Method and system for retrieving time-series information

• US 5,412,769 A
• Filed: 12/22/1992
• Issued: 05/02/1995
• Est. Priority Date: 01/24/1992
• Status: Expired due to Fees

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Masui, Shoichi, Maruoka, Tetsuya
• Primary Examiner(s): Nguyen, Phu K.
• Application Number:
  US07/995,154
• Time in Patent Office: 861 Days
• Field of Search: 395/140, 395/155, 395/161, 395/141, 395/142, 395/143, 345/133, 345/134, 345/139, 345/140
• US Class Current: 345/440
• CPC Class Codes: G06F 16/2474 Sequence data queries, e.g. querying versioned data
• CPC Class Codes: G06F 17/18 for evaluating statistical data , e.g. average values, frequency distributions, probability functions, regression analysis forecasting specially adapted for a specific administrative, business or logistic context G06Q10/04
• CPC Class Codes: G06Q 99/00 Subject matter not provided for in other groups of this subclass

Abstract

A method and apparatus is provided for retrieving time-series information so as to permit a user to readily retrieve non-numeric data such as character sequence information. The system provides for a prediction system to take into consideration such non-numeric data in association with retrieval result. In the system, a transition graph of the time-series data is displayed, a prediction result is determined based on determined time-series information, and a representation as to validity of a prediction to actual data is displayed on the graph. When a user enters a desired time point, news and event occurrences at that time point are retrieved from an event database and they are displayed in a designated area. Thus, the non-numeric information, such as news, which has occurred at a prediction miss point can be reflected to a prediction rule during a subsequent prediction.

Claims

1. A method for retrieving time-series information by predicting future time-series information based on determined time-series information by using a computer having a memory;

comprising the steps of;

preparing detail of the determined time-series information in a table;

storing past time-series news and event information in a database;

displaying a graph representing transition of the determined time-series information on a screen;

calculating prediction result for each point based on the detail of the determined time-series information;

determining whether the calculated prediction result hits to the determined time-series information or not;

applying a hit/miss mark on the graph; and

retrieving past time-series news and event information corresponding to a time point on the graph entered by a user and displaying the retrieved news and event information on the screen.

2. A method for retrieving time-series information according to claim 1 wherein said database contains the time-series past news and event information as well as classification information, and when the news and event information are retrieved and to be displayed on the screen the news and event information are classified by the class.

3. A method for retrieving time-series information according to claim 1 wherein the determined time-series information is data relating to a trade price in dealing, and when prediction result for a time point of the past data is to be calculated, a trade price is predicted by using an IF-THEN type rule.

4. A method for retrieving time-series information according to claim 2 wherein the determined time-series information is data relating to a trade price in dealing, and when prediction result for a time point of the past data is to be calculated, a trade price is predicted by using an IF-THEN type rule.

5. A method for retrieving time-series information by predicting future time-series information based on determined time-series information by using a computer having a memory, comprising the steps of:

storing time-series past news and event information in a database in association with the determined time-series information;

displaying a graph representing a transition of the determined time-series information on a screen;

determining a time point on the time-series information corresponding to a point on the displayed time-series information graph pointed by a user; and

querying to the database by using the determined time point.

6. A system for retrieving time-series information comprising:

a keyboard for entering a retrieval condition by a user;

a processor for carrying out retrieval and information display processes;

a display for displaying a processed result;

a memory for storing a database storing time-series past news and event information; and

a screen of said display including a graph display area for displaying a graph indicating a transition of determined time-series information, a hit/miss display area for displaying a mark indicating the hit/miss of prediction result at each time point on the graph, an area for designating a retrieval execution command, a command for clearing date misentered from the keyboard, and an end of process command, an input date display area for displaying an input date for retrieval, and a retrieval result display area for displaying news and event information retrieved from the database.

7. A method for retrieving time-series information by predicting future time-series information based on determined time-series information by using a computer having a memory comprising the steps of:

displaying a transition graph of time-series data;

determining prediction data based on the determined time-series information;

displaying the validity of prediction to actual data on the graph; and

retrieving news and event information occurred at a time point entered by a user from an event database and displaying the retrieved news and event in a designated area.