leximancer tijana husić textual content analysis tool
TRANSCRIPT
Leximancer
Tijana Husić
Textual content analysis tool
2/10
Leximancer
• Australian company
• 10 years providing leading-edge text analytics technology
• Market research, defence, government, consulting, insurance, legal, intelligence, pharmaceuticals and health care
3/10
Leximancer
• Performs analysis systematically and graphically by creating a map of the constructs
• Each word on the
document map represents
a concept
4/10
Algorithm• Uses optimal weight to predict the concepts present in
fragments of related text.
• The relationships are measured by the weighted sum of the number of times two concepts are found in the same ‘chunk’.
• An algorithm determine the confidenceand relevancy of the
terms to others in a specific chunk and across chunks.
5/10
Advantages
• Ability to– derive the main concepts within text – identify the strengths between concepts (how
often they co-occur)– assist in visually exploring textual information
for related themes – assist in identifying similarities in the context in
which the concepts occur – contextual similarity.
6/10
Advantages • Leximancer can process text in languages
other than English– Danish, German, Greek, French, Croatian,
Indonesian, Italian , Malay, Dutch, Polish, Portuguese, Russian, Serbian, Swedish
7/10
8/10
HVALA!