Hover over a software package to view its description. Click the title to view more details.
Learning Packages
Learning Based Java 
Learning Based Java (LBJ) is a modeling language that expedites the development of systems with one or more learning components. In an LBJ model, simple learned components are modeled conditionally, and their initial predictions are then combined via constrained optimization, yielding an expressive, globally coherent set of final predictions.
SNoW Learning Architecture
SNoW is a learning architecture that is tailored for learning in the presence of a very large number of information sources (features). SNoW learns a network of linear functions.
Feature Extraction Language (FEX)
FEX is a feature extraction package used to provide input to machine learning algorithms. FEX can be used to generate features from structured text or other relational data.
NLP Tools
Illinois Wikifier
This system identifies "important expressions" in the input text and cross-links them to Wikipedia
The Curator
The Curator is a system that acts as a central server in providing annotations for text. It is responsible for requesting annotations from multiple natural language processing servers, caching and storing previous annotations and refreshing stale annotations. The Curator provides a centralized resource which requests annotations for natural language text.
LLM (Lexical Level Matcher)
LLM is an asymmetric similarity measure between spans of text.
Edison
Edison is a java library for representing different NLP annotations (views) over text in the form of graphs over constituents. It provides easy-to-use accessors for different types of views and facilitates feature extraction.
Medical Coreference
This provides the source code for Medical Coreference Project.
MedConcepts
It is software to find medical concepts.
Illinois Named Entity Tagger
This is a state of the art NE tagger that tags plain text with named entitites. The newest version can tag with the "classic" label set (people / organizations / locations / miscellaneous) or a larger (18-label) set defined by the OntoNotes corpus. It uses gazetteers extracted from Wikipedia, word class model derived from unlabeled text and expressive non-local features. The best performance is 90.8 F1 on the CoNLL03 shared task data.
Maximum Subsequence Segmentation: Extract article text from HTML pages
Implementation of Maximum Subsequence Segmentation for extracting article text (or other blocks of content) from HTML documents
Illinois Part of Speech Tagger
This is an implementation of our SNoW-based POS tagger for use with LBJ.
Illinois Semantic Role Labeler (SRL)
The Semantic Role Labeler identifies the verb-argument structure in a sentence. Specifically, it labels the sentence with Propbank-style labels. This tool is a machine-learning based system that uses SNoW and FEX for local classification decisions, and Integer Linear Programming to make global inferences about sets of these local decisions.
Illinois Temporal Expression Extractor
The Illinois Temporal Extractor processes documents and extracts temporal expressions, relating them to each other and optionally to a reference date.
Illinois Chunker
A classifier that partitions plain text into sequences of semantically related words, indicating a shallow (i.e., non-hierarchical) phrase structure.
Illinois Coreference Package
A Coreference Resolver, based on LBJ, trained on the ACE 2004 corpus.
Illinois WNSim: WordNet-based Similarity Metric
WNSim provides a WordNet-based similarity metric that computes a symmetric similarity score between a pair of words or phrases. It is coded in c++, but runs as an xmlrpc service, so can be used by applications written in other languages.
Illinois WNSim (Java) WordNet-based Similarity Metric
This is a Java version of the C++ WNSim tool, which computes a similarity score based on relative positions of the compared terms within the WordNet hierarchy.
NESim: Named Entity Similarity Metric
NESim provides a similarity metric that computes a similarity score between a pair of Named Entities (People, Organizations, Locations, and Misc). It is coded in java, but runs as an xmlrpc service, so can be used by applications written in other languages.
Other Packages
Learning a model with limited memory
This software is aim at learning a linear classifier when data cannot fit in memory on a single machine
Descartes: Dataless Classification
This software gives an API to perform Dataless Classification
CATModel
Illinois Car Detection software
This software was used in the research described in the paper, "Learning to Detect Objects in Images via a Sparse, Part-Based Representation". It is provided 'as-is', and includes a README file to orient users. If you use this code or the data it was designed for, please cite the above work.
Illinois Lifted First-Order Probabilistic Inference
This package implements a Lifted First-Order Probabilistic Inference algorithm.
Illinois CoRanker: an algorithm for NE discovery
An implementation of CoRanker, an algorithm for Named Entity discovery from multilingual comparable corpora.
pySNoW: A Python interface to SNoW
pySNoW is a minimal python interface to the SNoW - Sparse Network of Winnows learning architecture. It is meant to be faithful to the original command line interface and provides access to the train, test, evaluate, interactive and server modes directly from python. pySNoW requires SNoW version 3.2.0.
Illinois Unsupervised Rank Aggregation
An implementation of an unsupervised learning algorithm for rank aggregation with distance-based models.
JLIS: a multi-purpose structural learning library (Structural Learning, Cost Sensitive Multiclass Classification, Reranking, Latent variables)
JLIS (pronounced as "jealous") is a multi-purpose structural learning library. JLIS-multiclass package supports performing cost-sensitive multiclass classification. JLIS-reranking package supports using the performance measure (e.g. F1) to do "weighted" reranking.
