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| <html> |
| <head> |
| <title>Apache UIMA v3.0.0-alpha02 Release Notes</title> |
| </head> |
| <body> |
| <h1>Apache UIMA (Unstructured Information Management Architecture) v3.0.0-alpha02 Release Notes</h1> |
| |
| <h2>Contents</h2> |
| <p> |
| <a href="#alpha">Alpha release status notice</a><br/> |
| <a href="#what.is.uima">What is UIMA?</a><br/> |
| <a href="#major.changes">Major Changes in this Release</a><br/> |
| <a href="#get.involved">How to Get Involved</a><br/> |
| <a href="#report.issues">How to Report Issues</a><br/> |
| <a href="#list.issues">List of JIRA Issues Fixed in this Release</a><br/> |
| </p> |
| |
| <h2><a id="alpha">0. Alpha release status</a></h2> |
| <p>This is an alpha release, done in order to expand the |
| community of people doing initial testing on this new release. |
| As such, it is possible that bugs or deficiencies may be found |
| which might require changes to APIs.</p> |
| |
| <p>Following a period of alpha testing, depending on the results, |
| we will proceed to more official releases. |
| </p> |
| |
| <h2><a id="what.is.uima">1. What is UIMA?</a></h2> |
| |
| <p> |
| Unstructured Information Management applications are |
| software systems that analyze large volumes of |
| unstructured information in order to discover knowledge |
| that is relevant to an end user. UIMA is a framework and |
| SDK for developing such applications. An example UIM |
| application might ingest plain text and identify |
| entities, such as persons, places, organizations; or |
| relations, such as works-for or located-at. UIMA enables |
| such an application to be decomposed into components, |
| for example "language identification" -> "language |
| specific segmentation" -> "sentence boundary |
| detection" -> "entity detection (person/place names |
| etc.)". Each component must implement interfaces defined |
| by the framework and must provide self-describing |
| metadata via XML descriptor files. The framework manages |
| these components and the data flow between them. |
| Components are written in Java or C++; the data that |
| flows between components is designed for efficient |
| mapping between these languages. UIMA additionally |
| provides capabilities to wrap components as network |
| services, and can scale to very large volumes by |
| replicating processing pipelines over a cluster of |
| networked nodes. |
| </p> |
| <p> |
| Apache UIMA is an Apache-licensed open source |
| implementation of the UIMA specification (that |
| specification is, in turn, being developed concurrently |
| by a technical committee within |
| <a href="http://www.oasis-open.org">OASIS</a>, |
| a standards organization). We invite and encourage you |
| to participate in both the implementation and |
| specification efforts. |
| </p> |
| <p> |
| UIMA is a component framework for analysing unstructured |
| content such as text, audio and video. It comprises an |
| SDK and tooling for composing and running analytic |
| components written in Java and C++, with some support |
| for Perl, Python and TCL. |
| </p> |
| |
| <h2><a id="major.changes">Major Changes in this Release</a></h2> |
| |
| <p>Version 3 is a major reimplementation of the internals of UIMA, |
| with many significant changes. A one-time migration step is required if |
| JCas cover classes are being used. |
| Please read the Version 3 users guide located in the docs directory |
| for information on these changes and the migration tool. |
| </p> |
| |
| <p>A very brief summary of Version 3: |
| <ul><li>Feature Structures become Java Objects, |
| and may be Garbage Collected.</li> |
| <li>Many performance improvements</li> |
| <li>Iterating over indexes no longer throws |
| ConcurrentModificationException</li> |
| <li>Support for arbitrary Java Objects in the CAS</li> |
| <li>Using above, new semi-built-ins for ArrayList style |
| lists of Feature Structures and ints, and a FSHashSet</li> |
| <li>New "select" framework for flexible |
| access to Feature Structures</li> |
| <li>Integration with Java 8 facilities such as Streams</li> |
| <li>Logging framework upgraded</li> |
| </ul> |
| </p> |
| |
| <p>Please read the overview section of the Version 3 |
| users guide for more.</p> |
| |
| <p>Specific changes in this release versus the previous alpha release include |
| <ul> |
| <li>The Eclipse update site for version 3 alpha is now under a new |
| higher level directory, "uimaj-v3-pre-production". This is to avoid |
| users accidentally installing it when they meant to get the lastest |
| production level, which remains under "uimaj". |
| </li> |
| <li>The "select" framework APIs had javadocs added and some fixes which resulted in API changes for some methods.</li> |
| <li>Logging was upgraded in two ways: The log4j back end for the UIMA logger was upgraded to log4j 2 (the current version). |
| And, support was added for the slf4j logging facade. |
| The UIMA Logger now implements all the SLF4J Logger APIs, plus the APIs that use Java 8 Suppliers, from |
| the Log4j Logger API.</li> |
| <li>changes made to uimaj-2.9.0 were merged.</li> |
| <li>Various implementations of UIMA built-in types which have corresponding Java 8 non-boxing versions of methods were |
| augmented to support non-boxing alternatives; see the API changes report for details.</li> |
| </ul> |
| </p> |
| |
| <h3>API changes</h3> |
| <p>This version includes a new API compatibility report covering the non-internal APIs; |
| see <a href="api-change-report.html">change report</a> for the list of API changes |
| since version 2.9.0. |
| </p> |
| |
| <h2><a id="list.issues">Full list of JIRA Issues affecting this Release</a></h2> |
| Click <a href="issuesFixed/jira-report.html">issuesFixed/jira-report.hmtl</a> for the list of |
| issues affecting this release. |
| |
| <h2><a id="alpha">Alpha Release</a></h2> |
| <p>Because this release makes major changes to UIMA internals, |
| this is an alpha release of version 3. It is being made to get |
| wider community involvement in testing and feedback. |
| The APIs may change, and features |
| may be added or altered.</p> |
| |
| <p>Please use the mailing lists |
| ( http://uima.apache.org/mail-lists.html ) |
| for feedback.</p> |
| |
| <h2><a id="get.involved">How to Get Involved</a></h2> |
| <p> |
| The Apache UIMA project really needs and appreciates any contributions, |
| including documentation help, source code and feedback. If you are interested |
| in contributing, please visit |
| <a href="http://uima.apache.org/get-involved.html"> |
| http://uima.apache.org/get-involved.html</a>. |
| </p> |
| |
| <h2><a id="report.issues">How to Report Issues</a></h2> |
| <p> |
| The Apache UIMA project uses JIRA for issue tracking. Please report any |
| issues you find at |
| <a href="http://issues.apache.org/jira/browse/uima">http://issues.apache.org/jira/browse/uima</a> |
| </p> |
| |
| |
| </body> |
| </html> |
