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Karl Aberer

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Publications associées (297)

On Leveraging Crowdsourcing Techniques for Schema Matching Networks

Karl Aberer, Quoc Viet Hung Nguyen, Zoltán Miklós, Thành Tâm Nguyên

As the volumes of shared datasets are likely to soar, there is high demand of establishing the interlinking between these public datasets. To achieve this, we need to match their schemas altogether. Moreover, to extract useful pieces of information, ones m ...

2013

Personalized Point-of-Interest Recommendation by Mining Users' Preference Transition

Karl Aberer, Xin Liu, Yong Liu

2013

Collaborative Schema Matching Reconciliation

Karl Aberer, Quoc Viet Hung Nguyen, Zoltán Miklós, Hoai Xuan Luong

Schema matching is the process of establishing correspondences between the attributes of database schemas for data integration purpose. Although several schema matching tools have been developed, their results are often incomplete or erroneous. To obtain c ...

2013

EnviroMeter: A Platform for Querying Community-Sensed Data

Karl Aberer, Saket Sathe, Dipanjan Chakraborty

Efficiently querying data collected from Large-area Communitydriven Sensor Networks (LCSNs) is a new and challenging problem. In our previous works, we proposed adaptive techniques for learning models (e.g., statistical, non-parametric, etc.) from such dat ...

2013

A Decentralized Recommender System for Effective Web Credibility Assessment

Karl Aberer, Alexandra Olteanu, Jean-Eudes Marie Ranvier

An overwhelming and growing amount of data is available online. The problem of untrustworthy online information is augmented by its high economic potential and its dynamic nature, e.g. transient domain names, dynamic content, etc. In this paper, we address ...

2012

Tag Recommendation for Large-Scale Ontology-Based Information Systems

Philippe Cudré-Mauroux, Karl Aberer, Alexey Boyarsky, Oleg Ruchayskiy, Roman Prokofyev

We tackle the problem of improving the relevance of automatically selected tags in large-scale ontology-based information systems. Contrary to traditional settings where tags can be chosen arbitrarily, we focus on the problem of recommending tags (e.g., co ...

Springer2012

Next Place Prediction using Mobile Data

Karl Aberer, Michele Catasta, Le Hung Tran, Lucas Kelsey McDowell

2012

OptiMoS: Optimal Sensing for Mobile Sensors

Karl Aberer, Julien Eberle, Zhixian Yan

Both sensor coverage maximization and energy cost minimization are the fundamental requirements in the design of real-life mobile sensing applications, e.g., (1) deploying environ- mental sensors (like CO2, fine particle measurement) on public transports t ...

2012

Topick: Accurate Topic Distillation from Users Streams

Karl Aberer, Anton Rosenov Dimitrov, Alexandra Olteanu, Lucas Kelsey McDowell

2012

Enabling Query Technologies for the Semantic Sensor Web

Karl Aberer, Jean Paul Calbimonte Perez, Ho Young Jeung

Sensor networks are increasingly being deployed in the environment for many different purposes. The observations that they produce are made available with heterogeneous schemas, vocabularies and data formats, making it difficult to share and reuse this dat ...

Igi Publ2012

Quality-aware similarity assessment for entity matching in Web data

Karl Aberer, Surender Reddy Yerva, Zoltán Miklós

One of the key challenges to realize automated processing of the information on the Web, which is the central goal of the Semantic Web, is related to the entity matching problem. There are a number of tools that reliably recognize named entities, such as p ...

Wiley-Blackwell2012

Game-theoretic Models of Web Credibility

Karl Aberer

Research on Web credibility assessment can significantly benefit from new models that are better suited for evaluation and study of adversary strategies. Currently employed models lack several important aspects, such as the explicit modeling of Web content ...

ACM2012

Deriving Semantic Sensor Metadata from Raw Measurements

Karl Aberer, Jean Paul Calbimonte Perez, Zhixian Yan, Ho Young Jeung

CEUR-WS2012

A Decentralized Online Social Network with Efficient User-Driven Replication

Karl Aberer, Rammohan Narendula, Athanasios Papaioannou

Unprecedented growth of online social networks (OSNs) increasingly makes privacy advocates and government agencies worrisome alike. In this paper, we propose My3, a privacy-friendly decentralized alternative for online social networking. The My3 system exp ...

IEEE2012

Cloud based Social and Sensor Data Fusion

Karl Aberer, Surender Reddy Yerva, Ho Young Jeung

As mobile cloud computing facilitates a wide spectrum of smart applications, the need for fusing various types of data available in the cloud grows rapidly. In particular, social and sensor data lie at the core in such applications, but typically processed ...

IEEE2012

Model-Based Similarity Measure in TimeCloud

Karl Aberer, Ho Young Jeung

This paper presents a new approach to measuring similarity over massive time-series data. Our approach is built on two principles: one is to parallelize the large amount computation using a scalable cloud serving system, called TimeCloud. The another is to ...

Springer2012

Effectively Modeling Data from Large-area Community Sensor Networks

Karl Aberer, Saket Sathe, Sebastian Cartier, Dipanjan Chakraborty

Effectively managing the data generated by Large-area Community driven Sensor Networks (LCSNs) is a new and challenging prob- lem. One important step for managing and querying such sensor network data is to create abstractions of the data in the form of mo ...

Assoc Computing Machinery2012

ConDense: Managing Data in Community-driven Mobile Geosensor Networks

Karl Aberer, Saket Sathe, Sebastian Cartier, Dipanjan Chakraborty

Effectively managing the data generated by community-driven mobile geo-sensor networks is a new and challenging problem. One important step for managing and querying sensor network data is to create abstractions of the data in the form of models. These mod ...

2012

Scalia: An Adaptive Scheme for Efficient Multi-Cloud Storage

Nicolas Bonvin, Karl Aberer

A growing amount of data is produced daily resulting in a growing demand for storage solutions. While cloud storage providers offer a virtually infinite storage capacity, data owners seek geographical and provider diversity in data placement, in order to a ...

2012

Towards the Realization of Decentralized Online Social Networks: an Empirical Study

Karl Aberer, Rammohan Narendula

As the Online Social Networks (OSNs) amass unprecedented amounts of personal information, the privacy concerns gain considerable attention from the community. Apart from privacy-enabling approaches for existing OSNs, a number of initiatives towards buildin ...

2012

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