Author image not provided
 Charalampos Chelmis

Authors:
Add personal information
  Affiliation history
Bibliometrics: publication history
Average citations per article0.68
Citation Count15
Publication count22
Publication years2009-2017
Available for download12
Average downloads per article133.42
Downloads (cumulative)1,601
Downloads (12 Months)277
Downloads (6 Weeks)42
SEARCH
ROLE
Arrow RightAuthor only


AUTHOR'S COLLEAGUES
See all colleagues of this author

SUBJECT AREAS
See all subject areas




BOOKMARK & SHARE


22 results found Export Results: bibtexendnoteacmrefcsv

Result 1 – 20 of 22
Result page: 1 2

Sort by:

1 published by ACM
June 2017 WebSci '17: Proceedings of the 2017 ACM on Web Science Conference
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 10,   Downloads (12 Months): 59,   Downloads (Overall): 59

Full text available: PDFPDF
Detecting outliers and anomalies in data is vital in numerous applications in areas such as security, finance, health care, and online social media. Such dynamic systems can be modeled as graphs that change over time. Even though considerable work has been performed on finding points in time at which a ...
Keywords: anomaly summarization, structural change interpretation, change attribution, dynamic graph

2
December 2016 IEEE Transactions on Parallel and Distributed Systems: Volume 27 Issue 12, December 2016
Publisher: IEEE Press
Bibliometrics:
Citation Count: 0

Prosumers or proactive consumers are steadily on the rise in emerging Smart Grid systems. These consumers, apart from their traditonal role of using energy from the grid, also are actively involved in individually transferring stored energy from renewable sources such as wind and solar, to the grid. The large-scale integration ...

3
July 2016 IJCAI'16: Proceedings of the Twenty-Fifth International Joint Conference on Artificial Intelligence
Publisher: AAAI Press
Bibliometrics:
Citation Count: 0

The combination of data, semantics, and the Web has led to an ever growing and increasingly complex body of semantic data. Accessing such structured data requires learning formal query languages, such as SPARQL, which poses significant difficulties for non-expert users. Many existing interfaces for querying Ontologies are based on approaches ...

4
July 2016 IJCAI'16: Proceedings of the Twenty-Fifth International Joint Conference on Artificial Intelligence
Publisher: AAAI Press
Bibliometrics:
Citation Count: 0

Demand Response (DR) allows utilities to curtail electricity consumption during peak demand periods. Real time automated DR can offer utilities a scalable solution for fine grained control of curtailment over small intervals for the duration of the entire DR event. In this work, we demonstrate a system for a real ...

5
April 2016 WWW '16 Companion: Proceedings of the 25th International Conference Companion on World Wide Web
Publisher: International World Wide Web Conferences Steering Committee
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 3,   Downloads (12 Months): 19,   Downloads (Overall): 59

Full text available: PDFPDF
Several applications including community detection in social networks and discovering correlated genes involve finding large subgraphs of high density. We propose the problem of finding the largest subgraph of a given density. The problem is a generalization of the Max-Clique problem which seeks the largest subgraph that has an edge ...
Keywords: dense subgraphs, social networks, discrete otimization

6
October 2015 BIG DATA '15: Proceedings of the 2015 IEEE International Conference on Big Data (Big Data)
Publisher: IEEE Computer Society
Bibliometrics:
Citation Count: 0

The pervasive deployment of advanced sensing infrastructure in Cyber-Physical systems, such as the Smart Grid, has resulted in an unprecedented data explosion. Such data exhibit both large volumes and high velocity characteristics, two of the three pillars of Big Data, and have a time-series notion as datasets in this context ...

7 published by ACM
August 2015 ASONAM '15: Proceedings of the 2015 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining 2015
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 3,   Downloads (12 Months): 36,   Downloads (Overall): 159

Full text available: PDFPDF
Often in marketing, political campaigns and social media, two competing products or opinions propagate over a social network. Studying social influence in such competing cascades scenarios enables building effective strategies for maximizing the propagation of one process by targeting the most "influential" nodes in the network. The majority of prior ...
Keywords: diffusion models, analytical framework, social influence, social networks

8 published by ACM
July 2015 e-Energy '15: Proceedings of the 2015 ACM Sixth International Conference on Future Energy Systems
Publisher: ACM
Bibliometrics:
Citation Count: 1
Downloads (6 Weeks): 3,   Downloads (12 Months): 16,   Downloads (Overall): 53

Full text available: PDFPDF
Demand response (DR) is used in smart grids to shape customer load during peak hours. Automated DR offers utilities a fine grained control and a high degree of confidence in the outcome. However the impact on the customer's comfort means this technique is more suited for industrial and commercial settings ...

9 published by ACM
July 2015 e-Energy '15: Proceedings of the 2015 ACM Sixth International Conference on Future Energy Systems
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 6,   Downloads (12 Months): 23,   Downloads (Overall): 105

Full text available: PDFPDF
The advent of smart meters and advanced communication infrastructures catalyzes numerous smart grid applications such as dynamic demand response, and paves the way to solve challenging research problems in sustainable energy consumption. The space of solution possibilities are restricted primarily by the huge amount of generated data requiring considerable computational ...
Keywords: online algorithm, time series, clustering, demand response

10 published by ACM
July 2015 e-Energy '15: Proceedings of the 2015 ACM Sixth International Conference on Future Energy Systems
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 4,   Downloads (12 Months): 27,   Downloads (Overall): 53

Full text available: PDFPDF
Accurate estimation and evaluation of consumption reduction achieved by participants during Demand Response is critical to Smart Grids. We perform an in-depth study of popular estimation methods used to determine the extent of consumption shedding during DR, using a real-world Smart Grid dataset from the University of Southern California campus ...
Keywords: load forecasting, baseline models, reduced consumption

11
May 2015 IPDPSW '15: Proceedings of the 2015 IEEE International Parallel and Distributed Processing Symposium Workshop
Publisher: IEEE Computer Society
Bibliometrics:
Citation Count: 0

Unprecedented growth of online social networks, communication networks and internet of things have given birth to large volume, fast changing datasets. Data generated from such systems have an inherent graph structure in it. Updates in staggering frequencies (e.g. edges created by message exchanges in online social media) impose a fundamental ...
Keywords: graph processing, bulk synchronous parallel, incremental computation

12
May 2015 IPDPSW '15: Proceedings of the 2015 IEEE International Parallel and Distributed Processing Symposium Workshop
Publisher: IEEE Computer Society
Bibliometrics:
Citation Count: 1

Many real-world problems can be represented as graphs and solved by graph traversal algorithms. Single-Source Shortest Path (SSSP) is a fundamental graph algorithm. Today, large-scale graphs involve millions or even billions of vertices, making efficient parallel graph processing challenging. In this paper, we propose a single-FPGA based design to accelerate ...
Keywords: Large-Scale Graph, Single-Source Shortest Path, FPGA

13
January 2015 AAAI'15: Proceedings of the Twenty-Ninth AAAI Conference on Artificial Intelligence
Publisher: AAAI Press
Bibliometrics:
Citation Count: 1

Applications in sustainability domains such as in energy, transportation, and natural resource and environment monitoring, increasingly use sensors for collecting data and sending it back to centrally located processing nodes. While data can usually be collected by the sensors at a very high speed, in many cases, it can not ...

14 published by ACM
November 2013 ACM Transactions on Information Systems (TOIS): Volume 31 Issue 4, November 2013
Publisher: ACM
Bibliometrics:
Citation Count: 4
Downloads (6 Weeks): 8,   Downloads (12 Months): 59,   Downloads (Overall): 629

Full text available: PDFPDF
Social networks have become a popular medium for people to communicate and distribute ideas, content, news, and advertisements. Social content annotation has naturally emerged as a method of categorization and filtering of online information. The unrestricted vocabulary users choose from to annotate content has often lead to an explosion of ...
Keywords: Annotation, Last.fm, graphical models, topic models, unsupervised learning, collaborative tagging, social bookmarking, link recommendation, machine learning, social media, link prediction

15 published by ACM
August 2013 ASONAM '13: Proceedings of the 2013 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining
Publisher: ACM
Bibliometrics:
Citation Count: 2
Downloads (6 Weeks): 2,   Downloads (12 Months): 14,   Downloads (Overall): 172

Full text available: PDFPDF
Popular social networking sites have revolutionized the way people interact on the Web, enabling rapid information dissemination and search. In an enterprise, understanding how information flows within and between organizational levels and business units is of great importance. Despite numerous studies in information diffusion in online social networks, little is ...
Keywords: adoption dynamics, agent based computational models, diffusion of innovations, evolutionary models, influence

16 published by ACM
August 2013 ASONAM '13: Proceedings of the 2013 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 1,   Downloads (12 Months): 4,   Downloads (Overall): 106

Full text available: PDFPDF
To enhance human resource management and personalized information acquisition, employee ontology is used to model business concepts and relations between them for enterprises. In this paper, we propose an employee ontology that integrates user static properties from formal structures with dynamic interests and expertise extracted from informal communication signals. We ...

17 published by ACM
May 2013 MSM '13: Proceedings of the 4th International Workshop on Modeling Social Media
Publisher: ACM
Bibliometrics:
Citation Count: 0
Downloads (6 Weeks): 1,   Downloads (12 Months): 19,   Downloads (Overall): 151

Full text available: PDFPDF
As social media sites grow in popularity, tagging has naturally emerged as a method of searching, categorizing and filtering online information, especially multimedia content. The unrestricted vocabulary users choose from to annotate content however, has often lead to an explosion of the size of space in which search is performed. ...
Keywords: graphical models, unsupervised learning, user modeling, collaborative tagging, link recommendation, social media

18
January 2013
Bibliometrics:
Citation Count: 0

Complex networks arise everywhere. Online social networks are a famous example of complex networks due to: (a) revolutionizing the way people interact on the Web, and (b) permitting in practice the study of interdisciplinary theories that arise from human activities, at both micro (i.e., individual) and macro (i.e., community) level. ...

19
September 2012 SOCIALCOM-PASSAT '12: Proceedings of the 2012 ASE/IEEE International Conference on Social Computing and 2012 ASE/IEEE International Conference on Privacy, Security, Risk and Trust
Publisher: IEEE Computer Society
Bibliometrics:
Citation Count: 3

In social networks, where users send messages to each other, the issue of what triggers communication between unrelated users arises: does communication between previously unrelated users depend on friend-of-a-friend type of relationships, common interests, or other factors? In this work, we study the problem of predicting directed communication intention between ...
Keywords: social networking analysis, corporate microblogging, communication intention, social factors, prediction

20
August 2012 ASONAM '12: Proceedings of the 2012 International Conference on Advances in Social Networks Analysis and Mining (ASONAM 2012)
Publisher: IEEE Computer Society
Bibliometrics:
Citation Count: 1
Downloads (6 Weeks): 0,   Downloads (12 Months): 0,   Downloads (Overall): 40

Full text available: PDFPDF
Popular social networking sites have revolutionized the way people interact on the Web. Researchers have studied social networks from numerous perspectives, mostly focusing on publicly available social networks and microblogging sites. Enterprises however have recently being adopting and utilizing microblogging services as part of their day to day operations. The ...
Keywords: Twitter,Histograms,Correlation,Probability distribution,Focusing,Statistical analysis,analysis,micro-blogging,social networks,social media,enterprise,measurement



The ACM Digital Library is published by the Association for Computing Machinery. Copyright © 2018 ACM, Inc.
Terms of Usage   Privacy Policy   Code of Ethics   Contact Us