retail performance.

Programming by Example Using Least General Generalizations (2014)
Conference Proceeding

Recent advances in Programming by Example (PBE) have supported new applications to text editing, but existing approaches are limited to simple text strings. In this paper we address transformations in richly formatted documents, using an approach bas... Read More about Programming by Example Using Least General Generalizations.

Some constructions on ?-groupoids (2014)
Conference Proceeding

Weak ω-groupoids are the higher dimensional generalisation of setoids and are an essential ingredient of the construc- tive semantics of Homotopy Type Theory [10]. Following up on our previous formalisation [3] and Brunerie’s notes [5], we present a... Read More about Some constructions on ?-groupoids.

A fuzzy directional distance measure (2014)
Conference Proceeding

The measure of distance between two fuzzy sets is a fundamental tool within fuzzy set theory, however, distance measures currently within the literature use a crisp value to represent the distance between fuzzy sets. A real valued distance measure is... Read More about A fuzzy directional distance measure.

A constructive approach to examination timetabling based on adaptive decomposition and ordering (2014)
Journal Article

In this study, we investigate an adaptive decomposition and ordering strategy that automatically divides examinations into difficult and easy sets for constructing an examination timetable. The examinations in the difficult set are considered to be h... Read More about A constructive approach to examination timetabling based on adaptive decomposition and ordering.

SEG-SSC: a framework based on synthetic examples generation for self-labeled semi-supervised classification (2014)
Journal Article

Self-labeled techniques are semi-supervised classification methods that address the shortage of labeled examples via a self-learning process based on supervised models. They progressively classify unlabeled data and use them to modify the hypothesis... Read More about SEG-SSC: a framework based on synthetic examples generation for self-labeled semi-supervised classification.

Adaptive selection of heuristics for improving exam timetables (2014)
Journal Article

This paper presents a hyper-heuristic approach which hybridises low-level heuristic moves to improve timetables. Exams which cause a soft-constraint violation in the timetable are ordered and rescheduled to produce a better timetable. It is observed... Read More about Adaptive selection of heuristics for improving exam timetables.

A heuristic algorithm based on multiassignment procedures for nurse scheduling (2014)
Journal Article

This paper tackles a Nurse Scheduling Problem which consists of generating work schedules for a set of nurses while considering their shift preferences and other requirements. The objective is to maximize the satisfaction of nurses? preferences and m... Read More about A heuristic algorithm based on multiassignment procedures for nurse scheduling.

A multi-objective hyper-heuristic based on choice function (2014)
Journal Article

Hyper-heuristics are emerging methodologies that perform a search over the space of heuristics in an attempt to solve difficult computational optimization problems. We present a learning selection choice function based hyper-heuristic to solve multi-... Read More about A multi-objective hyper-heuristic based on choice function.

Tuning a multiple classifier system for side effect discovery using genetic algorithms (2014)
Conference Proceeding

In previous work, a novel supervised framework implementing a binary classifier was presented that obtained excellent results for side effect discovery. Interestingly, unique side effects were identified when different binary classifiers were used wi... Read More about Tuning a multiple classifier system for side effect discovery using genetic algorithms.