Citi and GE say aye to Ayasdi

Ayasdi, a US-based data analysis company which combines machine learning techniques with a branch of mathematics called topographical data analysis (TDA), has raised $30.6m is series B funding led by later-stage venture capital firm Institutional Venture Partners (IVP), with participation from Citi Ventures, the corporate venturing arm of financial services company Citi, and GE Ventures, the corporate venturing unit of industrial conglomerate General Electric.  Existing investors, venture capital firms Khosla Ventures and Floodgate, also participated.