Báo cáo khoa học: "Interactive Topic Modeling" docx

... Knowledge in Topic Models At a high level, topic models such as LDA take as input a number of topics K and a corpus. As output, a topic model discovers K distributions over words — the namesake topics ... tables shown in topic modeling papers, topics discovered by topic modeling don’t always make sense to os- tensible end users. Part of the problem is that the objective function of...

Ngày tải lên: 07/03/2014, 22:20

Ngày tải lên: 20/02/2014, 09:20

... to identify major subtopics within the main topic. Each sentence in the document set is then ranked, us- ing the key concept structures. These n-gram key concepts are called topic signatures. Content ... filters. The sec- ond row of parameters displays the set of topic sig- natures identified by the iNeATS engine. The se- lected subset of the topic signatures defines the con- tent focus f...

Ngày tải lên: 20/02/2014, 16:20

Ngày tải lên: 16/03/2014, 19:20

... feature set enriched with topic information on a small dataset of music reviews hand-annotated for topic. The results of these experiments suggest ways in which incorporating topic information into ... average ACT value of all adjectives in a text. TOPIC- sentence EVA The average EVA value of all adjectives which share a sentence with the topic of the text. TOPIC- sentence POT The av...

Ngày tải lên: 31/03/2014, 03:20

Ngày tải lên: 19/02/2014, 19:20

... topics. The ap- proach is unsupervised, allowing both segmenta- tion and topic extraction from unlabelled data. 3 Learning topics and segments We specify our model to address the problem of topic ... drawing the topic assignment for each word, z u,i , conditioned on all other topic assign- ments, z −(u,i) , all topic change indicators, c, and all words, w; and then drawing the topi...

Ngày tải lên: 20/02/2014, 11:21

Ngày tải lên: 20/02/2014, 18:20

... should be applicable to stories which require the use of such knowledge structures. This is a topic of current research. It Is worth noting that the form of a story's representation may

Ngày tải lên: 21/02/2014, 20:20

Ngày tải lên: 21/02/2014, 20:20