Automated market price analysis system
First Claim
1. A system for estimating price characteristics of a product from classified advertisements by selecting and extracting information from the classified advertisements, comprising:
- a source database of classified advertisement signals in the form of a plurality of character signals, the classified advertisement signals being representative of true market values of the product;
acquisition and filtering means for receiving the plurality of character signals and generating and storing relevant classified advertisement signals corresponding to the product and consisting of subsets of the classified advertisement signals in the form of characters;
attribute filter means for receiving the relevant classified advertisement signals and generating and storing filtered classified advertisement signals that include at least one quality signal and at least one quantity signal for each relevant classified advertisement signal;
price analyzer means for receiving the filtered classified advertisement signals, and generating price characteristic signals for the product using the quality signals and the quantity signals; and
graphing means for receiving the price characteristic signals and generating graphical display signals corresponding to the price characteristic signals of the product.
0 Assignments
0 Petitions
Accused Products
Abstract
A system for estimating price characteristics of a product from classified advertisements comprising a plurality of textual characters, comprises a relevant classified advertisement database, an attribute filter, a filtered classified advertisement database, a price analyzer and a graphing module. The relevant classified advertisement database stores relevant classified advertisement signals indicative of a subset of the classified advertisements which are directed to the product. The attribute filter receives the relevant classified advertisement signals, and generates in dependence thereupon numeric value signals indicative of prescribed subsets of characters in the subset of the classified advertisements. Each prescribed subset of characters represents a numeric value. The filtered classified advertisement database receives the numeric value signals and stores the numeric value signals. The price analyzer receives the numeric value signals from the filtered classified advertisement database, and determines the price characteristics of the product in dependence on the numeric value signals. The price analyzer also generates price characteristic signals in accordance with the price characteristics of the product. The graphing module receives the price characteristic signals and generates graphical display signals which present the price characteristics of the product in graphic form.
-
Citations
17 Claims
-
1. A system for estimating price characteristics of a product from classified advertisements by selecting and extracting information from the classified advertisements, comprising:
-
a source database of classified advertisement signals in the form of a plurality of character signals, the classified advertisement signals being representative of true market values of the product; acquisition and filtering means for receiving the plurality of character signals and generating and storing relevant classified advertisement signals corresponding to the product and consisting of subsets of the classified advertisement signals in the form of characters; attribute filter means for receiving the relevant classified advertisement signals and generating and storing filtered classified advertisement signals that include at least one quality signal and at least one quantity signal for each relevant classified advertisement signal; price analyzer means for receiving the filtered classified advertisement signals, and generating price characteristic signals for the product using the quality signals and the quantity signals; and graphing means for receiving the price characteristic signals and generating graphical display signals corresponding to the price characteristic signals of the product. - View Dependent Claims (2, 3, 4)
-
-
5. A system for estimating price characteristics of a product from classified advertisements by selecting and extracting information from classified advertisements, comprising:
-
a source database containing classified advertisements represented by a plurality of characters, the classified advertisements being representative of true market values of the product; acquisition and filtering means including; means for matching classified advertisements characters with nominal key words, and generating relevant classified advertisements, wherein each nominal key word consists of at least one character representative of classified advertisements; means for storing the relevant classified advertisements as characters;
attribute filter means comprising;means for selecting at least one quality attribute from each of the relevant classified advertisements by substantially matching relevant classified advertisement characters with numerical key words, wherein each numerical key word consists of at least one character; means for selecting at least one numeric value word from each of the relevant classified advertisements by substantially matching relevant classified advertisement characters with numerical key words, and generating an associated numeric value; means for storing the selected quality attributes, the selected numeric key words and the associated numeric values as filtered classified advertisements; price analyzer means for receiving the filtered classified advertisement signals, and generating price characteristic signals of the product; and means for graphing the price characteristic signals and generating graphical display signals corresponding to the price characteristic signals of the product. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12)
-
-
13. A method for estimating price characteristics of a product from classified advertisements by selecting and extracting information from the classified advertisements, comprising:
-
selecting a source of classified advertisements representative of true market values of the product; selecting relevant classified advertisements corresponding to the product from the source of classified advertisements; selecting and generating quality attributes and quantity attributes and associated numeric values corresponding to the product from the relevant classified advertisements; generating price characteristics of the product using the numeric values corresponding to the product; and generating graphical display signals which correspond to the price characteristics of the product. - View Dependent Claims (14, 15, 16, 17)
-
Specification