The Linguistic Engineering Group

The Linguistic Engineering (LE) Group is part of the Department of Artificial Intelligence at the Institute of Computer Science, Polish Academy of Sciences (ICS PAS).

People

Research

The main research areas of the Group

• (Polish) corpus linguistics; cf. the IPI PAN Corpus of Polish and the National Corpus of Polish,

• syntactic and semantic parsing of Polish; cf. Spejd and Świgra,

• extraction of linguistic knowledge from corpora,
• information extraction,
• sentiment analysis,
• morphosyntactic system of Polish,
• generative linguistic formalisms, esp., HPSG and LFG.

The Group is a member of CLARIN, FLaReNet and META-NET.

Current externally funded projects

• CLARIN-PL (Polish chapter of Common Language Resources and Technology Infrastructure)

• PARSEME (PARSing and Multi-word Expressions. Towards linguistic precision and computational efficiency in natural language processing)

• NEKST (An adaptive system to support problem-solving on the basis of document collections in the Internet),

• SYNAT (Creation of a universal, open repository platform for hosting and communication of networked resources of knowledge for science, education and open knowledge-based society).

• Automatic detection and correction of annotation errors in Polish language corpora

Some of our past projects

• ATLAS (Applied Technology for Language-Aided CMS),

• CESAR (CEntral and South-east europeAn Resources),

• Construction of a treebank for Polish using automatic syntactic analysis,

• CORE (Computer-based methods for coreference resolution in Polish texts),

• CLARIN (Common Language Resources and Technology Infrastructure),

• NKJP (National Corpus of Polish),

• Automatic detection of semantic dependencies within verb argument structures in large treebanks,

• LUNA (spoken Language UNderstanding in multilinguAl communication systems) with the Polish support,

• LT4eL (Language Technology for eLearning),

• Automatic extraction of linguistic knowledge from a large corpus of Polish,

• Information Extraction from Polish free text,

• The IPI PAN Corpus of Polish,

• Treebank / Test Suite of Polish Utterances,

• HPSG Grammar of Polish.

Publicly available tools and resources

Here are some of the tools and resources created within our projects. See CLIP pages for a more exhaustive list of Polish tools and resources.

Tools (all open source, under GPL):

• Świgra – a DCG parser,

• Spejd – a shallow parsing and disambiguation system,

• TaKIPI – a morphosyntactic tagger for Polish,

• PANTERA – a morphosyntactic tagger for Polish,

• Poliqarp – a corpus indexing and search engine,

• Dendrarium – a treebank development system (under development),

• Anotatornia – a system for multi-level manual annotation of corpora (forthcoming),

• WSDDE – a system for designing and performing Word Sense Disambiguation experiments,

• Multiservice – web service for various of our tools,

• etc.

Resources:

• National Corpus of Polish,

• DistrNKJP – a distributable (IPR-free) subcorpus of National Corpus of Polish,

• IPI PAN Corpus of Polish (obsolete).

• Krzaki (bushes), a manually annotated for dependency structure 20k-sentence corpus of Polish.

Other activities

Links to some other activities of the Group:

• NLP Seminar at IPI PAN;

• Intelligent Information Systems series of conferences;

• PolTAL 2014 – 9th International Conference on Natural Language Processing, Warsaw (IPI PAN), Poland.