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Free-Text - Search - Geospatial [clear filter]
Monday, September 28
 

10:30

Geospatial querying in Apache Marmotta - Sergio Fernández, Redlink GmbH
Apache Marmotta provides different means of querying: SPARQL, LDPath, LDP, etc. GeoSPARQL provides an extension to the SPARQL constructs to represent and query geospatial data. The talk will present the ongoing effort to add GeoSPARQL support in Marmotta, going through the challenges and potential of this new set of features, demoing some of then during the talk.

The work is currently being developed in the context of the Google Summer of Code 2015, further details at https://wiki.apache.org/marmotta/GSoC/2015/MARMOTTA-584

Speakers
avatar for Sergio Fernández

Sergio Fernández

Software Engineer, Redlink GmbH
I'm a Software engineer specialized in innovation, with a focus on Data Architectures. My interests include Distributed Architectures, Data Integration, Linked Data and System Engineering. I've worked as software engineer and project manager in different industries, but always somehow... Read More →


Monday September 28, 2015 10:30 - 11:20
Tohotom

11:30

Combining Solr and Elasticsearch to Improve Autosuggestion for Local Search on Mobile - Toan Luu, local.ch AG
Many search applications simply suggest queries or data items with a prefix match on what the user is typing sorted by popularity. With the advent of the mobile era, local.ch becomes one of the most used applications for local search in Switzerland. Some characteristics of a mobile application e.g. (a) difficulty of typing on small screen, and (b) more available personalized data from users (e.g. location), generated challenges for us when implementing the autosuggest feature. We finally brought a better autosuggest experience to our users based on: their search history, popularity of internal and external data, user context awareness (language, location), spellchecker...
In this talk we will describe the architecture of our autosuggest feature, how did we use Solr as a search component and Elasticsearch as a data aggregation component to improve autosuggest in our mobile application.

Speakers
avatar for Toan Luu

Toan Luu

Senior Search Engineer, local.ch AG
Toan Vinh Luu obtained his PhD in the domain of Decentralized Information Retrieval Systems from the Swiss Institute of Technology in Lausanne (EPFL) in 2007. After a year working as a PostDoc at the EPFL, he joined local.ch ag, where he has worked in the search team of the company... Read More →


Monday September 28, 2015 11:30 - 12:20
Tohotom

14:00

What's New in Apache HTrace - Colin McCabe, Cloudera
Apache HTrace is a distributed tracing framework, currently in the incubator, which makes it easier to monitor and understand the performance of distributed systems. In this talk, I'll give an overview of the HTrace project. I'll also talk about how developers can engage with the HTrace community, and potentially integrate HTrace into their own projects.

The last few months have been an exciting time in the HTrace project. I'll talk about the new web interface, htraced trace sink, improvements to the client API, and other exciting new work .

Finally, I'll give a demo of using HTrace to find problems and optimize performance in a Hadoop cluster.

Speakers
CM

Colin McCabe

Software Engineer, Cloudera
Colin McCabe is a Platform Software Engineer at Cloudera, where he works on HDFS and related technologies. He is a committer on HDFS. Prior to joining Cloudera, he worked on the Ceph Distributed Filesystem, and the Linux kernel, among other things. He studied Computer Science and... Read More →


Monday September 28, 2015 14:00 - 14:50
Tohotom

15:00

Apache Tika for Enabling Metadata Interoperability - Michael Starch, NASA Jet Propulsion Laboratory and Nick Burch
Apache Tika is the de facto standard technology for textual content and metadata extraction from over a thousand different file types. Given the growing importance of metadata, Tika has become a fundamental tool, providing support for many metadata models. However, enabling uniform access to very large sets of heterogeneous documents requires dealing with most accurate interoperability techniques, such as metadata mapping. In this talk, Michael and Nick will review existing solutions based on Tika that make possible to obtain consistent metadata across file formats (i.e., TikaCoreProperties, Solr’s ExtractingRequestHandler) and then present a new component for Tika. This integration provides an extension of Metadata object in order to achieve metadata interoperability by using a highly configurable, fine-grained mapping technique that subsumes schema mapping and instance transformation.

This work has been proposed by Giuseppe Totaro (“Sapienza" University of Rome) and Chris Mattmann (NASA JPL). 

Speakers
NB

Nick Burch

CTO, Quanticate
Nick began contributing to Apache projects in 2003, and hasn't looked back since! He's mostly involved in "Content" projects like Apache POI, Apache Tika and Apache Chemistry, as well as foundation-wide activities like Conferences and Travel Assistance.Nick is CTO at Quanticate, a... Read More →
MS

Michael Starch

Computer Engineer in Applications, NASA Jet Propulsion Laboratory
Michael Starch has been employed by the Jet Propulsion laboratory for the past 5 years. His primary responsibilities include: engineering big data processing systems for handling scientific data, researching the next generation of big data technologies, and helping infuse these systems... Read More →


Monday September 28, 2015 15:00 - 15:50
Tohotom

16:00

Recent Evolution of Standards for Geospatial Applications and TheirIimplementation in Apache SIS - Martin Desruisseaux, Geomatys
Apache Spatial Information System (SIS) is a Java library for developing geospatial applications which conform to international standards. SIS implements interfaces derived from UML published jointly by the Open Geospatial Consortium (OGC) and the International Organization for Standardization (ISO). In the North America ApacheCon 2014 we introduced the OGC vision and how SIS implements the “geospatial metadata” and “referencing by coordinates” international standards. In this presentation we will present what is new on the standards front: the “metadata” revision published in 2014, and the “Well-Known Text 2” format which can be seen as an evolution of “referencing by coordinates”. We will present which problems the new standards solve, and how SIS preserves compatibility between the old and new standards. Finally we will present the plan for next SIS developments.

Speakers
MD

Martin Desruisseaux

Developer, Geomatys
Martin holds a Ph.D thesis in oceanography, but has continuously developed tools for helping his analysis work. He used C/C++ before to switch to Java in 1997. He develops geospatial libraries since that time, initially as a personal project then as a GeoTools contributor until 2008... Read More →


Monday September 28, 2015 16:00 - 16:50
Tohotom
 
Tuesday, September 29
 

10:30

Search-Based Business Intelligence and Reverse Data Engineering with Apache Solr - Mario-Leander Reimer, QAware GmbH
We are searching the unknown. How can you find hidden and unknown relationships in unrelated data silos? How can you find relevant information in a 10^56 dimensional space? Sounds impossible? This talk will present a case study and success story about how Apache Solr has been used to build a search based business intelligence and information research application to answer these questions for a major German car manufacturer.

Speakers
avatar for Mario-Leander Reimer

Mario-Leander Reimer

Principal Software Architect, QAware GmbH
M.-Leander Reimer is a principal software architect, passionate developer and #CloudNativeNerd working for QAware GmbH. He is continuously looking for innovations in software engineering and ways to combine and apply state-of-the-art technology in real-world projects. He is a regular... Read More →



Tuesday September 29, 2015 10:30 - 11:20
Tohotom

11:30

What's New With Apache Tika? - Nick Burch
Apache Tika detects and extracts metadata and text from a huge range of file formats and types. From Search to Big Data, single file to internet scale, if you've got files, Tika can help you get out useful information!

Apache Tika has been around for nearly 10 years now, and in that time, a lot has changed. Not only has the number of formats supported gone up and up, but the ways of using Tika have expanded, and some of the philosophies on the best way to handle things have altered with experience. Tika has gained support for a wide range of programming languages to, and more recently, Big-Data scale support, and ways to automatically compare effects of changes to the library.

Whether you're an old-hand with Tika looking to know what's hot or different, or someone new looking to learn more about the power of Tika, this talk will have something in it for you!

Speakers
NB

Nick Burch

CTO, Quanticate
Nick began contributing to Apache projects in 2003, and hasn't looked back since! He's mostly involved in "Content" projects like Apache POI, Apache Tika and Apache Chemistry, as well as foundation-wide activities like Conferences and Travel Assistance.Nick is CTO at Quanticate, a... Read More →


Tuesday September 29, 2015 11:30 - 12:20
Tohotom