3. The method of claim 1 , wherein the plurality of channels comprises a tunnel model channel, wherein the tunnel of a word pattern comprises a predetermined width on either side of a set of the virtual keys representing a set of letters of a word on the virtual keyboard, and wherein the tunnel model channel is applied to the stroke before any other channel is applied to the stroke.
3. The method of claim 1 , wherein the plurality of channels comprises a tunnel model channel, wherein the tunnel of a word pattern comprises a predetermined width on either side of a set of the virtual keys representing a set of letters of a word on the virtual keyboard, and wherein the tunnel model channel is applied to the stroke before any other channel is applied to the stroke. 8. The method of claim 3 , wherein recognizing a word pattern using the tunnel model channel comprises transforming a tunnel and the stroke passing the tunnel.