Category: Semantic technologies (Page 17 of 72)

The Defence Science and Technology Laboratory (Dstl) has released a new free version of its popular data processing tool. Baleen 3 is a tool for building data processing pipelines using the open source Annot8 framework and succeeds Baleen 2, one of the first open source projects by Dstl, the science inside UK defence and security. It offers users the ability to search, process and collate data, and is suitable for personal and commercial applications. It has been used across government, and by industry and academia, and also internationally as well as in the UK.

The tool enables the creation of a bespoke chain of “processors” to extract information from unstructured data (e.g. text documents, images). For example, Baleen 3 could process a folder with thousands of Word Documents and PDFs in it to extract all e-mail addresses and phone numbers in those documents and store them in a database. As well as text, Baleen 3 can also find and extract images within those documents, perform OCR to find text within those images, translate that text into English, and then run machine learning models to find mentions of People within those images. Baleen 3 supports components developed within the Annot8 framework, and as a result it is easy to extend and develop further to cover new use cases and provide additional functionality. There are already a large number of components available for use within the Annot8 framework, including some previously developed by Dstl.

Following the release of Baleen 3, support for the existing Baleen 2 project will be withdrawn. Dstl is encouraging all users to move to using Baleen 3 where possible. Baleen 3 is built on top of newer technologies, and will be easier to maintain and deploy as a result of the upgrade. It also extends Baleen 2’s focus on text to support other forms of unstructured data, such as images. Baleen 3 is available to download now.

https://github.com/dstl/baleen

Google-affiliated researchers released the Language Interpretability Tool (LIT), an open source, framework-agnostic platform and API for visualizing, understanding, and auditing natural language processing models. It focuses on questions about AI model behavior, like why models made certain predictions and why they’re performing poorly with input corpora. LIT incorporates aggregate analysis into a browser-based interface that’s designed to enable explorations of text generation behavior. The tool set is architected so that users can hop between visualizations and analysis to test hypotheses and validate those hypotheses over a data set. New data points can be added on the fly and their effect on the model visualized immediately, while side-by-side comparison allows for two models or two data points to be visualized simultaneously. And LIT calculates and displays metrics for entire data sets to spotlight patterns in model performance, including the current selection, manually generated subsets, and automatically generated subsets.

LIT works with any model that can run from Python, the Google researchers say, including TensorFlow, PyTorch, and remote models on a server. And it has a low barrier to entry, with only a small amount of code needed to add models and data. The team cautions that LIT doesn’t scale well to large corpora and that it’s not “directly” useful for training-time model monitoring. But they say that in the near future, the tool set will gain features like counterfactual generation plugins, additional metrics and visualizations for sequence and structured output types, and a greater ability to customize the UI for different applications.

H/T VentureBeat: https://venturebeat.com/2020/08/14/google-open-sources-lit-a-toolset-for-evaluating-natural-language-models/

Neofonie announced that TXTWerk – Text mining for SAP solutions, a framework application is now available for trial and online purchase on SAP App Center, the digital marketplace for SAP partner offerings. TXTWerk is delivered online as a subscription service and integrates with SAP and third-party software through the API management capabilities of SAP Cloud Platform Integration Suite. TXTWerk enables the extraction of metadata from texts, providing structured data from unstructured texts. By applying machine learning techniques in combination with rule-based approaches, TXTWerk can read and understand texts quickly. Whether 1,000 or 10 billion documents need to be processed, TXTWerk recognizes the most important keywords, people, places, organizations, events and key concepts and links them to sources such as knowledge graphs or internal company data. Also, part of the framework are artificial intelligence (AI) processes for classification in classes defined by the customer, a sentiment analysis of texts, phrase and role recognition as well as the automatic linking of entities according to specially defined relations. In addition to the AI processes, TXTWerk comes with a knowledge graph with over seven million entries.

https://www.neofonie.de/english, https://www.sapappcenter.com/en/product/display-0000059151_live_v1