This is the home page of the Polish Sentiment Treebank

The dataset is a dependency treebank with sentiment annotations. It was parsed using the Polish dependency parser models available from http://zil.ipipan.waw.pl/PolishDependencyParser.

For each sentence in the treebank, sentiment of each sub-phrase (sub-tree) has been assigned by a linguist. Sentiment of each leaf word has been labelled according to Polish sentiment dictionary, an extension of http://zil.ipipan.waw.pl/SlownikWydzwieku/ and also verified manually.

Sentiment labels of both phrases and leaves include three classes: neutral, positive and negative.

The treebank has been created specifically for the purpose of analysing compositional sentiment effects in Polish language.

Treebank Wydzwieku: version 1.0 (initial)

* The first part of the treebank is composed from the sub-part of Skladnica treebank, namely from sentences that contain at least one sentiment-bearing word. This part consists of 235 sentences (1915 sentiment-annotated multiword phrases). * The second part consits of 965 sentences from a product review corpus available from http://zil.ipipan.waw.pl/OPTA/. The number of sentiment-annotated multiword phrases is 4640.

Together, the first version of the treebank consisted of 6555 sentiment-annotated phrases from the parse trees of 1200 sentences. The resource described is the first freely available corpus with fully labeled parse trees that allows for a complete analysis of the compositional effects of sentiment in the Polish language.

Treebank Wydzwieku: version 2.0 (aug 2018 )

As we have added many sentences, we have released a 2.0 version of the treebank! It contains following new parts:

• test sentences from PolEval 2017 sentiment task

• 1000 new sentences collected from various sources on the web, mostly difficult, mixed sentiments and negative

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Releases: * version 1.0 * version 2.0 [new!].