Abstract Methods for Approximate Query Processing (AQP) are essential for dealing with
massive data. They are often the only means of providing interactive response times when …

Most existing query processing algorithms for wireless sensor networks (WSNs) can only
deal with discrete values. However, since the monitored environment always changes …

Sketch techniques have undergone extensive development within the past few years. They
are especially appropriate for the data streaming scenario, in which large quantities of data …

The massive volume of data generated in modern applications can overwhelm our ability to
conveniently transmit, store, and index it. For many scenarios, building a compact summary …

A foreign/primary key relationship between relational tables is one of the most important
constraints in a database. From a data analysis perspective, discovering foreign keys is a …

Traffic measurement provides critical information for network management, resource
allocation, traffic engineering, and attack detection. Most prior art has been geared towards …

Secure data aggregation schemes are widely adopted in wireless sensor networks, not only
to minimize the energy and bandwidth consumption, but also to enhance the security …

Cardinality estimation plays an important role in processing big data. We consider the
challenging problem of computing millions or more distinct count aggregations in a single …

The topic of outlier detection in sensor networks has received significant attention in recent
years. Detecting when the measurements of a node become" abnormal''is interesting …

Many applications based on Internet of Things (IoT) technology have recently founded in
industry monitoring area. Thousands of sensors with different types work together in an …