Digital Commons Network^™

Tiled Time Delay Estimation In Mobile Cloud Computing Environments, Ruairí De Fréin

Conference papers

We present a tiled delay estimation technique in the context of Mobile Cloud Computing (MCC) environments. We examine its accuracy in the presence of multiple sources for (1) sub-sample delays and also (2) in the presence of phase-wrap around. Phase wrap-around is prevalent in MCC because the separation of acoustic sources may be large. We show that tiling a histogram of instantaneous phase estimates can improve delay estimates when phase-wrap around is sig- nificantly present and also when multiple sources are present. We report that error in the delay estimator is generally less than 5% of a sample, when the …

Towards Approaches And Techniques For Analysing Wifi Location Data, John Mcauley, Clement Roux, James Little

Conference papers

Citieshaveanincreasinglydensenetworkofconnectedaccess points that enable individuals and groups to access the web on a range of different devices. Although, in most cases, the data collected from these networks is anonymised, when aggregated, it provides a rich illustration of how cities, public places and urban spaces are used. However, making use of this data can prove challenging as rarely, due to anonymization and data protection measures, is the data labelled and often the accuracy of the location information is questionable. Given these constraints, we have investigated a set of methods that can be applied to anonymous WiFi- location-based data. Through two specific …

Level 1 Before Level 2 – The Irish Bim Mandate, Robert Moore

Conference papers

Government Contracts Committee for Construction (GCCC) has prepared a position paper titled ‘A Public Sector BIM Adoption Strategy’, which outlines the context and rationale for the adoption of BIM and puts forward a proposed timeline for adoption, the purpose of this position paper is to invite a response from industry [1]. This paper analyses the position paper on the subject of the implementation of the proposed mandate. The author defines what is implied by UK BIM Levels 0, 1, 2 and 3, and collates the responses from industry to the position paper regarding the implementation plan. This position paper is …

Ireland’S Bim Macro Adoption Study: Establishing Ireland’S Bim Maturity, Barry Mcauley, Alan Hore, Roger West, Mohamad Kassem, Shiyao Kuang

Conference papers

Since 2016 the BIM Innovation Capability Programme (BICP) has captured the capability of the Irish Construction Industry’s and the Higher Education Institutes’ (HEIs) response to the increased requirement for BIM on Irish construction and engineering projects. One of the primary responsibilities of the BICP research team is to collate data to assist the National BIM Council of Ireland in the formulation of a National BIM Roadmap. To assist the Council with this task the BICP research team applied five macro BIM maturity conceptual models to assess Ireland’s BIM maturity. The results from the models were further utilised to develop a …

Stewardship Of International Bim Programmes: Lessons For Ireland, Barry Mcauley, Alan Hore, Roger West, Shiyao Kuang

Conference papers

The support by central government of national Building Information Modelling (BIM) programmes is common throughout the developed world today. To further understand how the different international governments have supported their BIM programmes the BIM Innovation Capability Programme (BICP) research team in Ireland recently completed a comprehensive Global BIM Study to help inform the National BIM Council (NBC) of Ireland in developing a Roadmap to Digital Transition for Ireland’s Construction Sector. This paper details the findings of a more concentrated investigation on a selection of jurisdictions on how particular international BIM programmes are orgainsed, managed and the level of governmental support …

Working From Home: A Double Edged Sword, Kathleen Farrell

Conference papers

The purpose of this paper is to investigate how working from home can be optimally managed to achieve greater work/ home harmony. Critics assert that employees who are not office-based are "actually not working". The following are challenges of working from home

-The difficulty in separating home from work

-Self- imposed pressure of working endlessly and

-The feeling of being alienated from companies’ major decisions and sometimes promotions.

Otani (2015) argues for flexibility and cites Sheryl Sandberg, Facebooks Chief Operating Officer as making the point that it is more important to measure the results rather than watching people "try". Even …

How Are We Being Informed About Climate Change?, Elisa Perpignan, Oluwasegun O. Seriki, Rollis Jiofack, Derrick Agyapong

Conference papers

Scientific poster ‘How is Europe being informed about Climate Change?’ This poster was presented as part of the research results that have been delivered on behalf of the Women Partnership for the 'Climate change, migration & me Challenge' which was organised part of the Young Water Professional program of the Amsterdam International Water Week.

The poster won the second prize with the team comprising Elisa Perpignan, Derrick Agyapong, Rollis Jiofack, Oluwasegun Seriki (participating online out of respectively Ghana, Burkina Faso and Ireland), from the case: European Pact for Water. The team was selected to attend the Planetary Security Conference – …

What Lessons Can Be Learned From The Delivery Of The First Building On The Grangegorman Campus Using Building Information Management (Bim)?, Pat O'Sullivan, Avril Behan

Conference papers

There is an acceptance that BIM, via data management, can be integrated with FM to reduce costs during the Operations and Maintenance stage of a project. However, what has not been documented is the ‘on the ground’ reality which can be reviewed as a lessons learnt exercise to improve the implementation of BIM FM for future projects. This case study sets out to explore the realities of a client’s adoption of BIM based upon the actual experience of the Greenway Hub. Rather than relying on anecdotal evidence the research was based upon the real practices and experiences of the Dublin …

Mass-Balance Assimilative Capacity Model Of Inniscarra Reservoir, Zeinab Bedri, Ahmed Nasr, Sean Crowley

Conference papers

Wastewater arising from the Coachford agglomeration is treated at the existing Coachford Waste Water Treatment Plant (WWTP). This wastewater treatment facility has a primary treatment only with a design capacity of 450 population equivalent (PE) and it discharges the effluent into the Inniscarra Reservoir. The discharge from Coachford WWTP has been identified by the Lower Lee - Owenboy Water Management Unit Action Plan (WMUAP) as a point source pressure on the waters of the Lower Lee - Owenboy catchment and also as a cause of the strongly eutrophic status of Inniscarra Reservoir water quality by the EPA in 2009. Therefore, …

Weighting The Perceived Importance Of Minimising Economic, Social And Environmental/Cultural Risks In Flood Risk Management, Zeinab Bedri, John O'Sullivan, Mark Adamson

Conference papers

In 2006, the Office of Public Works (OPW) began the National Catchment-based Flood Risk Assessment and Management (CFRAM) Programme through a series of pilot studies. A Multi-Criteria Analysis (MCA) Framework was developed through the CFRAM pilot studies that integrated a range of objectives related to human health and society, the environment and cultural heritage and the economy into the core process of selecting suitable flood risk management measures for a given area or location, and then for prioritising national investments for different schemes and projects. In support of this MCA framework, UCD, was commissioned to undertake a collaborative study with …

Establishing The Key Pillars Of Innovation Required To Execute A Successful Bim Strategy Within A Construction Sme In Ireland, Barry Mcauley, Patrick Carroll

Conference papers

The recent resurgence of the Irish Construction Industry comes at a time of global transition towards an information revolution, with technology now playing a vital role within our post-recessionary society. BIM is now seen as a core technology at the forefront of this transformational change which can present Construction SMEs with opportunities to new financial ventures. If any SME organisation is to be successful with BIM adoption then innovation must be the starting point. The aim of this paper is to establish the enabling factors required for innovating a BIM strategy within a SME Construction Organisation. The methodology involved a …

A Comparative Investigation Of Industry, Academics' And Students' Perceptions On Essential Sustainability Knowledge, Competencies And Skills, Lloyd Scott

Conference papers

Design and construction educational programmes offered throughout the world play a vital role in sustainability education by producing professionals knowledgeable and competent in sustainable practices. It is extremely important to align the sustainability knowledge of the graduates to the industry expectations. This paper compares industry expectations about essential sustainability knowledge with both academics and students perceptions of requisite knowledge about sustainability. A three stage mixed research approach was adopted for the study. Essential sustainability knowledge expected from recent graduates was identified through literature review and surveys of architectural design and construction firms. Students enrolled in architecture and construction programmes were …

Working From Home: A Double-Edged Sword, Kathleen Farrell

Conference papers

Flexible work options can be considered a benefit for many people. One type of flexible work option is working from home. Many businesses do provide some form of flexibility for mothers and parents working outside the home but this is influenced by culture and geographic location e.g. Pakistan is slow to embrace working from home policies while in western cultures or in more developed states, there are people who advocate that work from home policies should become the norm. The purpose of this paper is to investigate how working from home can be optimally managed to achieve greater work/ home …

On Demonstrating The Impact Of Defeasible Reasoning Via A Multi-Layer Argument-Based Framework (Doctoral Consortium), Lucas Middeldorf Rizzo

Conference papers

Promising results have indicated Argumentation Theory as a solid research area for implementing defeasible reasoning in practice. However, applications are usually domain dependent, not incorporating all the layers and steps required in an argumentation process, thus limit- ing their applicability in different areas. This PhD project is focused on the development of a multi-layer defeasible argument-based framework which is in turn used across different applications in the fields of decision making and knowledge representation and reasoning. The inference produced is compared against the inference of different quantitative theories of reasoning under uncertainty such as expert systems and fuzzy logic. The …

Aphonic: Adaptive Thresholding For Noise Cancellation In Smart Mobile Environments, Ruairí De Fréin

Conference papers

We propose a signal-channel, adaptive threshold selection technique for binary mask construction, namely APHONIC, (AdaPtive tHreshOlding for NoIse Cancellation) for smart mobile environments. Using this mask, we introduce two noise cancellation techniques that perform robustly in the presence of real-world interfering signals that are typically encountered by mobile users: a violin busker, a subway and busy city square sounds. We demonstrate that when the power of the time-frequency components of the voice of a mobile user does not significantly overlap with the components of the interference signal, the threshold learning and noise cancellation techniques significantly improve the Signal-to-Interference Ratio (SIR) …

Critical Media Literacies: Collaboration And Partnership, Sarah-Anne Kennedy, Roisin Guilfoyle

Conference papers

“We are far more united and have far more in common with each other than things that divide us.” –Jo Cox

“The BAI has chosen to publish this document in the spirit of collaboration and in the hope that the framework will help all stakeholders and recognise what role they can play and identify opportunities for collaboration” -Broadcasting Authority of Ireland (BAI)

Media Literacy Policy Critical Media Literacies: Collaboration and Partnership with Information Literacy Sarah-Anne Kennedy, Assistant Librarian, DIT Library Services Roisin Guilfoyle, Assistant Librarian, DIT Library Services.

Both Librarians and Academics working in media disciplines are involved in teaching …

A Whole New Ballgame: Does Participating In A Walking Football Club Lead To Increased Levels Of Social Engagement?, Aiden Carthy, John Byrne, John Barrie

Conference papers

No abstract provided.

Increasing The Adoption Of Aal Solutions, Senior Centred Iot, Workshop 9, John Mcgrory, Matteo Zallio

Conference papers

A number of workshops were delivered to attendees on various topics relating to the forum. This workshop was "Increasing the adoption of AAL solutions, Senior Centred IoT, Workshop 9". It was a hands-on workshop and the presentation provided here was used to guide the attendees during that activity.

Improving Engagement Of Construction Industry Firms In Apprenticeship Training In A Post-Recession Economy, Eoghan Ó Murchadha, Roisin Murphy

Conference papers

The Irish economy is currently experiencing a recovery phase following a ‘lost decade’ of growth due to the severe economic downturn of 2007. While the construction industry in Ireland is recording increased output, and improving rates of employment, in the vital economic and labour market sector of apprenticeship there is a significant lack of engagement. Without employer buy-in to apprenticeship training, there exists potential future skills gaps and lack of efficacy of the construction industry. This increasingly likely possibility is disquieting, not just for the possible impact upon the future of apprenticeship but also for the Irish economy as a …

Memories And The Wine Tourism Experience, Margaret Connolly

Conference papers

No abstract provided.

Reliability Analysis Of Active Earth Pressure For Cantilever Walls On Mudflows And Residual Soils Of The Aburrá Valley, Juan David Castro, Juan Camilo Viviescas, Juan Pablo Osorio

Conference papers

According to the variability of the local geology of the Aburrá Valley, two geological strata with similar grain size distribution were analyzed. The geologies are composed of mudflows and residual soils from the San Diego stock in the Poblado neighborhood. These soils show a similar mechanical behavior in relation to the number of blows of the standard penetration test SPT. The analysis was carried out by reliability methods for the determination of the active earth pressure for the geotechnical design of a cantilever walls. The analysis consists in the variation of the height of the retaining wall between 1 and …

Geology Influence In The Slope Stability Analysis By Limit Equilibrium, Finite Elements And Random Finite Elements Methods, Juan Camilo Viviescas, Juan Pablo Osorio

Conference papers

Slope stability analyzes correspond to the evaluation of the safety factors commonly performed through the limit equilibrium and finite element methods. Due to the uncertainty of the geotechnical parameters, different statistical methods have emerged such as the limit equilibrium combined with the Monte Carlo simulation method and the random finite elements, which have been widely accepted in recent years. Normally, these analyzes are not performed taking into account the geological influence on the geotechnical properties, so in this work we proceed with the comparison of several geometrical typologies of slopes for mudflows and a residual soils of the Stock San …

Streaming Vr For Immersion: Quality Aspects Of Compressed Spatial Audio, Miroslaw Narbutt, Sean O’Leary, Andrew Allen, Jan Skoglund, Andrew Hines

Conference papers

Delivering a 360-degree soundscape that matches full sphere visuals is an essential aspect of immersive VR. Ambisonics is a full sphere surround sound technique that takes into account the azimuth and elevation of sound sources, portraying source location above and below as well as around the horizontal plane of the listener. In contrast to channel-based methods, ambisonics representation offers the advantage of being independent of a specific loudspeaker set-up. Streaming ambisonics over networks requires efficient encoding techniques that compress the raw audio content without compromising quality of experience (QoE). This work investigates the effect of audio channel compression via the …

The Automation Of Bim For Compliance Checking: A Visual Programming Approach, Jonathan Reinhardt, Malachy Mathews

Conference papers

A study by FIATECH confirmed that human interpretation causes inconsistencies in applying building compliance & regulations (Solihin & Eastman, 2015). Producing, updating and quality assuring such processes is inconsistent and unreliable (Preidel & Borrmann, 2016). A barrier to interpretation of building regulations is that software is designed by developers that are separate to local authorities (Solihin & Eastman, 2015). The current literature suggests Singapore, Norway, USA & Australia have all implemented BIM automation systems for building regulations. This study reviews current automation systems and based on this proposes a system of creating a checking system is efficient in the control …

Strategic Management In Irish Construction Professional Service Firms: A Comparative Study Across Professions, Oluwasegun Seriki, Roisin Murphy

Conference papers

The Irish construction industry has undergone substantial change in the past decade. Following a deep, lengthy recession the improving outlook of the construction sector makes the inquiry into strategy within the firms both timely and appropriate. Determining how construction organizations successfully adapt in a highly turbulent industry is critical to ensure survival in a highly cyclical industry sector. Strategizing in construction professional service firms (CPSFs) is not well documented, and there is little understanding of the strategy processes, and implications of these processes in the firms. As part of an ongoing study, the strategic management process in CPSFs is reviewed …

Idiom Type Identification With Smoothed Lexical Features And A Maximum Margin Classifier, Giancarlo Salton, Robert J. Ross, John D. Kelleher

Conference papers

In our work we address limitations in the state-of-the-art in idiom type identification. We investigate different approaches for a lexical fixedness metric, a component of the state-of-the-art model. We also show that our Machine Learning based approach to the idiom type identification task achieves an F1-score of 0.85, an improvement of 11 points over the state-of-the-art.

Chaos-Based Encryption Keys And Neural Key-Store For Cloud-Hosted Data Confidentiality, N.N Mosola, M.T Dlamini, Jonathan Blackledge, J.H.P Eloff, H.S Venter

Conference papers

Cloud computing brings flexible and cost-effective services. However, security concerns plague the cloud. Data confidentiality is one of the security concerns inhibiting the adoption of cloud computing. This concern stems from various cyberattacks directed towards gaining unauthorised access to cloud-bound or cloud-hosted data. This paper proposes a clientend encryption and key management system to curb cyberattacks that target compromising data confidentiality on the cloud.

Csi4 : A Curriculum For Ensuring More Employable Ict Graduates, Deirdre Lillis

Conference papers

ICT skills shortages worldwide can be met by global software innovators that can work in any sector. HubLinked, a partnership of 11 industry and HE partners in the EU and Korea, is developing an integrated CSI4 curriculum for industry-oriented, internationalised, innovation-focused and interdisciplinary Computer Science degrees. CSI4 features Global Labs, where teams of students work across timezones to prototype software, an IaH experience which mimics working in a global ICT company.

Analysis Of Traffic Collisions In Dublin Using Gis Based System, Jagteshwar Singh, Niamh O' Reilly

Conference papers

This study aims to analyse traffic collisions in the Greater Dublin Region between the period 2006-2012, using GIS to identify hotspots and examine the relationship between collisions and a range of contributory factors including vehicular speeds, traffic volume, road curvature, road category and distance from intersection that could enable prediction of traffic collisions. To this end, Road Safety Authority (RSA) collision data for Dublin Region geocoded as point events, road profiles, traffic flow characteristics on which these occur are spatially merged using ArcGIS and FME software to establish if a significant relationship exists between collision frequencies on road links and …

Bim+Blockchain: A Solution To The Trust Problem In Collaboration?, Malachy Mathews, Dan Robles, Brian Bowe

Conference papers

This paper provides an overview of historic and current organizational limitations emerging in the Architecture, Engineering, Construction, Building Owner / Operations (AECOO) Industry. It then provides an overview of new technologies that attempt to mitigate these limitations. However, these technologies, taken together, appear to be converging and creating entirely new organizational structures in the AEC industries. This may be characterized by the emergence of what is called the Network Effect and it’s related calculus. This paper culminates with an introduction to Blockchain Technology (BT) and it’s integration with the emergence of groundbreaking technologies such as Internet of Things (IoT), Artificial …